Senior Penetration Tester Position Description CGI Cyber Security Team in the UK is one of the largest Cyber consultancies in the UK with around 300 members. The UK Cyber team works across a variety of domains including: Government, Defence, Critical Infrastructure, Healthcare, Utilities, Banking and Financial Services and Many more. At CGI you will get the opportunity to work across a number of domains and work in all areas of Cyber Security allowing you to grow and develop your career. We offer full 360-degree services to our clients from initial consulting on a range of areas including Risk Assessments, Vulnerability Management, Accreditations (ISO27001, GDPR), GRC (Governance, Risk, Compliance), Security Architecture Design and Build (technical and Non-technical), Incident Response, Protective Monitoring Services, Penetration Testing and much more. We take clients through a journey to improve their overall security posture and maturity to ensure they feel reassured in the Security control, measures and systems we have put in place in line with their requirements. At CGI training and development is very important not only do we give you training to keep you up to date with the latest trends within an ever-changing landscape, but we also combine that training with your career ambitions, so we support you in taking your career anywhere you want it to go. Our roles are only available if you hold or fulfil the criteria to obtain a UK Security Clearance. Your future duties and responsibilities An opportunity for an experienced penetration testers has become available due to growth, joining the CGI Cyber Security business unit, one of the largest groups of cyber security specialists in the UK. CGI has a long established reputation in this area, undertaking rigorous testing for a variety of commercial and public sector clients for over 30 years. Experience of the assessment of bespoke applications, cloud technologies and mobile applications (on diverse mobile platforms) would be of an advantage. You would join our established team of penetration testers with the possibility of progressing to team leader or principal tester positions. You would be able to work flexibly, undertaking work at home and at client sites across the UK. Required qualifications to be successful in this role We would be interested to talk further if you hold any of the following qualifications: - CHECK Team Leader (CTL) - CHECK Team Member (CTM) - CREST Certified Simulated Attack Specialist (CCSAS) - CREST Certified Tester (CCT). Sometimes known as CREST Certified Infrastructure Tester (CCT Inf) or CREST Certified Web Application Tester (CCT App) - Cyber Scheme Team Leader (CSTL) - TigerScheme Qualified Security Team Leader (QSTL) - Crest Registered Tester (CRT) - Cyber Scheme Team Member (CSTM) - TigerScheme Qualified Security Team Member (QSTM) - CREST Practitioner Security Analyst (CPSA) - Offensive Security Certified Professional (OSCP) Together, as owners, let's turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because You are invited to be an owner from day 1 as we work together to bring our Dream to life. That's why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company's strategy and direction. Your work creates value. You'll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. You'll shape your career by joining a company built to grow and last. You'll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. Come join our team-one of the largest IT and business consulting services firms in the world.
Jan 07, 2026
Full time
Senior Penetration Tester Position Description CGI Cyber Security Team in the UK is one of the largest Cyber consultancies in the UK with around 300 members. The UK Cyber team works across a variety of domains including: Government, Defence, Critical Infrastructure, Healthcare, Utilities, Banking and Financial Services and Many more. At CGI you will get the opportunity to work across a number of domains and work in all areas of Cyber Security allowing you to grow and develop your career. We offer full 360-degree services to our clients from initial consulting on a range of areas including Risk Assessments, Vulnerability Management, Accreditations (ISO27001, GDPR), GRC (Governance, Risk, Compliance), Security Architecture Design and Build (technical and Non-technical), Incident Response, Protective Monitoring Services, Penetration Testing and much more. We take clients through a journey to improve their overall security posture and maturity to ensure they feel reassured in the Security control, measures and systems we have put in place in line with their requirements. At CGI training and development is very important not only do we give you training to keep you up to date with the latest trends within an ever-changing landscape, but we also combine that training with your career ambitions, so we support you in taking your career anywhere you want it to go. Our roles are only available if you hold or fulfil the criteria to obtain a UK Security Clearance. Your future duties and responsibilities An opportunity for an experienced penetration testers has become available due to growth, joining the CGI Cyber Security business unit, one of the largest groups of cyber security specialists in the UK. CGI has a long established reputation in this area, undertaking rigorous testing for a variety of commercial and public sector clients for over 30 years. Experience of the assessment of bespoke applications, cloud technologies and mobile applications (on diverse mobile platforms) would be of an advantage. You would join our established team of penetration testers with the possibility of progressing to team leader or principal tester positions. You would be able to work flexibly, undertaking work at home and at client sites across the UK. Required qualifications to be successful in this role We would be interested to talk further if you hold any of the following qualifications: - CHECK Team Leader (CTL) - CHECK Team Member (CTM) - CREST Certified Simulated Attack Specialist (CCSAS) - CREST Certified Tester (CCT). Sometimes known as CREST Certified Infrastructure Tester (CCT Inf) or CREST Certified Web Application Tester (CCT App) - Cyber Scheme Team Leader (CSTL) - TigerScheme Qualified Security Team Leader (QSTL) - Crest Registered Tester (CRT) - Cyber Scheme Team Member (CSTM) - TigerScheme Qualified Security Team Member (QSTM) - CREST Practitioner Security Analyst (CPSA) - Offensive Security Certified Professional (OSCP) Together, as owners, let's turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because You are invited to be an owner from day 1 as we work together to bring our Dream to life. That's why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company's strategy and direction. Your work creates value. You'll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. You'll shape your career by joining a company built to grow and last. You'll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. Come join our team-one of the largest IT and business consulting services firms in the world.
Starling is the UK's first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. Read more about Our Story here. We're a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We're a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together! The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness. Hybrid Working We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. About the Role As an experienced Penetration Tester you will be working with talented cyber security professionals to protect Starling customers, company assets and systems using the latest technologies and techniques. The primary objective for this role is to collaborate with, support, and guide Starling's engineering and operation functions to ensure our services are designed, developed and operated securely. As an experienced member of our penetration testing team you will directly interact with multiple areas of the business to understand requirements, define the scope and approach to testing (including undertaking appropriate research), and produce reporting information aligned to our risk framework. In addition, we understand the importance of knowledge and expertise remaining current and you shall support the continued advancement of our penetration testing through research, design and implementation of new solutions, including automation. Responsibilities Scoping and performing mobile, web application, cloud, and infrastructure penetration tests. Automation of security testing, and development of internal tooling, to achieve continuous assurance. Collaboration with engineering teams to facilitate secure development, including: Review and analysis of proposed technical solutions to identify appropriate security controls. Input and guidance to security related technical architecture and design decisions. Code review of features and critical security components. Practical security testing. Advising on remediation of security issues and processes to address root causes. Security assurance reviews of third-party solutions. Identifying and implementing improvements to the team's internal processes and procedures. Review, analysis and reporting of external threats relevant to Starling systems and solutions, in the context of Starling's desired security posture. We're open-minded when it comes to hiring and we care more about aptitude and attitude than specific experience or qualifications. Ideally, we would like: 5+ years technical information security experience. Experience of mobile, web application, cloud and infrastructure penetration testing. Strong technical knowledge in: Mobile security (iOS and Android) Web application security Networking and associated protocols Cloud security (AWS and GCP) Containers and Kubernetes A desire to learn, and ability to apply technical security knowledge to new and unfamiliar areas. CREST, OSCP or similar industry penetration testing qualification A good understanding of applied cryptographic techniques. Reverse engineering and exploit development capabilities. Experience of security testing in an agile SDLC. Threat modelling experience. Experience performing code reviews, particularly in Java and Go. Experience of fulfilling a client facing security consulting role. Excellent verbal and written communication skills. Experience in automation of security testing, with previous development experience desirable. Interview process Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team: First stage with the Penetration Testing Team Lead Second stage with additional members of the Penetration Testing team Final stage with Infosec Director and CISO We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. In Technology, we're asking that you attend the office a minimum of 1 day per week. 25 days holiday (plus take your public holiday allowance whenever works best for you) An extra day's holiday for your birthday Annual leave is increased with length of service, and you can choose to buy or sell up to five extra days off 16 hours paid volunteering time a year Salary sacrifice, company enhanced pension scheme Life insurance at 4x your salary & group income protection Private Medical Insurance with VitalityHealth including mental health support and cancer care. Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton Generous family-friendly policies Perkbox membership giving access to retail discounts, a wellness platform for physical and mental health, and weekly free and boosted perks Access to initiatives like Cycle to Work, Salary Sacrificed Gym partnerships and Electric Vehicle (EV) leasing About Us You may be put off applying for a role because you don't tick every box. Forget that! While we can't accommodate every flexible working request, we're always open to discussion. So, if you're excited about working with us, but aren't sure if you're 100% there yet, get in touch anyway. We're on a mission to radically reshape banking - and that starts with our brilliant team. Whatever came before, we're proud to bring together people of all backgrounds and experiences who love working together to solve problems. Starling is an equal opportunity employer, and we're proud of our ongoing efforts to foster diversity & inclusion in the workplace. Individuals seeking employment at Starling Bank are considered without regard to race, religion, national origin, age, sex, gender, gender identity, gender expression, sexual orientation, marital status, medical condition, ancestry, physical or mental disability, military or veteran status, or any other characteristic protected by applicable law. When you provide us with this information, you are doing so at your own consent, with full knowledge that we will process this personal data in accordance with our Privacy Notice. By submitting your application, you agree that Starling Bank will collect your personal data for recruiting and related purposes. Our Privacy Notice explains what personal information we will process, where we will process your personal information, its purposes for processing your personal information, and the rights you can exercise over our use of your personal information.
Jan 01, 2026
Full time
Starling is the UK's first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way. Read more about Our Story here. We're a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We're a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices. Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together! The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness. Hybrid Working We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. About the Role As an experienced Penetration Tester you will be working with talented cyber security professionals to protect Starling customers, company assets and systems using the latest technologies and techniques. The primary objective for this role is to collaborate with, support, and guide Starling's engineering and operation functions to ensure our services are designed, developed and operated securely. As an experienced member of our penetration testing team you will directly interact with multiple areas of the business to understand requirements, define the scope and approach to testing (including undertaking appropriate research), and produce reporting information aligned to our risk framework. In addition, we understand the importance of knowledge and expertise remaining current and you shall support the continued advancement of our penetration testing through research, design and implementation of new solutions, including automation. Responsibilities Scoping and performing mobile, web application, cloud, and infrastructure penetration tests. Automation of security testing, and development of internal tooling, to achieve continuous assurance. Collaboration with engineering teams to facilitate secure development, including: Review and analysis of proposed technical solutions to identify appropriate security controls. Input and guidance to security related technical architecture and design decisions. Code review of features and critical security components. Practical security testing. Advising on remediation of security issues and processes to address root causes. Security assurance reviews of third-party solutions. Identifying and implementing improvements to the team's internal processes and procedures. Review, analysis and reporting of external threats relevant to Starling systems and solutions, in the context of Starling's desired security posture. We're open-minded when it comes to hiring and we care more about aptitude and attitude than specific experience or qualifications. Ideally, we would like: 5+ years technical information security experience. Experience of mobile, web application, cloud and infrastructure penetration testing. Strong technical knowledge in: Mobile security (iOS and Android) Web application security Networking and associated protocols Cloud security (AWS and GCP) Containers and Kubernetes A desire to learn, and ability to apply technical security knowledge to new and unfamiliar areas. CREST, OSCP or similar industry penetration testing qualification A good understanding of applied cryptographic techniques. Reverse engineering and exploit development capabilities. Experience of security testing in an agile SDLC. Threat modelling experience. Experience performing code reviews, particularly in Java and Go. Experience of fulfilling a client facing security consulting role. Excellent verbal and written communication skills. Experience in automation of security testing, with previous development experience desirable. Interview process Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team: First stage with the Penetration Testing Team Lead Second stage with additional members of the Penetration Testing team Final stage with Infosec Director and CISO We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. In Technology, we're asking that you attend the office a minimum of 1 day per week. 25 days holiday (plus take your public holiday allowance whenever works best for you) An extra day's holiday for your birthday Annual leave is increased with length of service, and you can choose to buy or sell up to five extra days off 16 hours paid volunteering time a year Salary sacrifice, company enhanced pension scheme Life insurance at 4x your salary & group income protection Private Medical Insurance with VitalityHealth including mental health support and cancer care. Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton Generous family-friendly policies Perkbox membership giving access to retail discounts, a wellness platform for physical and mental health, and weekly free and boosted perks Access to initiatives like Cycle to Work, Salary Sacrificed Gym partnerships and Electric Vehicle (EV) leasing About Us You may be put off applying for a role because you don't tick every box. Forget that! While we can't accommodate every flexible working request, we're always open to discussion. So, if you're excited about working with us, but aren't sure if you're 100% there yet, get in touch anyway. We're on a mission to radically reshape banking - and that starts with our brilliant team. Whatever came before, we're proud to bring together people of all backgrounds and experiences who love working together to solve problems. Starling is an equal opportunity employer, and we're proud of our ongoing efforts to foster diversity & inclusion in the workplace. Individuals seeking employment at Starling Bank are considered without regard to race, religion, national origin, age, sex, gender, gender identity, gender expression, sexual orientation, marital status, medical condition, ancestry, physical or mental disability, military or veteran status, or any other characteristic protected by applicable law. When you provide us with this information, you are doing so at your own consent, with full knowledge that we will process this personal data in accordance with our Privacy Notice. By submitting your application, you agree that Starling Bank will collect your personal data for recruiting and related purposes. Our Privacy Notice explains what personal information we will process, where we will process your personal information, its purposes for processing your personal information, and the rights you can exercise over our use of your personal information.
Select how often (in days) to receive an alert: Location: UK - Mobile England Job-ID: 215877 Contract type: Standard Business Unit: Cyber Security Life on the team Computacenter is growing our penetration testing capability and we are looking for an experienced penetration tester to support the delivery of vulnerability assessment and penetration testing services to Computacenter and our customers delivered services. As a highly skilled and motivated Penetration Tester, you will join our dynamic Cybersecurity team. In this role, you will be responsible for identifying vulnerabilities in systems, applications, and networks through a variety of penetration testing methodologies. Your expertise will play a critical role in strengthening our security posture and safeguarding our valuable assets from cyber threats. We are keen to develop our own people and will look at individuals, you will be involved in so many business projects whilst working with passionate Cyber Security Professionals. If you are looking for a team that offers development and flexibility look no further and apply today What you'll do A highly skilled and motivated Penetration Tester to join our dynamic cybersecurity team. In this role, you will be responsible for identifying vulnerabilities in our systems, applications, and networks through various penetration testing methodologies. You will play a critical role in strengthening our security posture and protecting our valuable assets from cyber threats. You will: Conduct comprehensive penetration tests: Execute internal and external network penetration tests, web application penetration tests, mobile application penetration tests, API penetration tests, cloud security assessments, and social engineering simulations. Vulnerability identification and analysis: Research, identify, and exploit security vulnerabilities in a variety of systems and applications. Red/Purple/Blue Teaming: participate in exercises with the goal of increasing cyber resilience for both offensive and defensive. Reporting and documentation: Prepare detailed and professional penetration test reports, including executive summaries, technical findings, risk ratings, and actionable recommendations for remediation. Collaboration and communication: Work closely with development, operations, and security teams to communicate findings, explain risks, and provide guidance on remediation strategies. Tooling and methodology enhancement: Continuously research and evaluate new penetration testing tools, techniques, and methodologies to improve testing efficiency and effectiveness. Security awareness: Contribute to the development and delivery of security awareness training for internal staff. Stay current: Keep abreast of the latest security threats, vulnerabilities, exploits, and industry best practices. Threat modelling: Participate in threat modelling exercises to identify potential attack vectors and design flaws. Ad-hoc security testing: Perform ad-hoc security assessments and provide expert advice on security-related matters as needed. What you'll need OSCP, PNPT or equivalent certification At least three years' experience working full-time as a penetration tester on the following areas as a minimum: Infrastructure Active Directory networks Cloud security (Entra ID/Azure) IoT physical security / social engineering Ability to develop custom tools, or adapt existing tooling for the task at hand Demonstrable experience contributing to open-source tools Bachelor's degree in Cybersecurity, Information Technology, or a related field. About us Computacenter is a leading independent provider of IT infrastructure services, with about 20,000 employees worldwide. We work at the heart of digitisation, advising organisations on IT strategy, implementing the most appropriate technology and managing our customers' infrastructures. We offer a friendly, open working environment without too much fuss about hierarchy. We are looking for professionals with diverse competencies, personalities and strengths who want to live our shared value of teamwork and performance. Interested in joining a company with a strong sense of community? We're growing. We're hiring. We encourage. We empower. We support.
Jan 01, 2026
Full time
Select how often (in days) to receive an alert: Location: UK - Mobile England Job-ID: 215877 Contract type: Standard Business Unit: Cyber Security Life on the team Computacenter is growing our penetration testing capability and we are looking for an experienced penetration tester to support the delivery of vulnerability assessment and penetration testing services to Computacenter and our customers delivered services. As a highly skilled and motivated Penetration Tester, you will join our dynamic Cybersecurity team. In this role, you will be responsible for identifying vulnerabilities in systems, applications, and networks through a variety of penetration testing methodologies. Your expertise will play a critical role in strengthening our security posture and safeguarding our valuable assets from cyber threats. We are keen to develop our own people and will look at individuals, you will be involved in so many business projects whilst working with passionate Cyber Security Professionals. If you are looking for a team that offers development and flexibility look no further and apply today What you'll do A highly skilled and motivated Penetration Tester to join our dynamic cybersecurity team. In this role, you will be responsible for identifying vulnerabilities in our systems, applications, and networks through various penetration testing methodologies. You will play a critical role in strengthening our security posture and protecting our valuable assets from cyber threats. You will: Conduct comprehensive penetration tests: Execute internal and external network penetration tests, web application penetration tests, mobile application penetration tests, API penetration tests, cloud security assessments, and social engineering simulations. Vulnerability identification and analysis: Research, identify, and exploit security vulnerabilities in a variety of systems and applications. Red/Purple/Blue Teaming: participate in exercises with the goal of increasing cyber resilience for both offensive and defensive. Reporting and documentation: Prepare detailed and professional penetration test reports, including executive summaries, technical findings, risk ratings, and actionable recommendations for remediation. Collaboration and communication: Work closely with development, operations, and security teams to communicate findings, explain risks, and provide guidance on remediation strategies. Tooling and methodology enhancement: Continuously research and evaluate new penetration testing tools, techniques, and methodologies to improve testing efficiency and effectiveness. Security awareness: Contribute to the development and delivery of security awareness training for internal staff. Stay current: Keep abreast of the latest security threats, vulnerabilities, exploits, and industry best practices. Threat modelling: Participate in threat modelling exercises to identify potential attack vectors and design flaws. Ad-hoc security testing: Perform ad-hoc security assessments and provide expert advice on security-related matters as needed. What you'll need OSCP, PNPT or equivalent certification At least three years' experience working full-time as a penetration tester on the following areas as a minimum: Infrastructure Active Directory networks Cloud security (Entra ID/Azure) IoT physical security / social engineering Ability to develop custom tools, or adapt existing tooling for the task at hand Demonstrable experience contributing to open-source tools Bachelor's degree in Cybersecurity, Information Technology, or a related field. About us Computacenter is a leading independent provider of IT infrastructure services, with about 20,000 employees worldwide. We work at the heart of digitisation, advising organisations on IT strategy, implementing the most appropriate technology and managing our customers' infrastructures. We offer a friendly, open working environment without too much fuss about hierarchy. We are looking for professionals with diverse competencies, personalities and strengths who want to live our shared value of teamwork and performance. Interested in joining a company with a strong sense of community? We're growing. We're hiring. We encourage. We empower. We support.
A global financial services provider is seeking a Senior Penetration Tester to join their internal offensive security team in Greater London. The role involves conducting thorough penetration tests on applications, infrastructure, and cloud environments. Candidates should have proven experience in security testing, familiarity with tools such as Burp Suite, and capacity for technical reporting. This position promotes collaboration and continuous improvement in security methodologies, making a significant impact on the firm's security posture.
Jan 01, 2026
Full time
A global financial services provider is seeking a Senior Penetration Tester to join their internal offensive security team in Greater London. The role involves conducting thorough penetration tests on applications, infrastructure, and cloud environments. Candidates should have proven experience in security testing, familiarity with tools such as Burp Suite, and capacity for technical reporting. This position promotes collaboration and continuous improvement in security methodologies, making a significant impact on the firm's security posture.
Role/Job Title:Pen Tester Work Location: Reading (3days) The Role We're looking for a Security Consultant / Senior Security Consultant with expertise in penetration testing. As part of our Cyber Security team, you shall perform penetration testing which includes internet, intranet, wireless, web application, social engineering and physical penetration testing click apply for full job details
Jan 01, 2026
Full time
Role/Job Title:Pen Tester Work Location: Reading (3days) The Role We're looking for a Security Consultant / Senior Security Consultant with expertise in penetration testing. As part of our Cyber Security team, you shall perform penetration testing which includes internet, intranet, wireless, web application, social engineering and physical penetration testing click apply for full job details
Ideas People Trust We're BDO. An accountancy and business advisory firm, providing the advice and solutions entrepreneurial organisations need to navigate today's changing world. We work with the companies that are Britain's economic engine - ambitious, entrepreneurially-spirited and high growth businesses that fuel the economy - and directly advise the owners and management teams that lead them. We'll broaden your horizons At our core, we believe that growth comes from exposure to diverse challenges. In this role, you'll have the opportunity to work across a wide range of engagements, thanks to the trust and scale of our clients. You will get hands-on experience with web application and API testing, Wireless assessments, Internal infrastructure tests, Mobile App security, Red and Purple team operations, Physical intrusion testing, hardware analysis, and more. No two projects are quite the same, and that's exactly how we like it. This variety allows our team to explore different domains, deepen existing strengths, and discover new areas of interest, all while solving real-world problems in live environments. Whether you're still shaping your focus or refining an existing specialty, you'll have space here to grow meaningfully. Manage risk for our clients to make them stronger for the future. Our Digital Services are designed to enable organisations to leverage our innovative methodologies, technology, and highly experienced professionals to manage their business risks most effectively. Working at BDO offers curious-minded people excellent exposure to all aspects of business strategy, operations and more. We're a dynamic team of internal auditors, accountants, technology, and business transformation experts with disciplines in finance, risk, projects and change, cyber and digital, amongst others. Our extensive network and depth of experience mean we work in a highly client-centric way, focused on providing a collaborative, tailor-made advisory service. Our team helps clients manage their business-critical threats, such as cyber events, and build resilient businesses capable of responding to internal and external events which may interrupt their operations. Being known for exceptional client service in our chosen markets, we put innovation and agility at the heart of everything we do. This is your chance to join a fast-paced, growing team and help shape the future of Digital at BDO. We'll help you succeed Leading organisations trust us because of the quality of our advice. That quality grows from a thorough understanding of their business, and that understanding comes from working closely with them and building long-lasting relationships. You'll be someone who is both comfortable working proactively and managing your own tasks, as well as confident collaborating with others and communicating regularly with senior managers, directors, and BDO's partners to help businesses effectively. You'll be encouraged to identify and draw attention to opportunities for enhancing our delivery and providing additional services to organisations we work with. We are seeking a highly skilled and experienced Senior Offensive Security penetration tester to join our dynamic team. This role involves conducting sophisticated penetration testing and red team engagements across various client systems and applications. The successful candidate will be instrumental in identifying vulnerabilities, enhancing client security postures, and leading initiatives to develop cutting-edge penetration testing methodologies and tools. Clients across industries and geographies, staying at the forefront of knowledge of the threat landscape, cyber defence best practices and regulatory expectations. Requirements: Strict Requirement: Strong certification in penetration testing such as OSCP (Offensive Security Certified Professional), CTM (Check Team Member), CRT (CREST Registered Tester) and OSWA (Offensive Security Web Attacks) or even better if you have Advanced certifications such as OSEP(OffSec Experience Penetration Tester), CCSAM (CREST Certified Simulated Attack Manager) and CTL (Check Team Leader). Solid experience in offensive security-whether through professional penetration testing, red teaming, bug bounty work, capture-the-flag competitions, or personal research projects. Proven ability to deliver impactful client engagements, demonstrating both technical depth and a practical understanding of risk. Deep knowledge of network protocols, different services, operating systems, different applications and how to break them. Proficiency in tools such as Metasploit, Burp Suite or other proxies such as Caido or Zap, Nessus, CobaltStrike or other C2 frameworks, etc. Bonus points for building your own tools, contributing to community projects, or chaining techniques creatively. Excellent problem-solving skills and a passion for ethical hacking that is persistent, curious, and know how to pivot when things do not go as planned. Experience coding and scripting custom tools in Python, Bash, PowerShell, or anything else that gets the job done. Ability to communicate technical findings clearly to both technical and non-technical stakeholders. An active interest in the evolving security landscape, continuously staying up to date with new techniques, vulnerabilities, and research as well as contributing knowledge back to the team Be yourself It's at the core of the company's and team's vision. You'll be able to truly be yourself; we'll recognise and value you for who you are and celebrate and reward your contributions to the business. We're committed to agile working, and we offer every colleague the opportunity to work in ways that suits them, their teams, and the tasks at hand. At BDO, we're committed to helping you achieve your personal and professional goals. We provide structured development frameworks, resources, and mentorship to support your growth-whether you're looking to deepen a specific skillset or broaden your expertise across domains. We'll align your client engagements with your learning objectives, giving you the chance to apply new skills, explore areas of interest, and gain practical experience. You won't be navigating this alone-our team culture emphasizes peer support, collaboration, and knowledge sharing on every project. We're in it together Mutual support and respect are one of BDO's core values and we're proud of our distinctive, people-centred culture. From informal success conversations to formal mentoring and coaching, we'll support you at every stage in your career, whatever your personal and professional needs. Our agile working framework helps us stay connected, bringing teams together where and when it counts so they can share ideas and help one another. At BDO, you'll always have access to the people and resources you need to do your best work. We know that collaboration is the key to creating value for the companies we work with and satisfying experiences for our colleagues, so we've invested in state-of-the-art collaboration spaces in our offices. BDO's people represent a wealth of knowledge and expertise, and we'll encourage you to build your network, work alongside others, and share your skills and experiences. With a range of multidisciplinary events and dedicated resources, you'll never stop learning at BDO. We're looking forward to the future At BDO, we help entrepreneurial businesses to succeed, fueling the UK economy. Our success is powered by our people, which is why we're always finding new ways to invest in you. Across the UK thousands of unique minds continue to come together to help companies we work with to achieve their ambitions. We've got a clear purpose, and we're confident in our future, because we're adapting and evolving to build on our strengths, ensuring we continue to find the right combination of global reach, integrity and expertise. We shape the future together with openness and clarity, because we believe in empowering people to think creatively about how we can do things better.
Dec 22, 2025
Full time
Ideas People Trust We're BDO. An accountancy and business advisory firm, providing the advice and solutions entrepreneurial organisations need to navigate today's changing world. We work with the companies that are Britain's economic engine - ambitious, entrepreneurially-spirited and high growth businesses that fuel the economy - and directly advise the owners and management teams that lead them. We'll broaden your horizons At our core, we believe that growth comes from exposure to diverse challenges. In this role, you'll have the opportunity to work across a wide range of engagements, thanks to the trust and scale of our clients. You will get hands-on experience with web application and API testing, Wireless assessments, Internal infrastructure tests, Mobile App security, Red and Purple team operations, Physical intrusion testing, hardware analysis, and more. No two projects are quite the same, and that's exactly how we like it. This variety allows our team to explore different domains, deepen existing strengths, and discover new areas of interest, all while solving real-world problems in live environments. Whether you're still shaping your focus or refining an existing specialty, you'll have space here to grow meaningfully. Manage risk for our clients to make them stronger for the future. Our Digital Services are designed to enable organisations to leverage our innovative methodologies, technology, and highly experienced professionals to manage their business risks most effectively. Working at BDO offers curious-minded people excellent exposure to all aspects of business strategy, operations and more. We're a dynamic team of internal auditors, accountants, technology, and business transformation experts with disciplines in finance, risk, projects and change, cyber and digital, amongst others. Our extensive network and depth of experience mean we work in a highly client-centric way, focused on providing a collaborative, tailor-made advisory service. Our team helps clients manage their business-critical threats, such as cyber events, and build resilient businesses capable of responding to internal and external events which may interrupt their operations. Being known for exceptional client service in our chosen markets, we put innovation and agility at the heart of everything we do. This is your chance to join a fast-paced, growing team and help shape the future of Digital at BDO. We'll help you succeed Leading organisations trust us because of the quality of our advice. That quality grows from a thorough understanding of their business, and that understanding comes from working closely with them and building long-lasting relationships. You'll be someone who is both comfortable working proactively and managing your own tasks, as well as confident collaborating with others and communicating regularly with senior managers, directors, and BDO's partners to help businesses effectively. You'll be encouraged to identify and draw attention to opportunities for enhancing our delivery and providing additional services to organisations we work with. We are seeking a highly skilled and experienced Senior Offensive Security penetration tester to join our dynamic team. This role involves conducting sophisticated penetration testing and red team engagements across various client systems and applications. The successful candidate will be instrumental in identifying vulnerabilities, enhancing client security postures, and leading initiatives to develop cutting-edge penetration testing methodologies and tools. Clients across industries and geographies, staying at the forefront of knowledge of the threat landscape, cyber defence best practices and regulatory expectations. Requirements: Strict Requirement: Strong certification in penetration testing such as OSCP (Offensive Security Certified Professional), CTM (Check Team Member), CRT (CREST Registered Tester) and OSWA (Offensive Security Web Attacks) or even better if you have Advanced certifications such as OSEP(OffSec Experience Penetration Tester), CCSAM (CREST Certified Simulated Attack Manager) and CTL (Check Team Leader). Solid experience in offensive security-whether through professional penetration testing, red teaming, bug bounty work, capture-the-flag competitions, or personal research projects. Proven ability to deliver impactful client engagements, demonstrating both technical depth and a practical understanding of risk. Deep knowledge of network protocols, different services, operating systems, different applications and how to break them. Proficiency in tools such as Metasploit, Burp Suite or other proxies such as Caido or Zap, Nessus, CobaltStrike or other C2 frameworks, etc. Bonus points for building your own tools, contributing to community projects, or chaining techniques creatively. Excellent problem-solving skills and a passion for ethical hacking that is persistent, curious, and know how to pivot when things do not go as planned. Experience coding and scripting custom tools in Python, Bash, PowerShell, or anything else that gets the job done. Ability to communicate technical findings clearly to both technical and non-technical stakeholders. An active interest in the evolving security landscape, continuously staying up to date with new techniques, vulnerabilities, and research as well as contributing knowledge back to the team Be yourself It's at the core of the company's and team's vision. You'll be able to truly be yourself; we'll recognise and value you for who you are and celebrate and reward your contributions to the business. We're committed to agile working, and we offer every colleague the opportunity to work in ways that suits them, their teams, and the tasks at hand. At BDO, we're committed to helping you achieve your personal and professional goals. We provide structured development frameworks, resources, and mentorship to support your growth-whether you're looking to deepen a specific skillset or broaden your expertise across domains. We'll align your client engagements with your learning objectives, giving you the chance to apply new skills, explore areas of interest, and gain practical experience. You won't be navigating this alone-our team culture emphasizes peer support, collaboration, and knowledge sharing on every project. We're in it together Mutual support and respect are one of BDO's core values and we're proud of our distinctive, people-centred culture. From informal success conversations to formal mentoring and coaching, we'll support you at every stage in your career, whatever your personal and professional needs. Our agile working framework helps us stay connected, bringing teams together where and when it counts so they can share ideas and help one another. At BDO, you'll always have access to the people and resources you need to do your best work. We know that collaboration is the key to creating value for the companies we work with and satisfying experiences for our colleagues, so we've invested in state-of-the-art collaboration spaces in our offices. BDO's people represent a wealth of knowledge and expertise, and we'll encourage you to build your network, work alongside others, and share your skills and experiences. With a range of multidisciplinary events and dedicated resources, you'll never stop learning at BDO. We're looking forward to the future At BDO, we help entrepreneurial businesses to succeed, fueling the UK economy. Our success is powered by our people, which is why we're always finding new ways to invest in you. Across the UK thousands of unique minds continue to come together to help companies we work with to achieve their ambitions. We've got a clear purpose, and we're confident in our future, because we're adapting and evolving to build on our strengths, ensuring we continue to find the right combination of global reach, integrity and expertise. We shape the future together with openness and clarity, because we believe in empowering people to think creatively about how we can do things better.
Ideas People Trust We're BDO. An accountancy and business advisory firm, providing the advice and solutions entrepreneurial organisations need to navigate today's changing world. We work with the companies that are Britain's economic engine - ambitious, entrepreneurially-spirited and high growth businesses that fuel the economy - and directly advise the owners and management teams that lead them. We'll broaden your horizons At our core, we believe that growth comes from exposure to diverse challenges. In this role, you'll have the opportunity to work across a wide range of engagements, thanks to the trust and scale of our clients. You will get hands-on experience with web application and API testing, Wireless assessments, Internal infrastructure tests, Mobile App security, Red and Purple team operations, Physical intrusion testing, hardware analysis, and more. No two projects are quite the same, and that's exactly how we like it. This variety allows our team to explore different domains, deepen existing strengths, and discover new areas of interest, all while solving real-world problems in live environments. Whether you're still shaping your focus or refining an existing specialty, you'll have space here to grow meaningfully. Manage risk for our clients to make them stronger for the future. Our Digital Services are designed to enable organisations to leverage our innovative methodologies, technology, and highly experienced professionals to manage their business risks most effectively. Working at BDO offers curious-minded people excellent exposure to all aspects of business strategy, operations and more. We're a dynamic team of internal auditors, accountants, technology, and business transformation experts with disciplines in finance, risk, projects and change, cyber and digital, amongst others. Our extensive network and depth of experience mean we work in a highly client-centric way, focused on providing a collaborative, tailor-made advisory service. Our team helps clients manage their business-critical threats, such as cyber events, and build resilient businesses capable of responding to internal and external events which may interrupt their operations. Being known for exceptional client service in our chosen markets, we put innovation and agility at the heart of everything we do. This is your chance to join a fast-paced, growing team and help shape the future of Digital at BDO. We'll help you succeed Leading organisations trust us because of the quality of our advice. That quality grows from a thorough understanding of their business, and that understanding comes from working closely with them and building long-lasting relationships. You'll be someone who is both comfortable working proactively and managing your own tasks, as well as confident collaborating with others and communicating regularly with senior managers, directors, and BDO's partners to help businesses effectively. You'll be encouraged to identify and draw attention to opportunities for enhancing our delivery and providing additional services to organisations we work with. We are seeking a highly skilled and experienced Senior Offensive Security penetration tester to join our dynamic team. This role involves conducting sophisticated penetration testing and red team engagements across various client systems and applications. The successful candidate will be instrumental in identifying vulnerabilities, enhancing client security postures, and leading initiatives to develop cutting-edge penetration testing methodologies and tools. Clients across industries and geographies, staying at the forefront of knowledge of the threat landscape, cyber defence best practices and regulatory expectations. Requirements: Strict Requirement: Strong certification in penetration testing such as OSCP (Offensive Security Certified Professional), CTM (Check Team Member), CRT (CREST Registered Tester) and OSWA (Offensive Security Web Attacks) or even better if you have Advanced certifications such as OSEP(OffSec Experience Penetration Tester), CCSAM (CREST Certified Simulated Attack Manager) and CTL (Check Team Leader). Solid experience in offensive security-whether through professional penetration testing, red teaming, bug bounty work, capture-the-flag competitions, or personal research projects. Proven ability to deliver impactful client engagements, demonstrating both technical depth and a practical understanding of risk. Deep knowledge of network protocols, different services, operating systems, different applications and how to break them. Proficiency in tools such as Metasploit, Burp Suite or other proxies such as Caido or Zap, Nessus, CobaltStrike or other C2 frameworks, etc. Bonus points for building your own tools, contributing to community projects, or chaining techniques creatively. Excellent problem-solving skills and a passion for ethical hacking that is persistent, curious, and know how to pivot when things do not go as planned. Experience coding and scripting custom tools in Python, Bash, PowerShell, or anything else that gets the job done. Ability to communicate technical findings clearly to both technical and non-technical stakeholders. An active interest in the evolving security landscape, continuously staying up to date with new techniques, vulnerabilities, and research as well as contributing knowledge back to the team Be yourself It's at the core of the company's and team's vision. You'll be able to truly be yourself; we'll recognise and value you for who you are and celebrate and reward your contributions to the business. We're committed to agile working, and we offer every colleague the opportunity to work in ways that suits them, their teams, and the tasks at hand. At BDO, we're committed to helping you achieve your personal and professional goals. We provide structured development frameworks, resources, and mentorship to support your growth-whether you're looking to deepen a specific skillset or broaden your expertise across domains. We'll align your client engagements with your learning objectives, giving you the chance to apply new skills, explore areas of interest, and gain practical experience. You won't be navigating this alone-our team culture emphasizes peer support, collaboration, and knowledge sharing on every project. We're in it together Mutual support and respect are one of BDO's core values and we're proud of our distinctive, people-centred culture. From informal success conversations to formal mentoring and coaching, we'll support you at every stage in your career, whatever your personal and professional needs. Our agile working framework helps us stay connected, bringing teams together where and when it counts so they can share ideas and help one another. At BDO, you'll always have access to the people and resources you need to do your best work. We know that collaboration is the key to creating value for the companies we work with and satisfying experiences for our colleagues, so we've invested in state-of-the-art collaboration spaces in our offices. BDO's people represent a wealth of knowledge and expertise, and we'll encourage you to build your network, work alongside others, and share your skills and experiences. With a range of multidisciplinary events and dedicated resources, you'll never stop learning at BDO. We're looking forward to the future At BDO, we help entrepreneurial businesses to succeed, fueling the UK economy. Our success is powered by our people, which is why we're always finding new ways to invest in you. Across the UK thousands of unique minds continue to come together to help companies we work with to achieve their ambitions. We've got a clear purpose, and we're confident in our future, because we're adapting and evolving to build on our strengths, ensuring we continue to find the right combination of global reach, integrity and expertise. We shape the future together with openness and clarity, because we believe in empowering people to think creatively about how we can do things better.
Dec 22, 2025
Full time
Ideas People Trust We're BDO. An accountancy and business advisory firm, providing the advice and solutions entrepreneurial organisations need to navigate today's changing world. We work with the companies that are Britain's economic engine - ambitious, entrepreneurially-spirited and high growth businesses that fuel the economy - and directly advise the owners and management teams that lead them. We'll broaden your horizons At our core, we believe that growth comes from exposure to diverse challenges. In this role, you'll have the opportunity to work across a wide range of engagements, thanks to the trust and scale of our clients. You will get hands-on experience with web application and API testing, Wireless assessments, Internal infrastructure tests, Mobile App security, Red and Purple team operations, Physical intrusion testing, hardware analysis, and more. No two projects are quite the same, and that's exactly how we like it. This variety allows our team to explore different domains, deepen existing strengths, and discover new areas of interest, all while solving real-world problems in live environments. Whether you're still shaping your focus or refining an existing specialty, you'll have space here to grow meaningfully. Manage risk for our clients to make them stronger for the future. Our Digital Services are designed to enable organisations to leverage our innovative methodologies, technology, and highly experienced professionals to manage their business risks most effectively. Working at BDO offers curious-minded people excellent exposure to all aspects of business strategy, operations and more. We're a dynamic team of internal auditors, accountants, technology, and business transformation experts with disciplines in finance, risk, projects and change, cyber and digital, amongst others. Our extensive network and depth of experience mean we work in a highly client-centric way, focused on providing a collaborative, tailor-made advisory service. Our team helps clients manage their business-critical threats, such as cyber events, and build resilient businesses capable of responding to internal and external events which may interrupt their operations. Being known for exceptional client service in our chosen markets, we put innovation and agility at the heart of everything we do. This is your chance to join a fast-paced, growing team and help shape the future of Digital at BDO. We'll help you succeed Leading organisations trust us because of the quality of our advice. That quality grows from a thorough understanding of their business, and that understanding comes from working closely with them and building long-lasting relationships. You'll be someone who is both comfortable working proactively and managing your own tasks, as well as confident collaborating with others and communicating regularly with senior managers, directors, and BDO's partners to help businesses effectively. You'll be encouraged to identify and draw attention to opportunities for enhancing our delivery and providing additional services to organisations we work with. We are seeking a highly skilled and experienced Senior Offensive Security penetration tester to join our dynamic team. This role involves conducting sophisticated penetration testing and red team engagements across various client systems and applications. The successful candidate will be instrumental in identifying vulnerabilities, enhancing client security postures, and leading initiatives to develop cutting-edge penetration testing methodologies and tools. Clients across industries and geographies, staying at the forefront of knowledge of the threat landscape, cyber defence best practices and regulatory expectations. Requirements: Strict Requirement: Strong certification in penetration testing such as OSCP (Offensive Security Certified Professional), CTM (Check Team Member), CRT (CREST Registered Tester) and OSWA (Offensive Security Web Attacks) or even better if you have Advanced certifications such as OSEP(OffSec Experience Penetration Tester), CCSAM (CREST Certified Simulated Attack Manager) and CTL (Check Team Leader). Solid experience in offensive security-whether through professional penetration testing, red teaming, bug bounty work, capture-the-flag competitions, or personal research projects. Proven ability to deliver impactful client engagements, demonstrating both technical depth and a practical understanding of risk. Deep knowledge of network protocols, different services, operating systems, different applications and how to break them. Proficiency in tools such as Metasploit, Burp Suite or other proxies such as Caido or Zap, Nessus, CobaltStrike or other C2 frameworks, etc. Bonus points for building your own tools, contributing to community projects, or chaining techniques creatively. Excellent problem-solving skills and a passion for ethical hacking that is persistent, curious, and know how to pivot when things do not go as planned. Experience coding and scripting custom tools in Python, Bash, PowerShell, or anything else that gets the job done. Ability to communicate technical findings clearly to both technical and non-technical stakeholders. An active interest in the evolving security landscape, continuously staying up to date with new techniques, vulnerabilities, and research as well as contributing knowledge back to the team Be yourself It's at the core of the company's and team's vision. You'll be able to truly be yourself; we'll recognise and value you for who you are and celebrate and reward your contributions to the business. We're committed to agile working, and we offer every colleague the opportunity to work in ways that suits them, their teams, and the tasks at hand. At BDO, we're committed to helping you achieve your personal and professional goals. We provide structured development frameworks, resources, and mentorship to support your growth-whether you're looking to deepen a specific skillset or broaden your expertise across domains. We'll align your client engagements with your learning objectives, giving you the chance to apply new skills, explore areas of interest, and gain practical experience. You won't be navigating this alone-our team culture emphasizes peer support, collaboration, and knowledge sharing on every project. We're in it together Mutual support and respect are one of BDO's core values and we're proud of our distinctive, people-centred culture. From informal success conversations to formal mentoring and coaching, we'll support you at every stage in your career, whatever your personal and professional needs. Our agile working framework helps us stay connected, bringing teams together where and when it counts so they can share ideas and help one another. At BDO, you'll always have access to the people and resources you need to do your best work. We know that collaboration is the key to creating value for the companies we work with and satisfying experiences for our colleagues, so we've invested in state-of-the-art collaboration spaces in our offices. BDO's people represent a wealth of knowledge and expertise, and we'll encourage you to build your network, work alongside others, and share your skills and experiences. With a range of multidisciplinary events and dedicated resources, you'll never stop learning at BDO. We're looking forward to the future At BDO, we help entrepreneurial businesses to succeed, fueling the UK economy. Our success is powered by our people, which is why we're always finding new ways to invest in you. Across the UK thousands of unique minds continue to come together to help companies we work with to achieve their ambitions. We've got a clear purpose, and we're confident in our future, because we're adapting and evolving to build on our strengths, ensuring we continue to find the right combination of global reach, integrity and expertise. We shape the future together with openness and clarity, because we believe in empowering people to think creatively about how we can do things better.
