Big Red Recruitment

We are seeking a Penetration Tester to join a growing Offensive Security team within a specialist cyber security consultancy. This is an exciting opportunity to join at a time of significant investment and growth, helping to strengthen existing testing services while contributing to the development of new capabilities across areas such as Red Teaming, Operational Technology (OT), Threat-Led Security Testing and emerging technologies. The successful candidate will play a key role in delivering penetration testing engagements, supporting process improvement initiatives, and helping to build a scalable and mature testing function. This position offers excellent opportunities for professional development, certification support and future progression into senior or leadership positions. JOB ROLE - PENETRATION TESTER LOCATION - LONDON (OCCASIONAL ON-SITE WORK) SALARY - £40,000-£45,000 + BENEFITS Key Responsibilities Conduct vulnerability assessments and penetration testing engagements across: Internal infrastructure External infrastructure Web applications Networks and systems Perform configuration and build reviews using recognised security frameworks and benchmarks. Produce clear, concise and actionable technical reports detailing findings, risk ratings and remediation recommendations. Utilise industry-standard security testing tools including Burp Suite, Nessus, Metasploit, Nmap, Wireshark and related technologies. Work directly with clients and stakeholders, presenting findings and providing remediation guidance where required. Support the continuous improvement of testing methodologies, processes and documentation. Assist in creating and maintaining standard operating procedures, testing guides and knowledge-sharing materials. Collaborate with wider cyber security teams to support service development and research initiatives. Contribute to research and development activities across new security testing disciplines and technologies. Participate in occasional out-of-hours and on-site engagements where client requirements dictate. Required Skills & Experience Minimum 2 years' experience in penetration testing, vulnerability assessment or offensive security. Experience conducting: Internal and external infrastructure testing Web application security testing Security assessments and audits Vulnerability identification and validation Strong understanding of networking concepts, protocols, routing and firewall technologies. Experience working with Windows, Linux and macOS environments. Familiarity with security assessment tools such as: Burp Suite Nessus Metasploit Nmap Wireshark Experience producing high-quality technical reports and client-facing documentation. Excellent communication and stakeholder management skills. Strong organisational skills and ability to manage workload independently. Comfortable working in a consultancy or client-facing environment. Eligible to obtain UK Security Clearance. Desirable Skills & Certifications CREST CRT, CPSA, CCT or equivalent certification. OSCP or similar offensive security qualification. Cyber Scheme accreditation. CHECK Team Member status.

Aug 06, 2026

Full time

We are seeking a Penetration Tester to join a growing Offensive Security team within a specialist cyber security consultancy. This is an exciting opportunity to join at a time of significant investment and growth, helping to strengthen existing testing services while contributing to the development of new capabilities across areas such as Red Teaming, Operational Technology (OT), Threat-Led Security Testing and emerging technologies. The successful candidate will play a key role in delivering penetration testing engagements, supporting process improvement initiatives, and helping to build a scalable and mature testing function. This position offers excellent opportunities for professional development, certification support and future progression into senior or leadership positions. JOB ROLE - PENETRATION TESTER LOCATION - LONDON (OCCASIONAL ON-SITE WORK) SALARY - £40,000-£45,000 + BENEFITS Key Responsibilities Conduct vulnerability assessments and penetration testing engagements across: Internal infrastructure External infrastructure Web applications Networks and systems Perform configuration and build reviews using recognised security frameworks and benchmarks. Produce clear, concise and actionable technical reports detailing findings, risk ratings and remediation recommendations. Utilise industry-standard security testing tools including Burp Suite, Nessus, Metasploit, Nmap, Wireshark and related technologies. Work directly with clients and stakeholders, presenting findings and providing remediation guidance where required. Support the continuous improvement of testing methodologies, processes and documentation. Assist in creating and maintaining standard operating procedures, testing guides and knowledge-sharing materials. Collaborate with wider cyber security teams to support service development and research initiatives. Contribute to research and development activities across new security testing disciplines and technologies. Participate in occasional out-of-hours and on-site engagements where client requirements dictate. Required Skills & Experience Minimum 2 years' experience in penetration testing, vulnerability assessment or offensive security. Experience conducting: Internal and external infrastructure testing Web application security testing Security assessments and audits Vulnerability identification and validation Strong understanding of networking concepts, protocols, routing and firewall technologies. Experience working with Windows, Linux and macOS environments. Familiarity with security assessment tools such as: Burp Suite Nessus Metasploit Nmap Wireshark Experience producing high-quality technical reports and client-facing documentation. Excellent communication and stakeholder management skills. Strong organisational skills and ability to manage workload independently. Comfortable working in a consultancy or client-facing environment. Eligible to obtain UK Security Clearance. Desirable Skills & Certifications CREST CRT, CPSA, CCT or equivalent certification. OSCP or similar offensive security qualification. Cyber Scheme accreditation. CHECK Team Member status.

Customer Success Manager

OneClickComply

LocationSunderland, United Kingdom# Customer Success Manager at OneClickComplyLocationSunderland, United KingdomSalary£32500 - £60000 /yearJob TypeFull-timeDate PostedApril 30th, 2026Apply NowOneClickComply is changing how businesses think about cybersecurity compliance. We've built a platform that automates the hard parts - technical control implementation, policy generation, continuous monitoring, and real-time audit evidence - so that achieving certifications like ISO 27001, SOC 2, Cyber Essentials, and CIS v8 takes weeks instead of months. We work with a growing network of audit and enablement partners and serve clients across every industry who need to prove they take security seriously.We're a small, fast-moving team where your ideas don't get lost in layers of hierarchy. If you've ever been frustrated by how unnecessarily painful compliance can be, you'll understand exactly why we exist. The Opportunity This role puts you right at the heart of the client experience. You'll own the post-sale relationship across every channel - live chat, phone, video calls, and email - making sure every customer gets real, measurable value from our platform and feels genuinely supported from their very first onboarding call through to renewal and beyond.You'll be the person our clients turn to when they need help navigating the platform, understanding where they are on their compliance journey, or figuring out what comes next. When they need deeper technical guidance, you'll bring in our Security Compliance Specialists. When they're ready for penetration testing or a formal audit, you'll make the introductions to the right enablement partners. You're the thread that ties the whole experience together.This isn't a passive support role. You'll have genuine influence over how we onboard, engage, and grow our client base - and over the direction of the customer success function as we scale. There's also a real financial incentive to grow accounts: with a base salary of £32,500 plus uncapped commission on upsells, your OTE will be in the region of £60,000. What You'll Be Doing Owning the client relationship across every touchpoint. You'll manage a portfolio of B2B accounts, providing responsive, high-quality support via live chat, telephone, email, and scheduled video calls. You'll be the consistent, trusted point of contact that clients know they can rely on - whether it's a quick question on chat or a detailed walkthrough over the phone. Running onboarding that sets clients up for success . You'll lead onboarding calls and implementation sessions for every new client, walking them through platform configuration, control setup, dashboards, and integrations. You'll build and refine onboarding playbooks so that every client's first experience is smooth, structured, and confidence-building. Working hand in hand with our Security Compliance Specialists . You'll be the first point of contact for clients, triaging their needs and bringing in our Compliance Advisory team when deeper technical or framework-specific expertise is required. You'll stay close to those conversations so you always understand where each client is on their journey and can follow up effectively. Connecting clients with the right enablement partners . When clients are ready for penetration testing, vulnerability assessments, formal audits, or other specialist services, you'll make warm introductions to our network of trusted enablement partners - including penetration testers, auditors, and certification bodies. You'll coordinate scheduling, manage expectations on both sides, and make sure the handoff is seamless. Delivering webinars and group enablement . You'll plan and host regular webinars covering platform features, compliance best practices, framework updates, and tips for getting the most from OneClickComply. These sessions will help scale your impact beyond one-to-one interactions and position us as a trusted voice in the compliance space. Conducting regular check-ins and business reviews . You'll run quarterly business reviews with key accounts, track adoption metrics and health scores, and make sure every client has a clear path to their compliance goals. You'll stay ahead of churn risk by spotting disengagement early and acting on it. Driving upsell and expansion revenue . You'll identify opportunities to expand accounts - whether that's additional frameworks, more seats, or premium services - and you'll be rewarded for it. Commission on successful upsells forms a meaningful part of your compensation, so the better your clients do, the better you do. Being the voice of the customer internally . You'll work closely with product, engineering, and sales to relay what clients are asking for, where they're getting stuck, and what would make the biggest difference to their experience. Your insights will directly shape the roadmap. Writing support articles and client-facing content . You'll build out our knowledge base by writing clear, practical support articles, how-to guides, and FAQs that help clients self-serve and get to value faster. You'll also produce walkthrough videos, best-practice materials, and webinar follow-up content - reducing inbound support volume and giving every client the resources to succeed on their own terms. What We're Looking For You'll have at least 2 years of experience in a customer success, account management, or client-facing role within a B2B SaaS environment. This is a firm requirement - we need someone who already understands the rhythms of SaaS onboarding, adoption, renewal cycles, and the metrics that matter.You're confident and personable on the phone and on camera. You're the kind of person who can jump from a live chat conversation to an onboarding call to a webinar and bring the same energy and clarity to each. You build relationships quickly and earn trust by being organised, proactive, and genuinely helpful.You're a strong writer. Whether it's a support article, a follow-up email, or a webinar script, you can take something complex and make it clear and practical without dumbing it down.You're comfortable having strategic conversations with senior stakeholders and equally happy rolling up your sleeves for a hands-on platform walkthrough with an end user. You've got a track record of identifying and closing upsell or expansion opportunities, and you're motivated by a compensation model that rewards you for growing accounts.Experience in cybersecurity, compliance, GRC, or RegTech is a strong plus but not essential - if you're a quick learner with a genuine curiosity about the space, we'll get you up to speed. Familiarity with frameworks like ISO 27001, SOC 2, or Cyber Essentials is a bonus.You'll thrive here if you're naturally data-minded, comfortable using CRM and CS tools to manage your book of business, and energised by the challenge of building processes in a company that's still defining them. Compensation £32,500 base salary plus uncapped commission on upsell and expansion revenue, with on-target earnings (OTE) in the region of £60,000. Your earning potential grows as your accounts grow. Why Join Us You'll be joining at a stage where you can genuinely shape how customer success works at OneClickComply. Your understanding of what clients need won't just improve retention - it will directly influence how the product evolves. There's no red tape, no death by committee. Just a team that cares about making compliance less painful for everyone. The Benefits We've put together a benefits package that we think goes well beyond what you'd expect from a company our size. Your health and wellbeing come first. You and your family get 24/7 access to GP appointments and prescriptions, unlimited telephone, face-to-face, and video counselling, virtual physiotherapy, and unlimited eye testing. You'll also have access to virtual gym classes and discounted

Jul 30, 2026

Full time

LocationSunderland, United Kingdom# Customer Success Manager at OneClickComplyLocationSunderland, United KingdomSalary£32500 - £60000 /yearJob TypeFull-timeDate PostedApril 30th, 2026Apply NowOneClickComply is changing how businesses think about cybersecurity compliance. We've built a platform that automates the hard parts - technical control implementation, policy generation, continuous monitoring, and real-time audit evidence - so that achieving certifications like ISO 27001, SOC 2, Cyber Essentials, and CIS v8 takes weeks instead of months. We work with a growing network of audit and enablement partners and serve clients across every industry who need to prove they take security seriously.We're a small, fast-moving team where your ideas don't get lost in layers of hierarchy. If you've ever been frustrated by how unnecessarily painful compliance can be, you'll understand exactly why we exist. The Opportunity This role puts you right at the heart of the client experience. You'll own the post-sale relationship across every channel - live chat, phone, video calls, and email - making sure every customer gets real, measurable value from our platform and feels genuinely supported from their very first onboarding call through to renewal and beyond.You'll be the person our clients turn to when they need help navigating the platform, understanding where they are on their compliance journey, or figuring out what comes next. When they need deeper technical guidance, you'll bring in our Security Compliance Specialists. When they're ready for penetration testing or a formal audit, you'll make the introductions to the right enablement partners. You're the thread that ties the whole experience together.This isn't a passive support role. You'll have genuine influence over how we onboard, engage, and grow our client base - and over the direction of the customer success function as we scale. There's also a real financial incentive to grow accounts: with a base salary of £32,500 plus uncapped commission on upsells, your OTE will be in the region of £60,000. What You'll Be Doing Owning the client relationship across every touchpoint. You'll manage a portfolio of B2B accounts, providing responsive, high-quality support via live chat, telephone, email, and scheduled video calls. You'll be the consistent, trusted point of contact that clients know they can rely on - whether it's a quick question on chat or a detailed walkthrough over the phone. Running onboarding that sets clients up for success . You'll lead onboarding calls and implementation sessions for every new client, walking them through platform configuration, control setup, dashboards, and integrations. You'll build and refine onboarding playbooks so that every client's first experience is smooth, structured, and confidence-building. Working hand in hand with our Security Compliance Specialists . You'll be the first point of contact for clients, triaging their needs and bringing in our Compliance Advisory team when deeper technical or framework-specific expertise is required. You'll stay close to those conversations so you always understand where each client is on their journey and can follow up effectively. Connecting clients with the right enablement partners . When clients are ready for penetration testing, vulnerability assessments, formal audits, or other specialist services, you'll make warm introductions to our network of trusted enablement partners - including penetration testers, auditors, and certification bodies. You'll coordinate scheduling, manage expectations on both sides, and make sure the handoff is seamless. Delivering webinars and group enablement . You'll plan and host regular webinars covering platform features, compliance best practices, framework updates, and tips for getting the most from OneClickComply. These sessions will help scale your impact beyond one-to-one interactions and position us as a trusted voice in the compliance space. Conducting regular check-ins and business reviews . You'll run quarterly business reviews with key accounts, track adoption metrics and health scores, and make sure every client has a clear path to their compliance goals. You'll stay ahead of churn risk by spotting disengagement early and acting on it. Driving upsell and expansion revenue . You'll identify opportunities to expand accounts - whether that's additional frameworks, more seats, or premium services - and you'll be rewarded for it. Commission on successful upsells forms a meaningful part of your compensation, so the better your clients do, the better you do. Being the voice of the customer internally . You'll work closely with product, engineering, and sales to relay what clients are asking for, where they're getting stuck, and what would make the biggest difference to their experience. Your insights will directly shape the roadmap. Writing support articles and client-facing content . You'll build out our knowledge base by writing clear, practical support articles, how-to guides, and FAQs that help clients self-serve and get to value faster. You'll also produce walkthrough videos, best-practice materials, and webinar follow-up content - reducing inbound support volume and giving every client the resources to succeed on their own terms. What We're Looking For You'll have at least 2 years of experience in a customer success, account management, or client-facing role within a B2B SaaS environment. This is a firm requirement - we need someone who already understands the rhythms of SaaS onboarding, adoption, renewal cycles, and the metrics that matter.You're confident and personable on the phone and on camera. You're the kind of person who can jump from a live chat conversation to an onboarding call to a webinar and bring the same energy and clarity to each. You build relationships quickly and earn trust by being organised, proactive, and genuinely helpful.You're a strong writer. Whether it's a support article, a follow-up email, or a webinar script, you can take something complex and make it clear and practical without dumbing it down.You're comfortable having strategic conversations with senior stakeholders and equally happy rolling up your sleeves for a hands-on platform walkthrough with an end user. You've got a track record of identifying and closing upsell or expansion opportunities, and you're motivated by a compensation model that rewards you for growing accounts.Experience in cybersecurity, compliance, GRC, or RegTech is a strong plus but not essential - if you're a quick learner with a genuine curiosity about the space, we'll get you up to speed. Familiarity with frameworks like ISO 27001, SOC 2, or Cyber Essentials is a bonus.You'll thrive here if you're naturally data-minded, comfortable using CRM and CS tools to manage your book of business, and energised by the challenge of building processes in a company that's still defining them. Compensation £32,500 base salary plus uncapped commission on upsell and expansion revenue, with on-target earnings (OTE) in the region of £60,000. Your earning potential grows as your accounts grow. Why Join Us You'll be joining at a stage where you can genuinely shape how customer success works at OneClickComply. Your understanding of what clients need won't just improve retention - it will directly influence how the product evolves. There's no red tape, no death by committee. Just a team that cares about making compliance less painful for everyone. The Benefits We've put together a benefits package that we think goes well beyond what you'd expect from a company our size. Your health and wellbeing come first. You and your family get 24/7 access to GP appointments and prescriptions, unlimited telephone, face-to-face, and video counselling, virtual physiotherapy, and unlimited eye testing. You'll also have access to virtual gym classes and discounted

Penetration Tester

Claranet City, Leeds

Essential Roles & Responsibilities As a Penetration Tester at Claranet, you will able to deliver you own web application tests and through training and partnering, you will be involved in a full range of testing work from mobile app and infrastructure testing to social engineering and Red Team exercises. Key Responsibilities: Undertaking web and mobile application testing and infrastructure testing engagements Using the opportunities provided by the business to improve skills and capabilities into all areas of testing Working with key clients providing bespoke consultancy, analysis and expertise Collaborating with other Claranet Business Units on large client digital transformation projects Delivering targeted research and development in line with direction of the business If not achieved already, working towards CREST qualifications; CPSA, CRT and CCT Essential Technical: Have a good understanding of web & mobile application and infrastructure testing and methodologies Able to manually and proficiently exploit web application and network infrastructure vulnerabilities Have a logical and time-conscious approach to report writing Have a working knowledge of common programming languages such as C, C++, C#, Java Have experience of at least one scripting language such as Ruby, Python or Perl Essential Experience: Delivering chargeable web app testing engagements Providing remediation advice Producing accurate technical reports Working under pressure of deadlines and structuring workload accordingly Problem-solving, helping others to understand complex ideas Essential General: Client facing, able to confidently and professionally represent the company Must be self-motivated and able to work in an independent manner as well as part of a team Excellent written and oral communications skills In Addition, The Following Are Highly Desirable: Security clearance (or eligibility for clearance) CTM or CTL status CISSP, CISA, CEH, OSCP or equivalent reputable information security certifications Familiarity with testing cloud environments Public speaking experience Full UK driving license

Jul 30, 2026

Full time

Essential Roles & Responsibilities As a Penetration Tester at Claranet, you will able to deliver you own web application tests and through training and partnering, you will be involved in a full range of testing work from mobile app and infrastructure testing to social engineering and Red Team exercises. Key Responsibilities: Undertaking web and mobile application testing and infrastructure testing engagements Using the opportunities provided by the business to improve skills and capabilities into all areas of testing Working with key clients providing bespoke consultancy, analysis and expertise Collaborating with other Claranet Business Units on large client digital transformation projects Delivering targeted research and development in line with direction of the business If not achieved already, working towards CREST qualifications; CPSA, CRT and CCT Essential Technical: Have a good understanding of web & mobile application and infrastructure testing and methodologies Able to manually and proficiently exploit web application and network infrastructure vulnerabilities Have a logical and time-conscious approach to report writing Have a working knowledge of common programming languages such as C, C++, C#, Java Have experience of at least one scripting language such as Ruby, Python or Perl Essential Experience: Delivering chargeable web app testing engagements Providing remediation advice Producing accurate technical reports Working under pressure of deadlines and structuring workload accordingly Problem-solving, helping others to understand complex ideas Essential General: Client facing, able to confidently and professionally represent the company Must be self-motivated and able to work in an independent manner as well as part of a team Excellent written and oral communications skills In Addition, The Following Are Highly Desirable: Security clearance (or eligibility for clearance) CTM or CTL status CISSP, CISA, CEH, OSCP or equivalent reputable information security certifications Familiarity with testing cloud environments Public speaking experience Full UK driving license

CHECK Team Leader Penetration Tester

Oscar Technology

CHECK Team Leader Penetration Tester Security Cleared £80-90k Remote We're working with a leading cyber security consultancy looking to grow their penetration testing capability with the addition of a CHECK Team Leader (CTL) This is an opportunity to join one of the UK's largest CHECK-accredited, security-cleared testing environments, delivering high-impact testing across complex and highly secure customer estates. The role is primarily remote, with occasional onsite client engagements as required. Salary: £80-90,000 DOE Work Structure: Remote (with UK client visits) Security Clearance: Active or previously held DV clearance is essential. The Role: You'll be responsible for delivering high-quality penetration testing across a range of environments, while acting as a senior technical presence within the team. Engagements will include: Infrastructure penetration testing Web application testing Internal and external network testing Active Directory / privilege escalation assessments Cloud security testing Red team style activities and security assessments CHECK-based testing within highly secure environments You'll also be involved in scoping engagements, supporting clients through remediation discussions, and contributing to the continued growth and quality of the testing practice. What We're Looking For: Current CHECK Team Leader (CTL) certification Active DV clearance OR previously held DV clearance Strong hands-on penetration testing experience across infrastructure and applications Experience delivering testing within secure/government or high-assurance environments Strong client-facing communication skills Ability to write high-quality technical reports and communicate risk clearly Background working within a consultancy or dedicated security testing environment preferred Additional certifications such as CRT/CCT, OSCP, OSCE or similar are highly advantageous. If this sounds like you, apply now for immediate consideration. Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy. To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

May 18, 2026

Full time

CHECK Team Leader Penetration Tester Security Cleared £80-90k Remote We're working with a leading cyber security consultancy looking to grow their penetration testing capability with the addition of a CHECK Team Leader (CTL) This is an opportunity to join one of the UK's largest CHECK-accredited, security-cleared testing environments, delivering high-impact testing across complex and highly secure customer estates. The role is primarily remote, with occasional onsite client engagements as required. Salary: £80-90,000 DOE Work Structure: Remote (with UK client visits) Security Clearance: Active or previously held DV clearance is essential. The Role: You'll be responsible for delivering high-quality penetration testing across a range of environments, while acting as a senior technical presence within the team. Engagements will include: Infrastructure penetration testing Web application testing Internal and external network testing Active Directory / privilege escalation assessments Cloud security testing Red team style activities and security assessments CHECK-based testing within highly secure environments You'll also be involved in scoping engagements, supporting clients through remediation discussions, and contributing to the continued growth and quality of the testing practice. What We're Looking For: Current CHECK Team Leader (CTL) certification Active DV clearance OR previously held DV clearance Strong hands-on penetration testing experience across infrastructure and applications Experience delivering testing within secure/government or high-assurance environments Strong client-facing communication skills Ability to write high-quality technical reports and communicate risk clearly Background working within a consultancy or dedicated security testing environment preferred Additional certifications such as CRT/CCT, OSCP, OSCE or similar are highly advantageous. If this sounds like you, apply now for immediate consideration. Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy. To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.

4 jobs found

Modal Window