26 jobs found

Picture your next role as a Senior Backend Developer You walk into a team where most developers stayed for years. People know the platform, trust each other, and care about the work. No chaos. No constant churn. A steady engineering team that builds solid software. You focus on backend engineering. C#, .NET, Azure. You work on cloud systems that run across the business. The team improves platforms, builds new services, and keeps raising the standard. Senior developers here solve problems, share knowledge, and take ownership of the platform. Your role: Build backend services using C# and .NET Develop APIs and system integrations Deploy and run services in Azure Improve performance and reliability across the platform Contribute to CI/CD and automation Work with engineers, product managers, and UX Why Developers stay there: Chance to work with experienced developers who care about quality Contribute to real improvements across production systems Stable environment with long serving engineers 34 hour working week Quick Interview process, 2 stage interview. If you want a stable engineering team, strong technical work, and space to grow as a backend developer, apply now . Senior .NET Backend Developer, C#, .NET, Azure, Winsford, 1 day in office, Salary up to 75,000

Location : Hybrid - UK Contract Type: Permanent Hours : Full time Salary : Competitive COMPANY OVERVIEW MOBKOI is a fast-growing mobile company headquartered in London, with offices across central Europe, US and Asia. We use the latest in mobile ad technology to help premium brands effectively reach and engage with their clients' audiences.Bringing to market the most selective site list of premium global and local publishers enabling brands to be selective of where their ads are going to run and thus ensuring brand safety. MOBKOI prides itself on offering full transparency, bespoke creative builds and local market coordination. We are part of The Brandtech Group, formerly known as You & Mr Jones, working with partners developing the best technology across the globe. ROLE OVERVIEW As a Backend Software Engineer (Junior-Mid Level) - Programmatic, you will contribute to the development and evolution of MOBKOI's programmatic advertising platform. You will work closely with experienced engineers on backend systems that power real-time bidding (RTB), campaign delivery, and large-scale integrations with SSPs and DSPs.This role is well suited to engineers early in their career who want to deepen their expertise in distributed systems, low-latency services, and cloud-based infrastructure, while gaining exposure to the programmatic advertising ecosystem. You will be supported through mentorship, code reviews, and progressive ownership of backend components. RESPONSIBILITIES • Contribute to the development and improvement of MOBKOI's programmatic backend systems, including components of the real-time bidding (RTB) pipeline.• Support the design and implementation of scalable, reliable, and high-performance services handling large volumes of traffic.• Work alongside senior engineers to help evolve system architecture while balancing performance, cost efficiency, and reliability.• Assist in monitoring system performance and contribute to initiatives that optimise infrastructure usage and operational cost.• Participate in diagnosing and resolving issues related to distributed systems, including latency, availability, and scaling challenges.• Implement backend components following best practices in fault tolerance, load balancing, and resilient design.• Develop an understanding of the programmatic advertising ecosystem, including SSPs, DSPs, bidding flows, and ad exchanges.• Contribute to discussions around technology selection, tooling, and build-vs-buy decisions.• Collaborate with product, data, and business teams to ensure technical solutions align with business needs.• Actively participate in code reviews, technical discussions, and continuous improvement initiatives. KEY SKILLS & COMPETENCIES • Experience in backend software development, gained through a first professional role, internship, or apprenticeship.• Solid engineering fundamentals with Go (or another backend language with a strong willingness to learn Go).• Interest in or exposure to distributed systems and high-traffic environments.• Understanding of core concepts around scalability, reliability, and high availability.• Familiarity with cloud platforms such as AWS or GCP.• Awareness of cost-efficient engineering practices and infrastructure optimisation.• Curiosity about the programmatic advertising landscape and how technical systems support business outcomes.• Strong collaboration skills and the ability to communicate clearly within a cross-functional team. BEHAVIOURS This role operates in a fast-moving, high-standards environment and requires someone who is motivated to learn, take ownership, and deliver quality work. The role holder is expected to manage their time effectively, adapt to change, and contribute positively to team and business outcomes.The role offers autonomy and is suited to someone who is comfortable balancing independent work with cross-functional collaboration. What we're looking for: • Motivation to contribute to the growth and success of the business• A proactive, adaptable mindset with the ability to learn quickly• Strong ownership and accountability for outcomes• Clear and professional communication with a range of stakeholdersYou may also have experience in the following: Backend Software Engineer, Junior Backend Engineer, Mid-Level Backend Developer, Go Developer (Golang Engineer), Software Engineer - Backend, Programmatic Engineer, AdTech Engineer, RTB Engineer (Real-Time Bidding Engineer), Distributed Systems Engineer, Cloud Backend Engineer (AWS / GCP), Platform Engineer - AdTech, API Developer (Backend), High-Performance Systems Engineer, Programmatic Advertising Developer, Software Engineer - AdTechREF-

White Collar Factory (95009), United Kingdom, London, London Senior Software Development Engineer - Velocity Black UK Velocity Black by Capital One harnesses the power of artificial intelligence, the warmth of human experts and the convenience of the latest interfaces to help high-performance people actualize the full potential of their lives. It's concierge, reimagined for the digital age. By harnessing 24/7 chat, AI, and mobile payments, we help our customers do more and be more in the digital age. From access to the hottest restaurants to guaranteed upgrades at the world's finest resorts. Make a custom request through the app and you will be chatting to our team within 1 minute, 24/7/365. What unites us are the values we share: the relentless pursuit and celebration of excellence, actualising the full potential of our lives, and impacting the world in a positive way. We are looking for talented software engineers to join our global Velocity Black by Capital One engineering team, with the opportunity to specialise in frontend, backend or work in a full stack capacity. As a Senior Software Development Engineer, you'll have the opportunity to be on the forefront of driving a major transformation with the marrying of these two innovative companies. Joining a startup deeply invested in technology with Capital One's entrepreneurial spirit and customer-first, tech-led culture, creates an environment where engineers can continue to disrupt the status quo to develop best-in-class customer experiences for the digital age. Y ou will work in a small but passionate team, and have a great deal of autonomy. You should be self-driven, willing to take ownership, ask the right questions and seek knowledge when necessary. If you think innovatively, and like to embrace bleeding edge technology, with a pragmatic approach, you will enjoy working here. The service we offer and build upon is unlike anything ever built before, and our product is rapidly evolving. Velocity Black is our core product, built in React Native and offering exclusive access and unbeatable word-wide service across Travel, Experiences, Luxury Goods and Dining. Our internal and bespoke request management platform, Gravity, is built with React and Node.js micro services, virtually augmenting our expert customer service agents with AI, delivering the unrivalled personal service our members expect and love. Explore our tech stack: What you'll do Deliver end to end functionality from ideation to delivery focused on the functionality surrounding the ability to make a request and message back and forth while helping to define and adopt best practices Work in a fast-paced, collaborative technical environment Utilise programming languages and tools like React Native, React, Node.js, JavaScript, TypeScript, micro services, AI, ML, open source frameworks, DevOps, large data sets, and more Perform software development leveraging a test-driven development pattern Collaborate with digital product managers, and deliver robust cloud-based solutions that drive powerful experiences to help high-performance people actualize the full potential of their lives Collaborate with and across Agile teams to design, develop, test, implement, and support technical solutions in full-stack development tools and technologies Share your passion for staying on top of tech trends, experimenting with and learning new technologies, participating in internal & external technology communities, mentoring other members of the engineering community What we're looking for Experience with influencing technical decisions with a tech team in an agile environment Proven experience in software development using JavaScript or TypeScript Experience with testing software (automated tests or Test Driven Development) Previous experience working with AWS, GCP, Microsoft Azure or another cloud service Have a passion for continued learning of the latest JavaScript and ES versions and trends What you'll get to learn (any previous experience would be advantageous) An in-depth understanding and experience working with the cloud/AWS and the opportunities that it brings Solving real world problems and being comfortable working in a complex regulated environment Where and how you'll work This is a permanent position based in our London office. We have a hybrid working model, so you'll be based in our offices 3 days a week on Tuesdays, Wednesdays and Thursdays, and can work from home on Monday and Friday. Many of our associates have flexible working arrangements, and we're open to talking about an arrangement that works for you. What's in it for you Bring us all this - and you'll be well rewarded with a role contributing to the roadmap of an organisation committed to transformation We offer high performers strong and diverse career progression, investing heavily in developing great people through our Capital One University training programmes (and appropriate external providers) Immediate access to our core benefits including pension scheme, bonus, generous holiday entitlement and private medical insurance - with flexible benefits available including season-ticket loans, cycle to work scheme and enhanced parental leave What you should know about how we recruit We pride ourselves on hiring the best people, not the same people. Building diverse and inclusive teams is the right thing to do and the smart thing to do. We want to work with top talent: whoever you are, whatever you look like, wherever you come from. We know it's about what you do, not just what you say. That's why we make our recruitment process fair and accessible. And we offer benefits that attract people at all ages and stages. We also partner with organisations including the Women in Finance and Race At Work Charters, Stonewall and upReach to find people from every walk of life and help them thrive with us. We have a whole host of internal networks and support groups you could be involved in, to name a few: REACH - Race Equality and Culture Heritage group focuses on representation, retention and engagement for associates from minority ethnic groups and allies OutFront - to provide LGBTQ+ support for all associates Mind Your Mind - signposting support and promoting positive mental wellbeing for all Women in Tech - promoting an inclusive environment in tech EmpowHER - network of female associates and allies focusing on developing future leaders, particularly for female talent in our industry Capital One is committed to diversity in the workplace. If you require a reasonable adjustment, please contact All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment. For technical support or questions about Capital One's recruiting process, please send an email to Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Who We Are At Capital One, we're building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding. Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

White Collar Factory (95009), United Kingdom, London, London Lead Software Development Engineer - Services About this role Capital One's mission is to change banking for good by bringing humanity, ingenuity and simplicity to banking. Sitting at the core of such values is our Software Engineering department whose primary role is to be an enabler of our ambitions. Capital One is looking for a Senior Software Development Engineer to join a backend team, based in our London office on a hybrid basis. Our Engineers are people who lead by example, build strong and valuable relationships and have the confidence to influence at all levels. We are proud of who we are and what we do and want you to join us at this particularly exciting time at Capital One. What you'll do You will lead a team or cross-functional squad in the delivery of complex and ambiguous projects that support a broader business outcome You will take end-to-end responsibility for technical design, implementation, and operational considerations Collaborate with engineers, architects, product owners, and stakeholders to ensure successful project outcomes You will play a crucial role in supporting the elevation of engineering enablement, excellence, and experience across the broader engineering community You will collaborate and contribute to the development and dissemination of standardised and sustainable best practices, tools, patterns, and frameworks that enhance the productivity and quality of engineering efforts business-wide Your focus is on a major portion of existing or new team software (e.g., significant component, set of features, mid-size application or service) You'll work to achieve the goals and vision shared by Product Management and your Tribe Leadership Innovate within your team, initiative area and contribute within your technical domain What we're looking for Proven experience in technical leadership, including leading a team or cross-functional squad Proven experience working in both backend services and mobile technologies Exceptional programming skills and knowledge of building APIs using modern OO languages preferably Java, SOLID principles, SOA, HTTP and REST Experience with AWS and strong understanding of cloud-based development Extensive, demonstrable knowledge of designing architectures that are secure and perform at scale You're able to effectively communicate and work collaboratively across engineering to maximise inner-sourcing opportunities and reduce waste Proven experience ability to deliver high quality applications at scale An advocate for quality and the ability to support the team, leveraging approaches such as Pair Programming, TDD and BDD Where and how you'll work This is a permanent position and will be based in our London office. We have a hybrid working model which gives you flexibility to work from our offices and from home. We're big on collaboration and connection, so you'll be based in our London office 3 days a week on Tuesdays, Wednesdays and Thursdays. What's in it for you Bring us all this - and you'll be handsomely rewarded with a role contributing to the product roadmap for an organisation committed to transformation We're continuing our journey into the public cloud and have problems of scale, security, availability and performance for you to help solve We love continuous learning and that's why we give you 10% of your time to work on cutting edge innovative projects that shape the way we will work in the future We offer high performers strong and diverse career progression, investing heavily in developing great people through our Capital One University training programmes (and appropriate external providers) Immediate access to our core benefits including pension scheme, bonus, generous holiday entitlement and private medical insurance - with flexible benefits available including season-ticket loans, cycle to work scheme and enhanced parental leave Open-plan workspaces and facilities designed to inspire and support you. Our Nottingham head-office has a fully-serviced gym, subsidised restaurant, mindfulness and music rooms. In London, you can heighten your mood with a run on our rooftop running track or an espresso at the Workshop Coffee café What you should know about how we recruit We are committed to creating a level playing field and seek to create teams that are representative of our customers and the communities we serve. We'd love to hear from you if you identify with a typically under-represented group in our industry and are particularly keen to hear from women and ethnic minority candidates. We pride ourselves on hiring the best people, not the same people. Building diverse and inclusive teams is the right thing to do and the smart thing to do. We want to work with top talent: whoever you are, whatever you look like, wherever you come from. We know it's about what you do, not just what you say. That's why we make our recruitment process fair and accessible. And we offer benefits that attract people at all ages and stages. We also partner with organisations including the Women in Finance and Race At Work Charters, Stonewall and upReach to find people from every walk of life and help them thrive with us. We have a whole host of internal networks and support groups you could be involved in, to name a few: REACH - Race Equality and Culture Heritage group focuses on representation, retention and engagement for associates from minority ethnic groups and allies OutFront - to provide LGBTQ+ support for all associates Mind Your Mind - signposting support and promoting positive mental wellbeing for all Women in Tech - promoting an inclusive environment in tech EmpowHER - network of female associates and allies focusing on developing future leaders, particularly for female talent in our industry Capital One is committed to diversity in the workplace. If you require a reasonable adjustment, please contact All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment. For technical support or questions about Capital One's recruiting process, please send an email to Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Who We Are At Capital One, we're building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding. Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

Full Stack Technical Lead - Remote - £65k-£70k (DOE) I'm working with an exciting organisation that is looking for a Full Stack Technical Lead to take ownership of modern cloud-based applications and lead development within a defined architectural framework. This is an excellent opportunity for a senior full-stack engineer who enjoys remaining hands-on while influencing architecture, enforcing engineering standards, and driving secure development practices across a high-performing team. Key Responsibilities You will be responsible for: Designing and developing scalable backend services using .NET 10.0.2 and ASP.NET Core Web APIs Building and maintaining Angular 21 front-end applications using DevExpress DevExtreme v25 components Leading secure, Azure-native cloud implementations Building and maintaining Infrastructure as Code using Bicep Implementing authentication and role-based access via Azure Entra ID Integrating Azure Key Vault for secure secret management across environments Writing and maintaining unit and integration tests (NUnit and ViTest) Ensuring all development aligns with OWASP secure coding standards Contributing to CI/CD pipeline improvements and secure deployment practices Participating in architecture and technical design reviews Collaborating with UI/UX teams using Figma prototypes Maintaining high-quality technical documentation Tech Stack & Experience Core technologies: .NET 10 / ASP.NET Core Entity Framework Core RESTful API design / OpenAPI / Swagger Angular 21 (mandatory) TypeScript / RxJS DevExpress DevExtreme v25 (mandatory) Microsoft Azure (App Services, SQL, Storage) Azure Entra ID Azure Key Vault Infrastructure as Code (Bicep preferred) CI/CD pipelines (Azure DevOps or equivalent) Bitbucket (Git) What They're Looking For 7+ years' commercial software engineering experience 2+ years operating as a Technical Lead Strong full-stack expertise within the Microsoft ecosystem Proven experience with modern Angular (v15+) Hands-on Azure architecture and deployment experience Experience implementing Infrastructure as Code Strong understanding of secure enterprise application development Experience working in regulated or security-sensitive environments Solid grasp of RESTful API design and authentication patterns Ability to balance hands-on delivery with technical leadership responsibilities Desirable Experience Multi-environment Azure architecture design Angular performance optimisation Designing role-based access control systems Cloud cost optimisation practices Exposure to penetration testing and secure SDLC processes Experience contributing to architectural decision-making Salary & Benefits £65k-£70k (depending on experience) Remote working Structured architecture standards and modern tooling Exposure to enterprise-scale Azure environments Opportunity to influence engineering best practice and security standards Why This Role? This is a standout opportunity for a technical leader who wants real ownership of architecture, cloud infrastructure, and development standards - while staying close to the code. You'll join a technically mature environment where automation, security, and scalability are core priorities, not afterthoughts. If you're open to a confidential discussion, apply now and I'll be in touch. 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.

Who We Are Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities. BCG was the pioneer in business strategy when it was founded in 1963. Today, we help clients with total transformation-inspiring complex change, enabling organizations to grow, building competitive advantage, and driving bottom-line impact. To succeed, organizations must blend digital and human capabilities. Our diverse, global teams bring deep industry and functional expertise and a range of perspectives to spark change. BCG delivers solutions through leading-edge management consulting along with technology and design, corporate and digital ventures-and business purpose. We work in a uniquely collaborative model across the firm and throughout all levels of the client organization, generating results that allow our clients to thrive. What You'll Do As a Full Stack Developer & Power Platform Engineer you will design, build, and enhance applications that support BCG's internal business operations. You'll work hands-on across front-end, back-end, and integration layers while contributing to solution architecture and ensuring alignment with BCG's technology standards. Key Responsibilities Design, build, and maintain full stack applications using .NET Core, C#, REST APIs, and Power Platform applications Develop scalable and secure backend services and responsive front-end interfaces Build and maintain Power Platform solutions including Power Apps, Power Automate, and Dataverse Integrate Power Platform solutions with custom services and enterprise APIs Translate business requirements into technical designs considering scalability, performance, and maintainability Contribute to architectural decisions, design reviews, and technical documentation Implement CI/CD pipelines and automate deployment workflows Work with Azure cloud, containers, and serverless components Collaborate closely with product owners, UX, analysts, and engineering teams in Agile sprints Support production environments with root-cause analysis and continuous improvement You're good at Designing clean, maintainable, and well-tested code Balancing hands-on development with architectural thinking Communicating complex technical topics clearly Understanding business processes and translating them into technical solutions Documenting systems and solutions thoroughly What You'll Bring 7-10+ years of experience in full stack engineering Strong expertise in .NET Core, C#, React or Angular Hands-on experience with Power Platform and Dataverse Understanding of solution architecture, integration patterns, and cloud architecture Experience with Azure cloud services and microservices patterns Knowledge of SQL and familiarity with NoSQL CI/CD, Git-based workflows, and automation experience Strong communication, collaboration, and problem solving skills Who You'll Work With You will work within a dynamic engineering team across multiple geographies, collaborating with business stakeholders, architects, and platform teams. This role offers the opportunity to directly shape internal tools used globally across BCG. Boston Consulting Group is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, age, religion, sex, sexual orientation, gender identity / expression, national origin, disability, protected veteran status, or any other characteristic protected under national, provincial, or local law, where applicable, and those with criminal histories will be considered in a manner consistent with applicable state and local laws. BCG is an E - Verify Employer. Click here for more information on E-Verify.

Applied AI Engineer London (hybrid, three days per week onsite).Competitive salary between £140,000 and £150,000. This is an exciting opportunity to join an elite AI product team operating with the pace of a startup and the scale of a major software group. You will build production AI systems end to end, deploy into real customer environments, and accelerate your learning faster than almost anywhere else in the market. The Company They are an AI product incubator embedded within a large, well-established B2B software investment environment. Their mission is to partner with portfolio companies to design, build, and ship AI products that have immediate commercial impact. Working in focused sprints, they deliver production systems into businesses across fintech, enterprise SaaS, and B2B services. The team is deliberately small, high-performing, and structured to give engineers real ownership from day one. The Role Build full-stack, production AI applications from first architecture through to customer-facing delivery. Develop backend, infrastructure, and frontend components using Python, FastAPI, React, TypeScript, and cloud platforms. Deploy GenAI and LLM-based systems, including evaluation, observability, and agent-based workflows. Operate in cross-functional pods embedded into portfolio companies, typically for multi-month build cycles. Work with technical and commercial leaders to define product direction and ship quickly in high-velocity environments. Translate complex AI capabilities into scalable, reliable, revenue-generating products. Your Skills and Experience Strong commercial experience delivering end-to-end AI products into production environments. Broad engineering capability across backend, cloud infrastructure, and frontend development. Hands-on experience with GenAI, LLM deployment, and production-grade ML tooling. Comfortable working in ambiguous, fast-moving settings such as startups or high-intensity engineering teams. Confident communicating with both technical and non-technical stakeholders, including senior leadership. A proactive, 0-to-1 mindset with the ability to set direction rather than wait for specifications. What They Offer Competitive base salary. Meaningful carry and long-term upside. Hybrid working across London or New York, with flexibility to engage with portfolio teams. Significant ownership, rapid progression, and direct exposure to C-Suite stakeholders. The opportunity to build multiple AI products across different industries, accelerating your development in a way few roles can match. How to Apply If you are excited by the chance to build real AI products at scale, please apply with your CV.

Location: Tring (Predominately onsite with flex where project allows) Duration: 4-6 month contract IR35: Outside IR35 Role detaills: Our client, a leading entity in the Defence & Security sector, is seeking a highly motivated Senior Software Engineer to join them on a contract basis - The role will encompass the design and development of a web-based control and monitoring dashboard application for an antenna terminal system. Key Responsibilities: Design and develop a web-based control and monitoring dashboard application for an antenna terminal system. Engage in the full design life cycle from specifications generation to thorough regression testing of pre-production units. Build and maintain React/Next.js frontend applications and NestJS backend services within a shared pnpm monorepo environment. Integrate user-facing components with backend services using various communication protocols (REST, WebSockets, SNMP, MQTT, etc.). Develop the GUI using a mix of off-the-shelf UI components and custom modules. Ensure the UI code is well-structured, scalable, and testable, conforming to UX/architecture guidelines. Ensure compliance with modern accessibility standards and usability best practices across browsers and devices. Contribute to software architecture, project planning, and specification documentation. Job Requirements: Proficiency in frontend technologies including HTML5, CSS3, JavaScript, TypeScript, React, and Next.js. Experience with backend services using NestJS and related TypeScript tooling. Understanding of various communication protocols like TCP/IP, HTTP, and SNMP. Experience with containerization tools such as Docker. Ability to design, implement, integrate, and verify software applications on Linux and Windows OS. Proven product development experience from concept through deployment. Familiarity with networked applications that require low-latency and high-availability. Preferred Experience: Knowledge of communication systems design. Understanding of various communication protocols, including RS-232, I2C, CAN, SPI, USB, TCP, and UDP over IP. Familiarity with databases, web servers (e.g. Apache), and UI/UX design. Interested? Apply today via the link provided!

SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base. The company has a worldwide impact in the marine sector by leading the next generation of Maritime Domain Awareness technologies "MDA", products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners. SRT is an exciting company where high-quality results are rewarded. We are ambitious and constantly seek to innovate in order to deliver better products and services to our customers. We strive to make SRT a rewarding and challenging place to work, where talented, hard-working individuals have the opportunity to make a real impact across the marine industry. Role overview of our Senior Software Tester As a Senior Software Tester you will work on the continued build of our Marine Domain Awareness (MDA) platform which is used to create an operational picture of maritime activity. Our systems ingest large volumes of streaming data from both satellite and terrestrial, along with other sensor sources. You will play a key role in validating the behaviour of a distributed, event-driven system operating on real-time maritime data. Testing activities include both automation and manual testing. The role of Senior Software Tester role is a hybrid working position based from our Cardiff office, you will be required to attend office 1 day per week as per the team's requirements. How We Work Sprint Work Developmenttickets move across the Jira board through the delivery workflow Tickets reaching the Test stage are assigned to a tester Testers validate functionality using a mix of automated and manual testing approaches QA Release Cycles Every six weeks, we conduct a dedicated two-week QA phase where: Testers pause normal sprint board work The focus shifts to release-wide regression testing Both manual and automated test suites are executed to validate the full platform Senior Software Tester - Responsibilities (not exhaustive): Test new features and improvements delivered during sprint cycles Design, implement, and maintain automated tests, along with the execution of manual exploratory and regression testing when required Validate message-driven workflows across distributed services Test REST API endpoints supporting CRUD operations within the system Participate in release regression cycles and help validate production-ready builds Investigate issues, reproduce defects, and provide clear bug reports Work closely with developers and product teams to clarify requirements and ensure testability Senior Software Tester - Required Skills and Experience Strong experience as a software tester or QA engineer Experience testing complex distributed systems or backend platforms Experience creating automated tests Familiarity with tools such as Postman (or similar API testing tools) Ability to write test scripts using one or more scripting languages (e.g. Python, JavaScript, Bash) Ability to understand system behaviour through logs, messages, and APIs Strong debugging and problem-solving skills Experience working within Agile / Scrum teams Familiarity with Jira or similar issue-tracking tools Company Benefits Highly Competitive Salary and Pension Hybrid Working Development opportunities SRT Marine Systems plc are an equal opportunity employer. We are committed to creating an inclusive working environment for all employees and actively encourage applications from all sectors of the community.