or Cambridge Salary: £70,000 - £120,000 (depending on experience and clearance) We are looking for a Full Stack Developer to join a growing public sector team delivering secure, high-impact digital services across Defence & Security. This is a unique opportunity to use your development expertise to help solve real-world challenges for government and national security clients. … collaborative and supportive engineering team, working alongside technical leads, project managers, and stakeholders to deliver robust and scalable solutions. What you'll be doing: Designing, developing and deploying secure, high-performing web applications for government clients Working across the full software development lifecycle, from requirements through to production Building responsive user … interfaces using modern front-end technologies Developing scalable server-side functionality with appropriate frameworks and languages Creating and maintaining RESTful APIs for integration across platforms Following securecoding practices and supporting compliance with government security standards Conducting security reviews and supporting remediation of vulnerabilities Translating technical requirements into delivery plans and code Communicating effectively with both technical More ❯
Abingdon, Oxfordshire, United Kingdom Hybrid / WFH Options
Halliburton
provide Technical Excellence Leadership for more than one team, providing expert guidance to software developers and support staff. Provides guidance to staff on application security standards, securecoding practices, and secure architecture designs. Provides a strong technical focus in product planning for a complete software system. Requires completion of an undergraduate degree in Computer Science More ❯
Oxford, Oxfordshire, United Kingdom Hybrid / WFH Options
Nominet
event-driven architecture. Refactor and migrate legacy applications for scalability and resilience. Build and maintain CI/CD pipelines and containerised deployments (Kubernetes, Docker). Ensure applications are secure, observable (logging, metrics, monitoring), and performant. Write clean, tested, maintainable code in modern programming languages. Collaborate with product managers, QA, and platform/SRE teams to deliver reliable services. … Oracle + SQL). Proficiency in Java is essential, with Go, Python, or similar languages Experience with front-end frameworks (ideally Angular, React, or similar). Securecoding practices and identity/secrets management. Strong version control (Git) and testing practices (integration, automation). Problem-solving, collaboration, and growth mindset. Nice to have: Containerisation and orchestration (Docker More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Holland & Barrett International Limited
execute the Holland & Barrett application security strategy. Collaborate with both tech and non-tech teams to integrate security principles into the early stages of product design and development. Secure SLDC: Establish a secure Software Development Lifecycle (SDLC) that enables development teams to deliver high-quality applications quickly while implementing essential controls for software integrity, authenticity, and … Own the creation and maintenance of tailored security standards and guidelines, developing reusable resources for various development teams. Team Support: Provide guidance and support to development teams on secure software production practices and flaw mitigation … strategies. Key Requirements: Essential: 5+ years of experience in application security, with at least 3+ years in software development. Strong understanding of application security concepts, including securecoding practices, threat modeling, vulnerability management, and access control mechanisms. Experience with AWS, Kubernetes, Service Mesh, and API Security (including authentication and authorization). Proficiency in programming languages such as More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Reed Technology
transforming the recruitment landscape through AI-driven, human-centered technology. This is a pivotal role where you will lead a team of 5 Senior Developers, focusing on hands-on coding and providing technical leadership underneath the guidance of the Head of AI & Technology. Day-to-day of the role: Lead and mentor a team of 5 Senior Developers, maintaining … a hands-on approach with coding and problem-solving. Oversee the end-to-end delivery of features, ensuring the software is scalable, speedy, and of high quality. Architect, develop, and maintain core components of our SaaS platform: Backend: Python, PostgreSQL Frontend: TypeScript, NextJS/NodeJS Integrate AI tools, APIs, and data pipelines to enhance platform intelligence. Promote engineering best … practices such as testing, CI/CD, and securecoding standards. Conduct code reviews and provide technical mentorship. Collaborate with the Head of AI and Technology to align development priorities with business objectives. Foster a culture of collaboration, continuous learning, and high performance. Troubleshoot and resolve complex issues, ensuring platform reliability and uptime. Required Skills & Qualifications: 10+ More ❯
Holborn, London, England, United Kingdom Hybrid / WFH Options
Reed
transforming the recruitment landscape through AI-driven, human-centered technology. This is a pivotal role where you will lead a team of 5 Senior Developers, focusing on hands-on coding and providing technical leadership underneath the guidance of the Head of AI & Technology. Day-to-day of the role: Lead and mentor a team of 5 Senior Developers, maintaining … a hands-on approach with coding and problem-solving. Oversee the end-to-end delivery of features, ensuring the software is scalable, speedy, and of high quality. Architect, develop, and maintain core components of our SaaS platform: Backend: Python, PostgreSQL Frontend: TypeScript, NextJS/NodeJS Integrate AI tools, APIs, and data pipelines to enhance platform intelligence. Promote engineering best … practices such as testing, CI/CD, and securecoding standards. Conduct code reviews and provide technical mentorship. Collaborate with the Head of AI and Technology to align development priorities with business objectives. Foster a culture of collaboration, continuous learning, and high performance. Troubleshoot and resolve complex issues, ensuring platform reliability and uptime. Required Skills & Qualifications: 10+ More ❯
Employment Type: Full-Time
Salary: £90,000 - £110,000 per annum, Inc benefits
London, South East, England, United Kingdom Hybrid / WFH Options
Reed.co.uk
Lead Fullstack Developer to guide, inspire, and work alongside our team of Senior Developers. This is a hands-on leadership role: you'll spend the majority of your time coding (around 70%), while also providing technical direction, mentoring, and ensuring the team consistently ships high-quality software at speed. If you thrive in a startup-style environment, have proven … something meaningful from the ground up, this is the role for you. Key Responsibilities Lead a team of 5 senior developers, setting technical direction while staying hands-on with coding and problem-solving. Own the end-to-end delivery of features, ensuring speed, scalability, and quality are never compromised. Architect, develop, and maintain core SaaS platform components across the …/NodeJS Ensure smooth integration of AI tools, APIs, and data pipelines to enhance platform intelligence. Champion engineering best practices, including testing, CI/CD, and securecoding standards. Conduct regular code reviews and provide technical mentorship. Reporting to the Head of AI and Technology to align development priorities with business objectives. Foster a culture of collaboration More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing, and deployment (App Store, Google Play). Understanding of securecoding practices. Excellent written and verbal communication skills For more information, contact Katie at Matched Group. Senior Full Stack Developer/Senior Full Stack Engineer/Full Stack Developer/ More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing, and deployment (App Store, Google Play). Understanding of securecoding practices. Excellent written and verbal communication skills For more information, contact Katie at Matched Group. Senior Full Stack Developer/Senior Full Stack Engineer/Full Stack Developer/ More ❯
Milton Keynes, Buckinghamshire, England, United Kingdom Hybrid / WFH Options
Connexa
Java Developer to help deliver an award-winning AI innovation toolset supporting public sector data transformation. This role sits at the heart of a full-stack team building secure, scalable applications used across UK government departments. If you have a passion for backend engineering, cloud deployment, and delivering secure software at scale - this is a standout … opportunity to apply your skills in a meaningful way. Responsibilities: Develop robust back-end services using Java and Spring Boot Build secure … APIs and contribute to CI/CD automation and cloud-based deployment Collaborate with front-end developers and cross-functional teams on scalable system design Implement securecoding practices, data processing, and system testing Optimise application performance and maintain high-quality standards across environments What we're looking for: 6+ years' experience in Java-based development within More ❯
Leeds, West Yorkshire, United Kingdom Hybrid / WFH Options
FPSG
Industries/Vlocity is essential) FPSG have a fantastic opportunity to join a large-scale digital transformation programme aimed at uniting multiple internal business units under a new, secure, cloud-native digital platform. Ideal for a hands-on Security Engineer who enjoys embedding security into the development lifecycle and working with modern tooling and cloud environments. .Net Azure … is essential. The successful Security Engineer's responsibilities will include: Analysing new feature code to identify and mitigate security risks Collaborating with development teams to implement securecoding practices and remediation strategies Driving improvements in security maturity frameworks such as DSOMM, including hands-on delivery (code, configuration, documentation, tooling) Designing, building, operate, monitoring secure solutions … skills will include: Demonstrated experience in software security within cloud-first or hybrid environments (Azure preferred) A deep understanding of the Salesforce Industries aka Vlocity, with experience supporting secure integration and development Strong knowledge of networking protocols (e.g. TCP/IP, UDP, HTTP/3) and cloud network architecture (VPNs, subnets, zones) Experience with API security and integration More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing, and deployment (App Store, Google Play). Understanding of securecoding practices. Excellent written and verbal communication skills For more information, contact Katie at Matched Group. Senior Full Stack Developer/Senior Full Stack Engineer/Full Stack Developer/ More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing, and deployment (App Store, Google Play). Understanding of securecoding practices. Excellent written and verbal communication skills For more information, contact Katie at Matched Group. Senior Full Stack Developer/Senior Full Stack Engineer/Full Stack Developer/ More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing, and deployment (App Store, Google Play). Understanding of securecoding practices. Excellent written and verbal communication skills For more information, contact Katie at Matched Group. Senior Full Stack Developer/Senior Full Stack Engineer/Full Stack Developer/ More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing, and deployment (App Store, Google Play). Understanding of securecoding practices. Excellent written and verbal communication skills For more information, contact Katie at Matched Group. Senior Full Stack Developer/Senior Full Stack Engineer/Full Stack Developer/ More ❯
Milton Keynes, Buckinghamshire, England, United Kingdom Hybrid / WFH Options
Connexa
digital transformation, is looking for a Senior Software Engineer to join a high-performing team delivering AI-powered data platforms to government departments. You'll contribute to a secure full-stack platform enabling sensitive data redaction and digital archiving. This is a chance to build innovative, scalable services that make a real-world impact across central government. Responsibilities … Design and develop secure, scalable full stack software solutions Work across 30% front-end development (React, TypeScript) and 70% back-end … Java, Spring Boot) Develop APIs, manage relational databases (PostgreSQL/MySQL), and deliver clean DevOps pipelines Collaborate with stakeholders including architects, government partners, and academia Implement securecoding practices and maintain high standards in testing and documentation What we're looking for: 4+ years of experience in full stack development Expertise in Java, Spring Boot, and front More ❯
Central London, London, United Kingdom Hybrid / WFH Options
Halian Technology Limited
Lead AppSec Engineer to join their established team. Youll be instrumental in embedding security into every stage of the software development lifecycleguiding engineers, shaping best practices, and driving secure, scalable solutions across our platform. Key Responsibilities: Security Advisory : Serve as the go-to expert for application security across engineering teamsproviding hands-on guidance, resolving concerns, and fostering a … security-first mindset. DevSecOps Enablement : Promote and implement securedevelopment practices across CI/CD pipelines, secrets and key management, dependency management, and secure design. Vulnerability Management : Lead vulnerability remediation effortstriaging findings, prioritizing risks, and partnering with teams to deliver effective, pragmatic fixes. Tooling & Automation : Integrate security tools (e.g., SAST, DAST, SCA, secrets scanning) into developer … practices, DevSecOps methodologies, GitHub workflows, and Terraform. Deep understanding of cloud security principles in AWS and Azure, particularly around IAM, secrets management, and networking. Proficient in securecoding practices, threat modeling, and vulnerability remediation. Familiar with a range of security tooling including static and dynamic analysis, software composition analysis, and container security. Excellent communication and collaboration skillsable More ❯
Newton Abbot, Devon, England, United Kingdom Hybrid / WFH Options
Reed
be the perfect opportunity for you. Day-to-day of the role: Develop bespoke software and middleware solutions to support and grow core business operations. Deliver high-quality, securecode using modern best practices. Collaborate with stakeholders to translate business requirements into robust technical solutions. Troubleshoot and resolve issues across development environments. Mentor junior team members, promoting best … Excellent problem-solving skills and attention to detail Strong commercial experience in professional PHP development Strong understanding of object-oriented programming and SOLID principles Knowledge of securecoding practices (e.g., OWASP) Strong experience with modern PHP frameworks (preferably Laravel or Symfony) Familiarity with relational databases (MySQL) and writing performant queries Comfortable working with Git, Composer, and modern More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing, and deployment (App Store, Google Play). Understanding of securecoding practices. Excellent written and verbal communication skills For more information, contact Katie at Matched Group. Senior Full Stack Developer/Senior Full Stack Engineer/Full Stack Developer/ More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Matched Group
with cloud message APIs and usage of push notifications. Knowledge of CI/CD pipelines, code signing, and deployment (App Store, Google Play). Understanding of securecoding practices. Excellent written and verbal communication skills For more information, contact Katie at Matched Group. Senior Full Stack Developer/Senior Full Stack Engineer/Full Stack Developer/ More ❯
Abingdon, Oxfordshire, United Kingdom Hybrid / WFH Options
Halliburton
and processes used to design, code, test, trouble-shoot, document engineering systems applications. Develops test strategies used in the automated regression testing of these systems. Follows securecoding practices, performs triaging of security issues, and implements fixes to deliver secure applications. Familiar with common software vulnerabilities and leading practices to mitigate. Should have some experience More ❯
Chester, Cheshire, North West, United Kingdom Hybrid / WFH Options
Searchability (UK) Ltd
team responsible for developing and maintaining a highly available, in-house software platform. Our work spans modern APIs, scalable services, and engaging user interfaces. We value quality engineering, secure design, and continuous improvement across the stack. Who We're Seeking: We're on the lookout for a Senior Software Developer with strong backend skills and experience across a … modern cloud-native tech stack. You'll help design and implement robust, secure systems, write clean and testable code, and support key architectural decisions. You'll also collaborate with cross-functional teams, contribute to API development, and mentor junior developers. There's potential to lead a small team and take ownership of a stream of work depending on … vacancy only. We look forward to hearing from you! Key Skills: PHP, Symfony, MySQL, REST APIs, Microservices, JavaScript, React, Java, AWS, Docker, CI/CD, Git, SecureCoding, Test-Driven Development, Distributed Systems, Infrastructure as Code (CDK/Terraform), Linux/Bash More ❯
Ipswich, Suffolk, East Anglia, United Kingdom Hybrid / WFH Options
Reed Technology
Be the Tech Expert : Act as the go-to specialist for development technologies, especially within the Microsoft Cloud ecosystem. Promote Best Practices : Lead by example in securecoding, TDD, documentation, and quality assurance. Explore Emerging Tech What experience you will need to have: Leadership Experience : Looking for someone with experience mentoring/managing software development teams. Technical More ❯
Ipswich, Suffolk, United Kingdom Hybrid / WFH Options
Reed Technology
Be the Tech Expert : Act as the go-to specialist for development technologies, especially within the Microsoft Cloud ecosystem. Promote Best Practices : Lead by example in securecoding, TDD, documentation, and quality assurance. Explore Emerging Tech What experience you will need to have: Leadership Experience : Looking for someone with experience mentoring/managing software development teams. Technical More ❯
consultancy that specialise in solutions for Pensions and Investment Managers. As a Principal Software Engineer/Architect you will lead the design and development of scalable, robust and secure software solutions, playing a … critical role in shaping the technical direction of products balancing architectural design patterns with pragmatic solution design and guiding engineering teams through implementation. You'll ensure securecoding and best practices are being followed and create appropriate technical documentation. There's approximately a 50/50 split between architecture and coding, you'll become a member More ❯