126 to 149 of 149 Application Security Jobs in England

make your mark. In this role, we value diverse perspectives and encourage you to apply even if you don't meet every qualification listed. Your Impact Design and implement application architecture that is scalable, maintainable, observable, and high-performing. Write clean, efficient, and well-documented Ruby/JavaScript (or other backend language) code. Conduct code reviews, review architecture, and … contribute to engineering best practices. Identify and optimise performance bottlenecks across systems. Collaborate closely with cross-functional teams to deliver impactful features. Ensure application security, implementing safeguards against vulnerabilities. What You'll Bring Proven experience delivering large-scale systems in production. Strong grounding in Domain-Driven Design, API-first architecture, and software design patterns. Proficiency in JavaScript (React … an Equal Opportunity Employer. We're dedicated to hiring diverse talent - which includes individuals with different backgrounds, abilities, identities and experiences. If you require any reasonable adjustments throughout your application process, please speak to your Talent Partner or contact the team on , and we'll do all we can to support you. More ❯

with Flutter Type: Contract (6 Months) Location: UK (Fully Remote) MUST HAVES: Proficient in Flutter/React Native/MAUI , Mobile App Payment Services , strong API consumption, and App security best practices. Work in an agile team on high-impact national services. Immediate start! This is an urgent vacancy with a deadline where the hiring manager is shortlisting for More ❯

with Flutter Type: Contract (6 Months) Location: UK (Fully Remote) MUST HAVES: Proficient in Flutter/React Native/MAUI , Mobile App Payment Services , strong API consumption, and App security best practices. Work in an agile team on high-impact national services. Immediate start! This is an urgent vacancy with a deadline where the hiring manager is shortlisting for More ❯

in PHP 7.4 or higher. Experience in/understanding of object-oriented design & patterns. Experience in creating database driven applications. Experience in version control systems. Good understanding of web application security. Good understanding of testing. Passion of open-source technology. More ❯

It's about building cutting-edge solutions that set new industry standards. You'll lead the way in CloudSec, AppSec, and DevSecOps, shaping core security functions that push boundaries and embrace the future. This tech-driven innovator is changing the game. By integrating AI and VR into data visualisation, they've created a groundbreaking platform that's mobile, adaptable … and works seamlessly across multiple realities. Their rapid growth and expanding enterprise client base prove their vision is working. And they're just getting started. This role heads up security for the entire company. You'll be at the forefront of strategy, execution, and team leadership, owning and enhancing security operations, risk management, and incident response. You'll … create airtight security policies and frameworks to future-proof the organisation while leading and mentoring a team of talented security engineers to deliver exceptional results. Your leadership will help shape a high-performing, motivated, and engaged security function. You'll be someone with proven experience leading security functions in dynamic, fast-paced environments and bring expertise More ❯

change and clarity Qualifications Recommended: The ideal candidate will have a two-year degree or the equivalent in work experience and preferably 3 years' Customer Support and/or security experience. The successful candidate will have the ability to communicate effectively with corporate customers, possess an understanding of the Onboarding process and demonstrate a vision for the future of … handle difficult and sensitive situations involving the most critical and politically charged customer situations. Minimum Experience: A minimum of 1 year of hands-on experience deploying, configuring and administering security solutions, ideally MDE/MDO/MCAS/MDI/M365 Defender in large organizations of more than 1,000 managed devices/users, covering the following areas MDE … the Microsoft Defender MDE service by deploying an ATP agent profile using an onboard endpoint. Set Microsoft Defender MDE configuration profiles (including endpoint protection and device restriction). Set Security Center settings to personalize how Microsoft Defender MDE addresses the customer needs. Simulations and tutorials (like practice scenarios, fake malware, and automated investigations). Reporting and threat analytics. MDO More ❯

change and clarity Qualifications Recommended: The ideal candidate will have a two-year degree or the equivalent in work experience and preferably 3 years' Customer Support and/or security experience. The successful candidate will have the ability to communicate effectively with corporate customers, possess an understanding of the Onboarding process and demonstrate a vision for the future of … handle difficult and sensitive situations involving the most critical and politically charged customer situations. Minimum Experience: A minimum of 1 year of hands-on experience deploying, configuring and administering security solutions, ideally MDE/MDO/MCAS/MDI/M365 Defender in large organizations of more than 1,000 managed devices/users, covering the following areas MDE … the Microsoft Defender MDE service by deploying an ATP agent profile using an onboard endpoint. Set Microsoft Defender MDE configuration profiles (including endpoint protection and device restriction). Set Security Center settings to personalize how Microsoft Defender MDE addresses the customer needs. Simulations and tutorials (like practice scenarios, fake malware, and automated investigations). Reporting and threat analytics. MDO More ❯

MS SECURITY SME DEFENDER ITALIAN FLUENT A MUST 100%% 100% REMOTE UK UP TO £80K DOE + BENEFITS (28 DAYS HOLIDAY AND 3% PENSION) Our client the largest IT solutions provider in the world are seeking to recruit a MS Defender Engineer and you will bring the below skill set: Your specific responsibilities will include: FLUENT IN ITALIAN AND … change and clarity Qualifications Recommended: The ideal candidate will have a two-year degree or the equivalent in work experience and preferably 3 years’ Customer Support and/or security experience. The successful candidate will have the ability to communicate effectively with corporate customers, possess an understanding of the Onboarding process and demonstrate a vision for the future of … handle difficult and sensitive situations involving the most critical and politically charged customer situations. Minimum Experience: A minimum of 1 year of hands-on experience deploying, configuring and administering security solutions, ideally MDE/MDO/MCAS/MDI/M365 Defender in large organizations of more than 1,000 managed devices/users, covering the following areas MDE More ❯

MS SECURITY SME DEFENDER ITALIAN FLUENT A MUST 100%% 100% REMOTE UK UP TO £80K DOE + BENEFITS (28 DAYS HOLIDAY AND 3% PENSION) Our client the largest IT solutions provider in the world are seeking to recruit a MS Defender Engineer and you will bring the below skill set: Your specific responsibilities will include: FLUENT IN ITALIAN AND … change and clarity Qualifications Recommended: The ideal candidate will have a two-year degree or the equivalent in work experience and preferably 3 years’ Customer Support and/or security experience. The successful candidate will have the ability to communicate effectively with corporate customers, possess an understanding of the Onboarding process and demonstrate a vision for the future of … handle difficult and sensitive situations involving the most critical and politically charged customer situations. Minimum Experience: A minimum of 1 year of hands-on experience deploying, configuring and administering security solutions, ideally MDE/MDO/MCAS/MDI/M365 Defender in large organizations of more than 1,000 managed devices/users, covering the following areas MDE More ❯

TypeScript, and frameworks like React, with a focus on designing intuitive, responsive, high-performance user interfaces. Robust knowledge of the Spring ecosystem, including Spring Boot , Spring MVC , and Spring Security , to build secure and efficient backend services. Proficient in designing, implementing, and optimising data models and complex queries in MySQL and MongoDB , supporting scalable, data-driven web applications. Extensive … experience using Bitbucket , Azure DevOps , GitHub Actions , or similar tools to automate and streamline deployment processes. Deep understanding of secure coding practices, focusing on OWASP Top 10 to ensure application security. Solid foundation in software testing principles, including designing and executing unit and integration tests using frameworks such as JUnit and TestNG . Proven ability to own features or More ❯

7+ years in a DevOps pre-sales engineering role Cloud infrastructure fluency (AWS, Azure or GCP) Hands-on experience with Docker, Kubernetes, CI/CD, Git, build tools Solid AppSec experience with SCA, SAST, SBOM, Container Security Proven track record helping to build enterprise relationships from tech champions to C-level in a clear client-facing pre-sales role More ❯

Penetration Tester (OSCP) Location: Remote Position Type: Full-time Reports to: Senior Penetration Tester About the Organisation A high-growth security consultancy working across government, space programmes, and FTSE 100 organisations is expanding its offensive security function. The team delivers complex, high-impact testing and simulation work for clients across the UK, US, and Europe. With a strong … We’re looking for a Penetration Tester/Red Team Consultant with 1–3 years’ experience who thrives on variety, problem-solving, and continuous learning. You’ll deliver offensive security assessments, red team operations, and threat-led simulations across a wide range of sectors, often on weekly, part-time client engagements. The role is remote, with occasional client visits … though none have been required in the last five years. Key Responsibilities Deliver red team, purple team, and wider offensive security engagements. Conduct attack simulations, threat modelling, and targeted technical testing. Carry out occasional physical security assessments. Produce high-quality penetration testing and red team reports. Communicate findings clearly to both technical and non-technical stakeholders. Support the More ❯

Communications, Datalinks and Interfaces such as 1553/1760 and Ethernet TCP/IP Practical knowledge of System integration principles and processes What happens now? Upon submission of your application, should it meet our selection criteria, you will be contacted via e-mail by one of our talent acquisition specialists to arrange a screening call. This telephone chat is … of questions aimed at matching your competencies and capabilities to the specific demands of the position. Please note, this screening is contingent upon the initial success of your application. Security Clearance : British Citizen or a Dual UK national with British citizenship Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a … minimum and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks (BPSS), which are managed by our clients Security Team. More about the role: For more than 70 years, our client has been in a strong partnership with the UK military. They have accomplished numerous milestones in defence engineering and have More ❯

increasingly leveraging AI and automation to stay ahead of cyber threats. You’ll be joining a small, collaborative engineering team where your ideas matter, working across product, architecture, and security to evolve a platform used by some of the UK’s most security-mature organisations. What You’ll Do Build and enhance platform features using PHP (Laravel), React … AI-driven functionality — improving automation, intelligence, and user insight. Design, integrate, and maintain APIs and microservices. Optimise the platform for performance, scalability, and security. Work closely with product and security leads to translate business goals into technical solutions. Skills & Experience Essential: Strong back-end development experience with PHP (Laravel) and MySQL. Solid knowledge of AWS — including deployment, monitoring, and … scaling. Understanding of secure coding principles and web application security. Comfortable working end-to-end across the stack in a small, fast-moving team. Desirable: Professional experience in cybersecurity SaaS, threat intelligence, or vulnerability management. Familiarity with AI/ML technologies, particularly around data classification or automation. Experience with CI/CD, containerisation, and serverless architectures. Front-end experience More ❯

you'll manage and optimise the environments our sites run on, working with solutions from Linux servers and LAMP stacks to Docker containers and cloud services such as AWS. Security, performance, and scalability will be part of your everyday thinking, as you configure servers, set up hosting platforms, and maintain smooth deployment pipelines. You'll also work with databases … APIs, build systems and CI workflows to keep projects running efficiently, applying best practices in technical SEO, accessibility, and application security. This is a hands-on role that combines creative front-end work with behind-the-scenes technical expertise, perfect for someone who enjoys variety and solving problems across the full digital stack. Key responsibilities Develop responsive, interactive websites … with modern web technologies Maintain and optimise servers, hosting platforms, and cloud services Translate prototypes and design systems into functional, polished products Apply best practices in security, performance, SEO, and accessibility What we're looking for Strong front-end skills (HTML/CSS/JS/TS, React/Preact) plus PHP/Node.js Experience with WordPress and modern More ❯

region. The ideal candidate will operate in a high-growth environment at scale, thrive in driving innovation, have a solid background in cybersecurity sales, and a deep understanding of security solutions. They will have a proven track record of developing strong customer relationships and executing strategies that support rapid expansion and success. This role requires a strategic thinker who … key customer accounts and delivering value to Enterprise or Major-level accounts in the cybersecurity industry Extensive platform selling experience in complex sales with multiple buying centers Experience selling Appsec or CNAPP (DevSecOps, CloudOps) solutions is highly preferred. Experience selling GenAI products preferred Established trusted relationships with CIOs and CISOs with the ability to influence and drive strategic conversations Expertise More ❯

delivery; key skills required include: Proven experience working within software processes in high-reliability, safety-critical, or regulated sectors. Solid understanding of the full Software Engineering Lifecycle and its application across multiple programmes. Familiarity with project management principles and the ability to support delivery milestones. Providing configuration management and software input to ensure consistency and traceability. Supporting a variety … test engineers and lab custodians to ensure smooth integration. Assisting in the delivery of integration artefacts and supporting documentation for project handovers. What happens now?Upon submission of your application, should it meet our selection criteria, you will be contacted via e-mail by one of our talent acquisition specialists to arrange a screening call. This telephone chat is … of questions aimed at matching your competencies and capabilities to the specific demands of the position. Please note, this screening is contingent upon the initial success of your application. Security Clearance:British Citizen or a Dual UK national with British citizenshipRestrictions and/or limitations relating to nationality and/or rights to work may apply. As a minimum More ❯

delivery; key skills required include: Proven experience working within software processes in high-reliability, safety-critical, or regulated sectors. Solid understanding of the full Software Engineering Lifecycle and its application across multiple programmes. Familiarity with project management principles and the ability to support delivery milestones. Providing configuration management and software input to ensure consistency and traceability. Supporting a variety … test engineers and lab custodians to ensure smooth integration. Assisting in the delivery of integration artefacts and supporting documentation for project handovers. What happens now? Upon submission of your application, should it meet our selection criteria, you will be contacted via e-mail by one of our talent acquisition specialists to arrange a screening call. This telephone chat is … of questions aimed at matching your competencies and capabilities to the specific demands of the position. Please note, this screening is contingent upon the initial success of your application. Security Clearance: British Citizen or a Dual UK national with British citizenship Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a More ❯

a world leader in missile and missile systems, trusted by the UK Ministry of Defence. We are seeking highly capable and adaptable engineers to develop safety-critical, real-time application software for next-generation missile systems. This hands-on role covers the full software development lifecycle within our advanced Development Facility in Stevenage, Hertfordshire. Key Responsibilities: Deliver on-board … Experience with ALM platforms such as JIRA or IBM Engineering Workflow Manager. Ability to create and manage virtual machines (e.g., VMware). What happens now? Upon submission of your application, should it meet our selection criteria, you will be contacted via e-mail by one of our talent acquisition specialists to arrange a screening call. This telephone chat is … of questions aimed at matching your competencies and capabilities to the specific demands of the position. Please note, this screening is contingent upon the initial success of your application. Security Clearance : British Citizen or a Dual UK national with British citizenship Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a More ❯

practice to build capability and foster continuous improvement. Strong appreciation of compliance and external standards, ensuring alignment through robust, efficient business processes. What happens now?Upon submission of your application, should it meet our selection criteria, you will be contacted via e-mail by one of our talent acquisition specialists to arrange a screening call. This telephone chat is … of questions aimed at matching your competencies and capabilities to the specific demands of the position. Please note, this screening is contingent upon the initial success of your application. Security Clearance:British Citizen or a Dual UK national with British citizenshipRestrictions and/or limitations relating to nationality and/or rights to work may apply. As a minimum … and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks (BPSS), which are managed by our clients Security Team. More about the role:For more than 70 years, our client has been in a strong partnership with the UK military. They have accomplished numerous milestones in defence engineering and have provided More ❯

practice to build capability and foster continuous improvement. Strong appreciation of compliance and external standards, ensuring alignment through robust, efficient business processes. What happens now? Upon submission of your application, should it meet our selection criteria, you will be contacted via e-mail by one of our talent acquisition specialists to arrange a screening call. This telephone chat is … of questions aimed at matching your competencies and capabilities to the specific demands of the position. Please note, this screening is contingent upon the initial success of your application. Security Clearance: British Citizen or a Dual UK national with British citizenship Restrictions and/or limitations relating to nationality and/or rights to work may apply. As a … minimum and after offer stage, all successful candidates will need to undergo HMG Basic Personnel Security Standard checks (BPSS), which are managed by our clients Security Team. More about the role: For more than 70 years, our client has been in a strong partnership with the UK military. They have accomplished numerous milestones in defence engineering and have More ❯

Lead our client's product strategy and execution, ensuring alignment with customer needs, market trends, and security standards. Drive innovation, while maintaining leadership in application security. Collaborate cross-functionally to build and execute a strategic roadmap, optimise product management processes, and mentor a high-performing team. Role: Collaborate with CPTO to define and execute a strategic product roadmap. More ❯

numerical methods, plus floating-point stability and mixed precision Formal methods & rigorous testing: model checking, property-based testing, fuzzing Security: applied crypto (use of vetted libs), web/appsec, sandboxing (seccomp/AppArmor), secrets/keys Distributed systems & consensus (Raft/Paxos), consistency models, backpressure, idempotency Build systems & developer tooling: Bazel/CMake, reproducible builds, hermetic CI, static analysis More ❯

numerical methods, plus floating-point stability and mixed precision Formal methods & rigorous testing: model checking, property-based testing, fuzzing Security: applied crypto (use of vetted libs), web/appsec, sandboxing (seccomp/AppArmor), secrets/keys Distributed systems & consensus (Raft/Paxos), consistency models, backpressure, idempotency Build systems & developer tooling: Bazel/CMake, reproducible builds, hermetic CI, static analysis More ❯