226 to 250 of 362 Security Testing Jobs in the UK

looking to recruit Cyber Security Architect to join our growing team based in London and Slough. This will be an on-going permanent basis employment for deserving candidate. The Security Architect is responsible for supporting multiple projects and programmes by defining and championing information security solutions. … project engineers, developers, internal/external business stakeholders and project managers within various departments to assess risk and deliver pragmatic, flexible and sustainable security that includes people, process and technology. Required Skills and Experience Solid exposure of taking a leading role in the establishment and implementation of security ...

hands-on test automation, network validation and service assurance across complex deployment and migration activities. 3 days per week onsite taking ownership of automated testing and validation throughout the change lifecycle, helping ensure deployments are secure, stable and ready to progress into production. Key responsibilities include: Designing, developing … only progress when defined validation criteria are met Developing and maintaining pyATS-based validation suites to verify network state, configuration and behaviour Conducting penetration testing and vulnerability assessments ahead of go-live Supporting Root Cause Analysis (RCA) across network, platform, performance and functional issues Producing structured test reports ...

hands-on test automation, network validation and service assurance across complex deployment and migration activities. 3 days per week onsite taking ownership of automated testing and validation throughout the change lifecycle, helping ensure deployments are secure, stable and ready to progress into production. Key responsibilities include: Designing, developing … only progress when defined validation criteria are met Developing and maintaining pyATS-based validation suites to verify network state, configuration and behaviour Conducting penetration testing and vulnerability assessments ahead of go-live Supporting Root Cause Analysis (RCA) across network, platform, performance and functional issues Producing structured test reports ...

forefront of the Generative AI evolution. We’re looking for a detail-oriented and proactive Quality Assurance Manager to oversee the testing and quality processes for our software developments. If you are passionate about delivering defect-free solutions, enjoy leading teams, and want to make a measurable impact … lead a small team of QA Engineers to ensure that every product release meets the highest standards of performance and reliability, driving improvements in testing processes, automation, and delivery. Location... This role is based at our head office in Bracknell, Berkshire. Key responsibilities of the role... Planning & Process: Review ...

Work on Technology That Protects What Matters At SiXworks , we build secure digital solutions that support Defence and National Security missions . Our teams work on complex problems where reliability, security, and speed of innovation matter. We’re looking for a QA Infrastructure Test Engineer who enjoys solving … work to have real operational impact. What You’ll Do As a QA Infrastructure Test Engineer , you’ll help ensure the quality, reliability, and security of physical and Infrastructure-as-Code (IaC)-based platforms across SiXworks delivery teams by applying the SiXworks STLC and Shift-Left principles throughout requirements ...

Citation Cyber is seeking a Security Consultant (Penetration Testing) to join their hybrid UK team. You will perform infrastructure and web app pentests, produce detailed reports, and present remediation guidance to clients across public and private sectors. Ideal candidates have consultancy-based pentest experience, strong reporting … passion for continuous learning, with familiarity in Windows/Linux/AD and cloud security testing (Azure/AWS). #J-18808-Ljbffr ...

with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology … well as delivering social value to the UK with our products and services. Join Thales at a pivotal time as we expand our Cyber Security capability across critical national infrastructure, defence, and aerospace programmes. As a Penetration Tester, you'll play a key role in identifying vulnerabilities across complex ...

with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology … well as delivering social value to the UK with our products and services. Join Thales at a pivotal time as we expand our Cyber Security capability across critical national infrastructure, defence, and aerospace programmes. As a Penetration Tester, you'll play a key role in identifying vulnerabilities across complex ...

with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology … well as delivering social value to the UK with our products and services. Join Thales at a pivotal time as we expand our Cyber Security capability across critical national infrastructure, defence, and aerospace programmes. As a Penetration Tester, you'll play a key role in identifying vulnerabilities across complex ...

with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology … well as delivering social value to the UK with our products and services. Join Thales at a pivotal time as we expand our Cyber Security capability across critical national infrastructure, defence, and aerospace programmes. As a Penetration Tester, you'll play a key role in identifying vulnerabilities across complex ...

with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology … well as delivering social value to the UK with our products and services. Join Thales at a pivotal time as we expand our Cyber Security capability across critical national infrastructure, defence, and aerospace programmes. As a Penetration Tester, you'll play a key role in identifying vulnerabilities across complex ...

seeking a Product, Application and Offensive Security Engineer to embed security into the design, development, testing, and operation of DTS products and platforms. You will work with product and engineering teams to review designs, assess APIs, run threat models, test systems, and remediate issues. You will lead … secure SDLC efforts, perform threat modelling, and conduct offensive security testing across APIs, data products, and integrations, including AI-enabled capabilities. #J-18808-Ljbffr ...

Citation Cyber is seeking a Security Consultant to join its penetration testing team in a hybrid UK role. You will deliver security assessments across client environments, producing thorough reports and presenting remediation recommendations to clients. Ideal candidates will have consultancy or equivalent experience in infrastructure … pentesting, strong reporting skills, and familiarity with Windows, Linux, AD, and cloud security testing (Azure/AWS). #J-18808-Ljbffr ...

with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology … well as delivering social value to the UK with our products and services. Join Thales at a pivotal time as we expand our Cyber Security capability across critical national infrastructure, defence, and aerospace programmes. As a Penetration Tester, you'll play a key role in identifying vulnerabilities across complex ...

Continuous Threat Exposure Management (CTEM). The HackerOne Platform unites agentic AI solutions with the ingenuity of the world’s largest community of security researchers to continuously discover, validate, prioritize, and remediate exposures across code, cloud, and AI systems. Through solutions like bug bounty, vulnerability disclosure, agentic pentesting … teaming, and code security, HackerOne delivers measurable, continuous reduction of cyber risk for enterprises. Industry leaders, including Anthropic, Crypto.com, General Motors, Goldman Sachs, Lufthansa, Uber, UK Ministry of Defence, and the U.S. Department of Defense, trust HackerOne to safeguard their digital ecosystems. HackerOne was recognized in Gartner’s Emerging ...

Cyber Security Engineer - Cyber & Autonomous Systems Team London, UK About the AI Security Institute The AI Security Institute is the world's largest and best-funded team dedicated to understanding advanced AI risks and translating that knowledge into action. We're in the heart … have an accurate view of risks and capabilities. We use realistic cyber ranges and a large CTF suite for our evaluations, run pre-deployment testing of frontier models, and collaborate with our partners across UK government, frontier labs, and NCSC. Role Description We are looking for exceptional cybersecurity experts ...

secure AI software development, helping millions of developers develop fast and stay secure as AI transforms how software is built. Our AI-native Developer Security Platform integrates seamlessly into development and security workflows, making it easy to find, fix, and prevent vulnerabilities — from code and dependencies to containers … mission is to empower every developer to innovate securely in the AI era — boosting productivity while reducing business risk. We’re not your average security company - we build Snyk on One Team, Care Deeply, Customer Centric, and Forward Thinking. It’s how we stay driven, supportive, and always ...

SDET) to act as a catalyst for quality across our engineering organisation. You will be a first‐class engineer who builds & maintains our automated testing infrastructure, enabling rapid feedback cycles and the delivery of high‐quality software at speed. This is a technical leadership role: you will advocate … throughout our developer experience. If you are passionate about quality engineering, comfortable using AI tooling to work faster and smarter, and want to shape testing practice in a fast‐paced fintech environment, we want you on our team. About Us Recently ranked #482 on the Inc. 5000 fastest growing ...

85.40 Umbrella inside IR35 Duration: 12 months Working Arrangements: Hybrid - 1-2 days per month on-site Key Responsibilities : PMS Interim and Final Security Cases (multi-phase delivery). Development and maintenance of the PMS IA/Security Risk Register Contributions to the Whole Boat IA Risk Register … supplier IA Technical Queries (TQs). Supplier IA/Cyber artefact reviews and assurance outputs. Skills & Qualifications : Strong understanding of Information Assurance and Product Security within complex engineered systems Possesses and understanding of Secure by Design concept versus Security Accreditation process Experience within large scale, highly regulated programmes ...

85.40 Umbrella inside IR35 Duration: 12 months Working Arrangements: Hybrid - 1-2 days per month on-site Key Responsibilities : PMS Interim and Final Security Cases (multi-phase delivery). Development and maintenance of the PMS IA/Security Risk Register Contributions to the Whole Boat IA Risk Register … supplier IA Technical Queries (TQs). Supplier IA/Cyber artefact reviews and assurance outputs. Skills & Qualifications : Strong understanding of Information Assurance and Product Security within complex engineered systems Possesses and understanding of Secure by Design concept versus Security Accreditation process Experience within large scale, highly regulated programmes ...

architecture across a large-scale Technology Transformation portfolio. The role: Define and govern enterprise-wide QE architecture and strategy Drive automation-first, continuous testing and shift-left practices Design and scale automation frameworks across UI, API, Data, Integration, AI and Non-Functional testing Establish quality standards, governance, quality … gates and release assurance Lead the adoption of AI-assisted and Agentic Testing Work across platforms including D365, Power Platform, GCP, Power BI, Azure APIM and APIs Provide technical leadership, coaching and mentoring to QE Leads, SDETs and Automation Engineers Build reusable QE frameworks, standards and accelerators Key technical ...

SEFE Marketing & Trading Ltd in London is seeking a Senior Manager, Security Threat, Vulnerability & Testing to lead enterprise threat intelligence, vulnerability management, and security testing across cyber, OT, physical, and people security domains. You will translate complex findings into clear, risk-based insights for senior … stakeholders, drive threat modelling and remediation lifecycles, and collaborate with Security Operations, GRC and business teams to strengthen resilience and reduce #J-18808-Ljbffr ...

About the Team As AI systems become more advanced, the potential for misuse of their cyber capabilities may pose a threat to the security of organisations and individuals. Cyber capabilities also form common bottlenecks in scenarios across other AI risk areas such as harmful outcomes from biological and chemical … conducting robust empirical tests of AI systems so we can better understand how capable they currently are when it comes to performing cyber security tasks. The AI Security Institute’s Cyber Evaluations Team is developing first-of-its-kind government-run infrastructure to benchmark the progress of advanced ...

pioneering a new role focused exclusively on quality assurance for GenAI/Agentic systems. As our Senior SDET for AI, you'll develop testing strategies, evaluation frameworks, and quality metrics specifically designed for LLM-powered applications. This role requires a unique blend of QA expertise, understanding of GenAI behaviour … agentic workflows. Develop robust, end-to-end automated test suites in Python across evaluations, API checks, UI checks, and performance tests. Create automated prompt testing systems and regression suites to proactively detect unintended changes in model behaviour. Establish multi-dimensional evaluation criteria to measure and track GenAI quality across ...

balancing detection accuracy with computational efficiency Contribute newly discovered coding agent failure modes to Apollo's shared failure mode library (owned by the AI Security & Control Researcher/Engineer) as they surface during monitor design, evaluation, and iteration Stay current with research on AI safety, agent failures, and detection … methodologies Stay current with research into coding security and safety vulnerabilities Fine-tuning & Monitor Development Fine-tune open-source models to create efficient monitors for high-volume production environments Design and build agentic monitoring systems that autonomously investigate logs to identify both known and novel failure modes Incorporate adversarial ...