101 to 125 of 127 Security Testing Jobs in the UK

range of AI/Machine Learning features across our product lines, which will be part of the focus of this role. Major ResponsibilitiesEnsure that testing activities verify applications meet business requirements, technical specifications, and quality goals, while identifying and resolving system issues. Evaluate, plan, design, and implement comprehensive test … strategies and frameworks for new applications, enhancements, and integrations across the development lifecycle. Perform and lead various types of testing, including (but not limited to) functional, regression, integration, backend database validation, API, mobile, scalability, cross-browser compatibility, and usability testing. Collaborate closely with Developers, Product Owners, and Business Analysts ...

leading client in the Accountancy industry who require a Penetration Tester to join the firm in London. Key Responsibilities: * Lead and support penetration testing engagements across web applications, APIs, and internal and external network infrastructure. * Work with clients to define objectives, agree scope and rules of engagement, and plan … testing that meets their assurance needs. * Apply manual and tool-assisted testing techniques aligned with recognised methodologies and frameworks, including the OWASP Web Security Testing Guide, PTES, and MITRE ATT&CK. * Deliver Cyber Essentials Plus assessments, including scoping, conducting the required technical tests, verifying remediation ...

nature of the work and the customers we support, the successful candidate must be eligible to meet UK Government and contractual personnel security requirements, including the applicable residency requirements for the role, and have the right to work in the United Kingdom. Some roles may also be subject … nationality requirements where these are necessary to meet UK Government or contractual security obligations. Key Responsibilities Strategy & Frameworks: Design, implement, and continuously improve automated testing strategies covering functional, non-functional, regression, and security testing across complex systems. Agile Integration: Embed quality assurance seamlessly into SAFe Program ...

secure multi-account AWS environments, defined entirely as code Managing container platforms in the cloud and on-premises, with automated GitOps-style deployments Leading security reviews and hardening across the estate Owning monitoring, alerting and resilience, including regular backup and recovery testing Keeping cloud spend and capacity under … GitOps tooling, with Docker and Linux Experience managing artifact repositories and integrating single sign-on Scripting in Bash and Python or Go, and security testing built into pipelines Desirable: MLOps experience, Prometheus-style observability, security frameworks such as ISO 27001, active SC clearance What's On Offer ...

Remote (UK) We're working with a leading global retail organisation seeking an experienced Penetration Tester to support a growing portfolio of security projects across network, infrastructure and telecommunications environments. This is a highly client-facing role where you'll own the full penetration testing lifecycle, from planning … execution through to reporting and presenting findings and recommendations to stakeholders. Key Responsibilities Conduct infrastructure and network penetration tests Assess network architecture and security controls Identify vulnerabilities and provide remediation recommendations Produce high-quality technical reports Present findings directly to clients and stakeholders Manage engagements independently from start ...

build services across the global template, pilot and deployment waves. Key Responsibilities: Own the build management framework across design handover, configuration, development, technical testing, defect resolution, release readiness and transition to downstream testing. Coordinate build services across multiple systems integrators and specialist suppliers, ensuring clear accountability, quality and delivery … remediation, retrofit, integrations and technical enablement. Manage build plans, milestones, dependencies, risks, issues, capacity, quality gates and readiness across concurrent deployment waves. Coordinate with testing, release, cutover and service transition teams to ensure build outputs are complete, documented and ready for deployment. Provide concise reporting, escalate material risks ...

Application Security Engineer £60,000 £75,000 + Excellent Benefits | Hybrid Working An exciting opportunity for an experienced Application Security Engineer to play a key role in strengthening application security across a modern technology environment. Youll embed security throughout the software development lifecycle, driving a shift … left approach and integrating automated security controls into CI/CD pipelines. Working closely with development and DevOps teams, youll help identify vulnerabilities early, improve secure coding practices and enhance application security tooling. Key Experience Required: Strong experience in Application Security, DevSecOps and CI/CD pipelines. ...

Security Operations Implementation Planning Consultant Rate: £800–£900 per day Inside IR35 Duration: ASAP start - Initially until 31 March 2027, with potential extensions Location: London - 1 day per week onsite, remainder remote Clearance: Active SC clearance required Overview We are supporting a specialist Security Consultancy delivering a major … security transformation programme for a UK Government Department. We are seeking an experienced Security Operations Implementation Planning Consultant to translate high-level SecOps transition strategies into detailed, actionable implementation plans across multiple security services. This role requires a strong understanding of enterprise Security Operations, combined with ...

Application Security Engineer £60,000 – £75,000 + Excellent Benefits | Hybrid Working An exciting opportunity for an experienced Application Security Engineer to play a key role in strengthening application security across a modern technology environment. You'll embed security throughout the software development lifecycle, driving … shift-left approach and integrating automated security controls into CI/CD pipelines. Working closely with development and DevOps teams, you'll help identify vulnerabilities early, improve secure coding practices and enhance application security tooling. Key Experience Required: Strong experience in Application Security, DevSecOps and CI/ ...

holding the team to a high standard of clean, well-tested, maintainable code. Define and evolve the platform's architecture for usability, scalability, performance, security and resilience, making pragmatic trade-offs and documenting key decisions. Shape how the platform integrates with internal and external parties through clear, versioned … senior business stakeholders to turn complex business processes into a coherent technical roadmap and deliverable increments. Drive engineering excellence across the team: automated testing, continuous integration and delivery, code review, observability and secure-by-design practices. Represent the platform in architecture governance forums, and work with platform, security ...

Please note this role require you to gain SC ClearanceJob DescriptionYou'll be tasked with leading on-site security assessments in secure environments, showcasing professionalism and maturity at every step. Your responsibilities will include conducting structured programs of security testing, consultancy, and research, as well as delivering … engaging directly with secure environments to make a tangible impact. Required Skillsvulnerability assessmentsonsite check penetration testsdevice health check and build reviews.red team and advanced testing simulationsSpecialise in network infrastructure penetration tests. Conduct technical security tests against information systems or products with the aim of identifying vulnerabilities. Ensure that ...

Lead Penetration Tester - Remote Looking for your next step in penetration testing? I'm working with a growing cybersecurity consultancy that's built a strong reputation across Penetration Testing, SOC and Advisory services. As the team continues to expand, they're looking to hire a Lead Penetration Tester … combine hands-on delivery with mentoring and leadership responsibilities. You'll work closely with the Head of Penetration Testing, helping to shape and develop the service while remaining involved in a variety of technical engagements across a predominantly commercial client base. What you'll be doing Delivering ...

onsite 5 days per week) As a Test Automation Engineer, you design, develop, and execute automated test scripts to verify system functionality, performance, and security throughout each sprint. You ensure automated tests are reliable and seamlessly integrated into CI/CD pipelines, supporting faster releases and confident, high-quality … robust automated test scripts for APIs, microservices, and user interfaces. Pipeline Execution: Integrate test suites into CI/CD pipelines to ensure automated regression testing occurs with every build. Defect Investigation: Analyze test failures, log defects with detailed reproduction steps, and verify fixes provided by developers. Collaboration: Participate actively ...

DEVOPS ENGINEER" ROLE As an AWS DevOps Engineer, you will support the implementation and maintenance of cloud infrastructure, automate deployments and embed security throughout the software delivery lifecycle. You will work across AWS services, infrastructure as code, containerised applications and CI/CD tooling, helping to maintain secure … Endpoints/PrivateLink, Elastic Load Balancing, Secrets Manager, IAM, RDS and Control Tower. Implementing and maintaining GitLab CI/CD pipelines, embedding shift-left security practices including SCA, SAST and DAST. Developing application CI/CD pipelines for containerised applications using Docker Compose on EC2 and Kubernetes ...

finance, CRM, workforce management and other business systems. Building data pipelines and reporting services to provide reliable, consistent business information. Implementing effective AI governance, security, testing and monitoring to ensure solutions are reliable, compliant and fit for purpose. Working with stakeholders across the business to identify opportunities … calling and evaluating AI outputs. A solid understanding of web applications, REST APIs, relational databases and cloud or serverless deployment. Experience with Git, automated testing and CI/CD pipelines. A good understanding of software security, data protection and the responsible use of AI. The ability to understand ...

experienced Change, Release & Service Introduction Manager to own and govern the Change Enablement, Release Management and Service Introduction processes across a complex, multi-supplier, security-conscious environment. You will ensure that production changes, releases and new services are assessed, authorised, implemented and transitioned into live operation safely and effectively. … Working across technical teams, suppliers, service delivery, security and operations functions, you will balance the need for agility with the need for service stability, compliance and operational control. Key Responsibilities Own and continuously improve the Change Enablement process and governance framework. Chair CAB and Emergency CAB meetings, facilitating risk ...

experienced Change, Release & Service Introduction Manager to own and govern the Change Enablement, Release Management and Service Introduction processes across a complex, multi-supplier, security-conscious environment. You will ensure that production changes, releases and new services are assessed, authorised, implemented and transitioned into live operation safely and effectively. … Working across technical teams, suppliers, service delivery, security and operations functions, you will balance the need for agility with the need for service stability, compliance and operational control. Key Responsibilities Own and continuously improve the Change Enablement process and governance framework. Chair CAB and Emergency CAB meetings, facilitating risk ...

limitsExplore agentic workflows and LLM orchestration using LangChain or similar frameworksWork with consultants and customer stakeholders to translate operational problems into practical AI solutionsImprove security, testing, observability and reliability across deployed applicationsWhat we're looking for:5+ years' commercial Python engineering experience, including production backend systemsStrong FastAPI, REST ...

workflows, data sources, and decision-making processes more efficiently. Operating within a high-growth environment, they combine advanced AI capabilities with enterprise-grade reliability, security, and compliance. Their engineering team is highly collaborative, with a strong focus on product quality, innovation, and ownership. They are investing heavily in technology … native technologies. Develop APIs, workflow services and data platforms that support AI-powered products. Build and optimise multi-tenant systems with a focus on security, reliability and auditability. Work closely with engineering teams to integrate backend systems with AI and machine learning services. Improve observability through monitoring, logging, testing ...

Date Monday, 23rd November 2026 Desired Skills Communication skills IT skills Attention to detail Organisation skills Administrative skills Team working Initiative Interest in cyber security Qualifications Maths and English GCSE, grade C/4 (Essential) Degree in Business, Communications or Discursive s Degree, grade Pass (Desired) About the Employer … Helix Red Helix is a trusted UK technology and cyber security partner that has been engineering secure, high-performance networks since 1984. For over forty years, we have helped protect and optimise the systems that keep the UK’s infrastructure and economy running. Our Technology Solutions team helps organisations ...

engineering problem-solving. Key Responsibilities & Skills Data Architecture & Strategy: Define and evolve data strategy, architecture principles, standards and target-state roadmaps, balancing scalability, resilience, security, cost and delivery speed. Cloud-Native & Distributed Systems: Deep expertise in microservices, domain-driven design (DDD), bounded contexts, data ownership, event-driven integration, eventual … Hands-on experience designing and operating Kafka, Kinesis or equivalent platforms, including partitioning, ordering, event contracts, schema evolution, idempotency, replay, delivery guarantees, fault tolerance, security and operational support. Data Modelling & Storage: Strong data modelling skills and the ability to select appropriate data storesincluding relational, NoSQL, graph, time-series, distributed ...

design systems with a longer-term approach, using patterns that allow safe iteration and scaling. Accountability within your team for the availability, reliability, and security of the systems you build. Good judgement in balancing speed, scalability, and risk, with resilience and safety in mind. Ability to address technical debt … pragmatically and plan work within an appropriate risk appetite. Commitment to engineering best practices across observability, security, testing, and responsible data and event usage. Ownership and product mindsetOwnership of technical deliverables across projects from design through production. Ability to explain why something is being built, what partner ...

technical authority, ensuring the solution fits effectively within the wider technology landscape. You will provide hands-on architectural leadership across solution design, integrations, data, security, testing, deployment and transition. What youll be doing: Defining and maintaining the end-to-end ERP solution architecture Designing and governing integrations between ...

Infrastructure Engineer Test Engineer - DV Cleared- Contract - MOD/Defence Somerset| £600 per day + Expenses | Outside IR35 | DV Security Clearance Required Are you an Infrastructure Test Engineer with strong QA and testing experience across networks, platforms and Infrastructure as Code? This is an opportunity to work … complex Defence and National Security projects, taking responsibility for testing and validating infrastructure before deployment into highly secure production environments. Working alongside Infrastructure Engineers, Architects and DevSecOps specialists, you'll assure infrastructure across physical, virtualised and cloud environments, ensuring it meets the required standards for functionality, resilience ...

decisions, actions, approvals and exceptions are clearly recorded and communicated. * Review requests for change for quality, completeness and proportionate governance, including business impact, dependencies, security, testing, communications, implementation, validation and rollback arrangements. * Provide practical guidance and constructive challenge to change owners and approvers so that risks, conflicts, resource ...