176 to 200 of 210 Security Testing Jobs in England

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

Title: Penetration Tester (CHECK Team Member) Location: UK (Hybrid/Remote) Experience: 1–3 years Eligibility: UK National (must be eligible for security clearance) About the Role: We're looking for a Penetration Tester (CHECK Team Member) to join our growing cybersecurity team. You'll conduct network … application security testing for a range of clients, helping identify vulnerabilities and strengthen defences. Key Responsibilities Deliver high-quality penetration tests and vulnerability assessments. Produce clear, actionable reports and remediation guidance. Support CHECK-accredited engagements and collaborate with senior testers. Stay current with new exploits, tools, and testing ...

quality techniques. Work closely with developers to embed testability into code and architecture. Drive improvements through root-cause analysis and continuous refinement of processes. Testing & Validation Write and execute automated and occasional manual test cases. Validate functional and non-functional behaviour, including performance and regression areas. Participate in code … Improvement Partner with engineering and product teams to define requirements and acceptance criteria. Champion best practices in automation and contribute toward a shift-left testing approach. Mentor colleagues on tools, frameworks and automation methods. Required Skills & Experience Degree in Computer Science, Engineering or equivalent experience. Strong programming skills ...

Role: Electronics Software Engineer Location: Oldham Salary: Up to £50,000 + Benefits KO2's client, a global leader in advanced security technologies, is continuing its growth and is seeking an Electronics Software Engineer to support the development of world-class protection systems deployed in some of the most … secure environments worldwide. Our client is a highly respected name within the high-security systems sector, generating over £50 million in annual turnover. They are recognised globally for their expertise in drone defence, blast mitigation, and perimeter protection. Despite their international footprint, they retain a supportive, family-oriented culture ...

backend Maintain regression test suites and expand test coverage Collaborate on test plans, acceptance criteria, and release readiness Build tools that make testing faster, smarter, and more effective What you bring: 4+ years in QA/testing roles, with strong automation experience Familiar with Selenium, Cypress, or other … test frameworks Experience with REST API testing using tools like Postman Detail-obsessed and comfortable in agile environments Nice-to-haves: Basic scripting or coding knowledge Familiarity with performance or security testing 41268MSR3 INDMANS ...

backend Maintain regression test suites and expand test coverage Collaborate on test plans, acceptance criteria, and release readiness Build tools that make testing faster, smarter, and more effective What you bring: 4+ years in QA/testing roles, with strong automation experience Familiar with Selenium, Cypress, or other … test frameworks Experience with REST API testing using tools like Postman Detail-obsessed and comfortable in agile environments Nice-to-haves: Basic scripting or coding knowledge Familiarity with performance or security testing 41268MSR3 INDMANS ...

Site Reliability Engineer (SC Cleared) 6 Month Contract London (Hybrid) £525/day (Inside IR35) Site Reliability Engineer (SRE) needed with active SC Security Clearance and strong Azure Cloud expertise (including Kubernetes, Terraform + GitHub). 6 Month Contract based in Central London (Hybrid). Paying … routing, firewalls). Troubleshooting + resolving complex Azure Cloud infrastructure/application issues. Working with key stakeholders, external suppliers + cross-functional teams (IT Security, Testing + Applications). Supporting Azure Cloud migration initiatives using frameworks like: AzureRM, CAF, Google Cloud. Participating in 24/7 on-call ...

Site Reliability Engineer (SC Cleared) 6 Month Contract London (Hybrid) £525/day (Inside IR35) Site Reliability Engineer (SRE) needed with active SC Security Clerance and strong Azure Cloud expertise (including Kubernetes, Terraform + GitHub). 6 Month Contract based in Central London (Hybrid). Paying … routing, firewalls). Troubleshooting + resolving complex Azure Cloud infrastructure/application issues. Working with key stakeholders, external suppliers + cross-functional teams (IT Security, Testing + Applications). Supporting Azure Cloud migration initiatives using frameworks like: AzureRM, CAF, Google Cloud. Participating in 24/7 on-call ...

cloud infrastructure and application issues. Mentor junior engineers and promote knowledge sharing within the team. Collaborate with stakeholders, vendors, and cross-functional teams (Cyber Security, Testing, Application). Support cloud migration initiatives using frameworks like CAF, AzureRM, Google Cloud . Represent the team during project delivery and ensure ...

successful candidate will work the full development lifecycle and will play a key role is designing, automating and delivering secure cloud solutions. The Security Cleared DevOps engineer will have strong expertise within Azure, Terraform and GitHub. Key Responsibilities of the DevOps Engineer: Lead the migration of applications within Azure. … strong knowledge of Azure Policy and key Azure components that influence successful migrations. Represent the engineering team in projects and work closely with PMs, Security, Testing, and Application teams. Provide SRE-level support, troubleshooting, and incident resolution for complex cloud environments. Mentor junior engineers and promote knowledge-sharing ...

cloud and Infrastructure-as-Code expertise to support the delivery of a large-scale Azure application migration and modernisation programme. This role requires a Security Cleared DevOps professional with solid, hands-on experience in Azure, Terraform, and GitHub. The chosen DevOps engineer will be involved throughout the full development … lifecycle, contributing to the design, automation, and implementation of secure cloud solutions. Essential Skills of the DevOps Engineer: Must hold a current Security Clearance or recently lapsed SC Clearance. Must have deep hands-on experience with Azure, GitHub, CI/CD pipelines, automation tools, and cloud networking. Advanced proficiency ...

solutions on Ethereum (Solidity) or Solana (Rust) Contributing to enterprise distributed ledger workflows (DAML-based platforms) Collaborating with engineers and product teams on architecture, security and scalability Reviewing, testing, and improving smart contract code Supporting integration with off-chain services, APIs, and data layers Key Skills & Experience: Strong … experience working with Solidity and Ethereum smart contracts And/Or experience developing Solana programs using Rust Understanding of smart contract security, testing and optimisation Experience working with DAML (desirable but not essential) Exposure to XRP Ledger/Ripple concepts or integrations (Bonus) Why This Role? Work across ...