21 of 21 Permanent Penetration Testing Jobs in London

Cyber Threat Analyst (Penetration Tester) Based in London (Hybrid) Permanent role We are partnering with a trading company that is hiring a Cyber Threat Analyst (Penetration Tester) to join their Information Security team. This is an entry-level opportunity offering hands-on experience in penetration testing and security engineering within a globally significant financial market infrastructure environment. The Role You will support the penetration testing and threat operations function. Key responsibilities include: Assisting with penetration testing Supporting incident response, threat hunting, and detection engineering Identifying vulnerabilities and documenting exploitation paths, with ...

across the UK. They are expanding their CHECK capability and investing heavily in building out their Offensive Security practice. They’re looking for a penetration tester who wants to join at a genuine growth stage — not just deliver work, but help shape the capability as it scales. Role: Penetration … Location: London | Hybrid The Opportunity This role offers a 60%/40% split : 60% Cyber Essentials & Cyber Essentials Plus assessments 40% Hands-on penetration testing across infrastructure and applications As the organisation grows its CHECK capability, there is clear progression and accreditation support. If you are already ...

across AI/ML systems, including data pipelines, model APIs, and GenAI services Develop tools, scripts, and benchmarks to automate AI/ML security testing Perform secure code reviews and penetration testing of AI-related software Research and Development Research emerging threats, trends, and best practices … Python and Bash Strong knowledge of cloud technologies, specifically AWS and Azure Strong understanding of API development and API security Experience with threat modelling, penetration testing, and vulnerability assessments Familiarity with secure software development practices (OWASP, DevSecOps) Interest in or exposure to data science, AI, or ML systems ...

role within the Information Security Team. The key tasks and responsibilities include, but are not limited to, the following: Conduct thorough Red Team offensive penetration testing on our IT (on prem and cloud) infrastructure to identify vulnerabilities and provide recommendations for remediation. Perform security assessments on cloud-based … applications, ensuring they adhere to industry standards and best practices. Execute red team exercises to simulate real-world attack scenarios, testing the firm's detection and response capabilities both internal and external. Assess and test the security of internally deployed infrastructure IoT devices and sensors, identifying potential vulnerabilities ...

anyway. You may be just the right candidate. The Role What you’ll do: Conduct security assessments, threat hunts, code and logs reviews, and penetration testing to identify vulnerabilities in our applications, and drive continuous monitoring improvements. Design, implement, optimize, and monitor security controls and tooling from … security incidents in real time - manage containment, remediation, forensics, and root cause analysis. Also participate in tabletop exercises, incident simulations, and coordinate external penetration tests. Partner with Solutions Engineering to support enterprise customer onboarding, including SSO integrations (SAML/OIDC), network allowlisting, and security reviews. Join customer-facing technical ...

maturity assessments Collaboration with infrastructure, support, compliance, and security teams Nice to Haves Background in SOC , infrastructure, or technical security roles Exposure to penetration testing concepts (understanding how testing works, not hands-on delivery) Experience improving immature or overly compliance-led risk processes Familiarity with public sector ...

maturity assessments Collaboration with infrastructure, support, compliance, and security teams Nice to Haves Background in SOC , infrastructure, or technical security roles Exposure to penetration testing concepts (understanding how testing works, not hands-on delivery) Experience improving immature or overly compliance-led risk processes Familiarity with public sector ...

Cyber Threat Analyst (Penetration Tester) Based in London (Hybrid) Permanent role We are partnering with a trading company that is hiring a Cyber Threat Analyst (Penetration Tester) to join their Information Security team. This is an entry-level opportunity offering hands-on experience in penetration testing ...

trusted advisor across technical and commercial teams. Key Responsibilities Design and implement security strategies, policies and controls Lead vulnerability assessments, penetration testing and remediation Oversee regulatory and compliance frameworks including SOC2, ISO 27001 and GDPR Monitor systems and respond to incidents and security events Strengthen ...

trusted advisor across technical and commercial teams. Key Responsibilities Design and implement security strategies, policies and controls Lead vulnerability assessments, penetration testing and remediation Oversee regulatory and compliance frameworks including SOC2, ISO 27001 and GDPR Monitor systems and respond to incidents and security events Strengthen ...

firewalls, VPNs, IDS/IPS, web and email security solutions. • Maintain high patching and vulnerability remediation standards, including CVE management. • Coordinate annual third-party penetration testing and lead remediation based on risk and CVSS scoring. • Investigate cyber incidents, perform forensic analysis, and implement rapid mitigation actions. • Maintain ...

security logging, monitoring, alerting and vulnerability management Infrastructure-as-Code, configuration management and automation Secure networking, encryption, backup and resilience Technical leadership of pen testing, vulnerability scans and remediation Support CI/CD pipelines and secure change management Produce clear technical documentation and audit-ready evidence Act as technical ...

practices. Vulnerability and Incident Management Operate vulnerability management processes including: CVE monitoring and triage Patch management coordination Tracking and closure of remediation actions Coordinate penetration testing and security assessments across products, platforms, and infrastructure. Maintain incident response documentation, support tabletop exercises, and assist with post-incident reviews. Identity ...

London - UK Only Please Key Responsibilities Support and enhance the organisation's application security testing programme, leveraging approved enterprise tools for SAST, SCA, DAST, API security assessment, and penetration testing activities. Conduct manual analysis and security review activities across web, API, and internal applications to validate automated … technical stakeholders have clear visibility of risk, progress, and governance alignment. Performance Objectives Effectively run the application security toolset (SAST, SCA, DAST, API testing) within established SDLC and CI/CD processes, ensuring vulnerabilities are accurately identified, triaged, and communicated to engineering teams. Strengthen collaboration with development teams, providing ...

cloud service provider integrations to ensure appropriate technical and contractual security controls. Support incident response planning and vulnerability management. Define ITHC scope, coordinate penetration testing activities, and prepare pre-assessment documentation. ...

start preferred. Who This Is NOT For Candidates looking for account management stability Pure SaaS product sellers without consulting exposure Individuals focused only on penetration testing sales Profiles seeking heavy inbound marketing support Why This Role Is Different You are not joining a saturated corporate structure. ...

Service and Solution. You will be seeing designs through from start to finish incorporating everything from technology to solution, assurance, governance, and security (pen testing) - Not from a hands-on perspective but from a design perspective. You will need to be client facing and be able to make complex ...

London - UK Only Please Key Responsibilities Support and enhance the organisation's application security testing programme, leveraging approved enterprise tools for SAST, SCA, DAST, API security assessment, and penetration testing activities. Conduct manual analysis and security review activities across web, API, and internal applications to validate automated ...

Position Sales Development Executive (SDR) Cybersecurity UK Remote, with regular travel to Surrey About us Talanos Cybersecurity is a values led Managed Security Service Provider trusted by organisations to help defend against modern cyber threats. ...

Offensive Security Researcher/Security Consultant | Elite Cybersecurity Scale-Up | Fully Remote (Global) Ready to take your offensive security skills to the next level? This is your chance to join a fast-scaling cybersecurity innovator ...

Offensive Security Researcher/Security Consultant | Elite Cybersecurity Scale-Up | Fully Remote (Global) Ready to take your offensive security skills to the next level? This is your chance to join a fast-scaling cybersecurity innovator ...