Latest Penetration Testing Jobs

Spotlight

Senior Data Engineer

The role involves designing, building, and operating scalable batch and streaming data pipelines that transform vast, unstructured exposed data into reliable, queryable intelligence. You'll work end-to-end across the data lifecycle, ensuring high data quality and close integration with machine learning workflows for feature engineering and model training. The position emphasizes ownership of data platforms using modern cloud and data stack technologies in a collaborative, remote-first startup environment.

Lab 1 London, Greater London, United Kingdom £85,000 – £125,000 pa

Hybrid Permanent

Penetration Tester

This role involves conducting comprehensive penetration tests across IT, web applications, and Operational Technology environments, including industrial control systems. The candidate will identify vulnerabilities, produce actionable reports, and collaborate with internal teams and third parties to strengthen security posture. The position offers deep technical engagement with critical infrastructure and opportunities to influence security improvements across high-impact systems.

Yolk Recruitment Cardiff, South Glamorgan, CF10 2AF, United Kingdom £71,000 – £81,000 pa

Hybrid Permanent Clearance Required

Penetration Tester

This role involves conducting comprehensive penetration tests across networks, web and mobile applications, APIs, and cloud environments using both manual and automated techniques. The tester will simulate real-world cyberattacks, identify vulnerabilities, and produce detailed technical and executive reports with actionable remediation advice. A key focus is translating complex security findings for non-technical stakeholders while adhering to strict ethical and compliance standards in a security-cleared context.

SmartSourcing Ltd United Kingdom £60,000 – £80,000 pa

Remote Permanent Clearance Required

Penetration Tester

This role involves conducting comprehensive penetration tests across internal/external infrastructure, web applications, and networks, using industry-standard tools like Burp Suite, Metasploid, and Nmap. The candidate will produce detailed technical reports, support client engagements, and contribute to research and development in emerging security areas such as OT and threat-led testing. The position supports professional growth with certification opportunities and progression into advanced offensive security disciplines.

Big Red Recruitment Midlands Limited London, United Kingdom £45,000 – £55,000 pa

Hybrid Permanent Clearance Required

Penetration Tester

Conduct penetration tests across internal/external infrastructure, web applications, and networks using tools like Burp Suite, Nessus, and Metasploit. Produce detailed technical reports with risk assessments and remediation advice, while supporting methodology improvements and client engagement. Contribute to research in emerging areas such as OT and red teaming within a growing offensive security team.

Big Red Recruitment Ec4A3Eb, United Kingdom £40,000 – £45,000 pa

Hybrid Permanent Clearance Required

Penetration Tester

Conduct penetration tests across web applications, networks, APIs, mobile apps, and cloud environments to identify and remediate security vulnerabilities. Simulate real-world attacks to evaluate system resilience and produce detailed technical and executive reports. Collaborate with internal teams to validate findings and improve security posture using industry-standard tools and frameworks.

Darktrace London, UB8 1LQ, United Kingdom

Red Team Director

Leads a red teaming function to proactively identify and exploit vulnerabilities in Barclays' IT systems, enhancing cyber resilience through adversary emulation, purple teaming, and real-time collaboration with security operations. Develops offensive security strategy, integrates AI into testing, and strengthens organisational readiness against advanced threats. Works closely with senior stakeholders to influence security investment and control priorities.

Barclays United Kingdom

Security Engineer, AWS Security

This role involves conducting security reviews, threat modelling, and penetration testing for AWS services to identify and remediate vulnerabilities prior to launch. The engineer collaborates with development teams to enforce secure coding practices, cryptographic standards, and data protection, while documenting risks and guiding remediation. It focuses on proactive security validation within cloud-based application architectures.

Amazon London, United Kingdom

Hybrid Permanent Clearance Required

Security Architect_ Active DV clearance

Design and implement endpoint security solutions and platform controls for air-gapped, offline environments. Develop secure patching, vulnerability management, and data transfer mechanisms while ensuring compliance with UK government security standards including JSP and NCSC guidelines. Produce technical documentation and support penetration testing within highly classified settings.

Randstad Technologies Recruitment Erskine, Renfrewshire, PA8 7AA, United Kingdom £400 – £450 pd

On-site Contract Clearance Required

Cryptography Operations Engineer

This role involves managing cryptographic assets, including encryption keys and HSMs, to ensure data security across enterprise systems. The engineer will monitor, implement, and support cryptographic solutions, conduct security assessments, and contribute to policy and training. Work includes BAU and on-call support within a global 24/7 team, using tools from Thales and Entrust in complex Windows and Linux environments.

Barclays Knutsford, WA16 9EU, United Kingdom

Information Security Manager

Information Security ManagerHybrid (3 days onsite)Are you an experienced Information Security professional looking for a role where you can genuinely influence an organisation's security strategy while remaining hands-on with the latest technologies?We're working with a well-established financial services organisation seeking...

Proactive Appointments W1J5Jn, W1J 5JN, United Kingdom £90,000 – £100,000 pa

Senior Security Engineer

As a Senior Security Engineer, you will lead the implementation and maintenance of security systems, conduct risk assessments, and manage various security gateways and protocols. You will mentor junior engineers, collaborate with the IT team, and ensure compliance with security standards, acting as a key technical leader in safeguarding sensitive data and systems.

Taylor James Resourcing London, United Kingdom £80,000 – £95,000 pa

Hybrid Permanent Shift-work

Information Security Manager

The role involves leading the organisation's information security strategy, managing technical security operations, and ensuring compliance with ISO 27001, NIST, and CBEST frameworks. Responsibilities include vulnerability management, penetration testing coordination, SIEM monitoring, and incident response, with a minor focus on supporting enterprise networking infrastructure. The position balances strategic governance with hands-on technical work in a hybrid environment.

Proactive Appointments W1J5Jn, United Kingdom £90,000 – £100,000 pa

Hybrid Permanent Clearance Required

Cyber Security Analyst

Security Analyst | Cardiff | Hybrid Working | Excellent BenefitsAre you looking for a role where you'll play a key part in protecting a leading professional services organisation from evolving cyber threats?We're looking for a proactive Security Analyst to join...

Yolk Recruitment Cardiff, Cymru / Wales, CF10 2AF, United Kingdom

Interim Cyber Security Officer

This role involves providing senior-level technical leadership for a Security Operations Centre, with a focus on enhancing capabilities in endpoint detection and response using CrowdStrike Falcon and Splunk Enterprise Security. The candidate will lead configuration, incident response, threat hunting, and SOAR automation, while mentoring internal teams and improving security monitoring. The position requires deep expertise in EDR, SIEM, and security orchestration within a hybrid working environment in London.

Alois Technologies Limited London, United Kingdom £400 – £500 pd

Security Architect - DV Cleared

Design and implement endpoint security solutions, including AntiVirus/EDR and vulnerability management, within air-gapped, high-assurance government environments. Ensure compliance with MOD, NCSC, JSP, and NIST standards while producing technical documentation and supporting accreditation. Collaborate with infrastructure and security teams to deliver secure backend platform capabilities.

CBSbutler Holdings Limited trading as CBSbutler Corsham, Wiltshire, SN13 0HB, United Kingdom £500 – £555 pd