Latest Penetration Testing Jobs

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 - CHECK Team Member

Conduct thorough penetration tests on web applications, networks, and IT infrastructure using both manual and automated methods. Translate technical findings into clear, actionable insights for clients and deliver risk-based remediation advice. Work within a collaborative security team while traveling to client sites across the UK as needed.

F5 London, United Kingdom £65,000 – £80,000 pa

Cyber Security Consultant - Penetration Tester

Conduct penetration testing engagements across network, cloud, and web application environments, delivering technical assessments and client-facing reporting. Work collaboratively within a security team while managing independent projects and supporting client scoping discussions. Focus on identifying and communicating security risks clearly to both technical and non-technical stakeholders.

FlexIT Talent Solutions Ltd London, United Kingdom £65,000 pa

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

QA Engineer

This role involves hands-on system, functional, and regression testing of SaaS-based cybersecurity products, with opportunities to contribute to test automation and collaborate across development and product teams. The engineer will identify and validate defects, participate in Agile processes, and help improve quality assurance practices within an agile, security-focused environment. Emphasis is placed on proactive problem-solving, clear communication, and continuous improvement in testing methodologies.

AWD online Rg145Dg, United Kingdom £38,000 – £45,000 pa

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

Senior Information Security Consultant

This role involves providing expert security consultancy across technology and business teams, focusing on secure design, risk identification, and practical solutions in cloud and infrastructure environments. The consultant will lead security initiatives, assess vulnerabilities, and contribute to security standards and governance. Emphasis is placed on proactive threat monitoring, remediation support, and mentoring within a regulated financial services environment.

Benchmark Capital Limited Horsham, West Sussex, United Kingdom

Information & Cybersecurity Assurance Manager

This role involves leading cybersecurity assurance across high-integrity programmes in a regulated, technical environment, with responsibilities spanning secure design, certification, risk assessment, and incident response. The individual will ensure compliance with standards such as ISO 27001, CE+, and DCC, while managing security across project lifecycles, supplier relationships, and space licensing. It requires deep technical engagement with engineering and security teams, along with governance and reporting at executive levels.

Standard 8 Guildford, United Kingdom £85,000 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

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

Security Engineer

This role involves hands-on management of network and device security across complex internal and customer environments. The Security Engineer will investigate incidents, implement security solutions, maintain SIEM/IDS/IPS systems, conduct vulnerability assessments, and support incident response. A key focus is ensuring robust security policies and standards are embedded, with close collaboration across IT, engineering, and security teams.

YourRecruit Rh13Dr, 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