Penetration Tester – CHECK Team Member

About the role

Are you a hands‑on Penetration Tester who enjoys finding the weaknesses others miss and explaining them in a way clients can actually understand? We are looking for an experienced CHECK Team Member to join a well‑established cybersecurity practice delivering technical assurance services to a varied portfolio of clients.

Key responsibilities

• Deliver penetration tests, security assessments and IT Health Checks.
• Test web applications, networks and wider IT infrastructure.
• Use manual and automated techniques to simulate real‑world attacks.
• Produce clear technical reports, executive summaries, scopes and proposals.
• Explain findings to both technical and non‑technical stakeholders.
• Provide practical, risk‑based remediation advice.
• Keep pace with emerging threats, vulnerabilities and testing methodologies.
• Share knowledge and contribute to the development of the wider team.
• Travel to client sites across the UK when required.

Required profile

• At least three years’ commercial penetration‑testing experience.
• Current CHECK Team Member status.
• Current SC clearance and sole UK nationality.
• Strong hands‑on experience with tools such as Burp Suite, Metasploit and Nmap.
• Good knowledge of Windows and Linux/Unix operating systems.
• Experience with network devices, firewalls, IDS/IPS and wireless technologies.
• Understanding of standards and regulations such as ISO 27001, PCI DSS and GDPR.
• Strong report‑writing and client communication skills.
• Collaborative approach with willingness to share knowledge.
• Flexibility to travel to UK client locations when needed.

Required skills

• Burp Suite
• Metasploit
• Nmap
• Windows operating systems
• Linux/Unix operating systems
• Firewalls
• IDS/IPS
• Wireless technologies