Penetration Tester (CTM/CTL)

A UK-based cyber security consultancy is seeking a CHECK Team Member or Team Leader certified Penetration Tester to join their growing offensive security team. This is an opportunity to work on high-assurance engagements across public and private sector clients, delivering technical assessments to support risk reduction, compliance, and threat readiness.

Key Responsibilities

• Deliver infrastructure and application penetration tests in line with CHECK/NCSC requirements
• Produce high-quality technical and non-technical reports with clear risk articulation
• Lead or contribute to Red Team, scenario-based and assurance testing engagements
• Liaise with clients pre- and post-engagement to scope, explain findings, and advise on remediation
• Maintain technical expertise in emerging tools, attack vectors, and testing methodologies
• Support internal knowledge sharing and mentoring of junior team members

Essential Requirements

• Current CHECK Team Member (CTM) or CHECK Team Leader (CTL) status
• Demonstrable experience delivering penetration testing across networks, applications, and cloud environments
• Strong working knowledge of tools such as Burp Suite, Cobalt Strike, Kali Linux, etc.
• Familiarity with reporting to NCSC standards and presenting findings to both technical and non-technical audiences
• Ability to obtain or hold SC clearance

Desirable

• OSCP, OSCE, or CREST CRT/CCT certifications
• Experience with Purple Teaming or threat-led assessments (e.g., CBEST/TIBER)
• Scripting knowledge in Python, PowerShell or similar

What's on Offer

• Competitive base salary dependent on experience and certification level
• Flexible remote-first working model
• Opportunities for progression within a growing cyber practice
• Training and certification budget to support continual development
• Private medical and pension scheme