Security Consultant - CHECK Team Leader

This is a senior technical role leading penetration testing engagements, mentoring team members, and driving excellence in offensive cyber capabilities.

Responsibilities

• Lead and execute infrastructure and application penetration testing assignments for public sector and private clients.
• Supervise and mentor CHECK Team Members, ensuring high standards in reporting, methodology, and client communication.
• Develop, implement and review tactics, techniques, and procedures for red team and social engineering campaigns.
• Engage in regular knowledge transfer and technical development within the team.
• Maintain compliance with latest NCSC and UK Cyber Security Council requirements for CHECK Team Leaders.

Qualifications

• Hold a valid CREST CCT (App/Infra) or CyberScheme CHECK Team Leader (CTL-INF/APP) certification.
• Achieved the Principal or Chartered Cyber Security Professional title (UK Cyber Security Council – Security Testing specialism).
• Minimum two years’ experience as a CHECK Team Leader and three years’ professional penetration testing experience.

Required Skills

• Proven expertise in assessing Windows, Linux, cloud (AWS, Azure), and hybrid environments.
• Strong understanding of OWASP, MITRE ATT&CK, and red team methodologies.
• Excellent communication, technical documentation, and client-facing skills.

Preferred Skills

• Experience running red team, purple teaming exercises and developing engagement-specific tooling.
• Familiarity with Technical Surveillance and Counter Measures (TSCM), mobile app testing (iOS/Android), cloud security testing AI Security testing.
• Proven track record leading complex, multi-stage cyber security assessments.

Seniority level : Mid-Senior level

Employment type : Full-time

Job function : Information Technology

Industries : Computer and Network Security

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