CHECK Team Leader: Penetration Tester (Hybrid)

CBSbutler; Gloucester; Hybrid; GBP 80,000 - 100,000; Full time

Benefits offered by this job

Company benefits package

Training & certification support

Conference access

Hybrid work schedule

Job summary

CBSbutler is seeking an experienced Lead Penetration Tester / CHECK Team Leader (CTL) to join a growing Offensive Security team within a defence and cyber security environment in Bristol. The role offers technical leadership, mentoring of junior consultants and involvement in service development.

The candidate will lead testing across infrastructure, applications, cloud and OT, deliver detailed reports, and drive security improvements while staying current with threats and industry best

Qualifications

• Current CREST CHECK Team Leader (CTL) qualification is essential.
• Hands-on penetration testing across infrastructure, applications, cloud or complex environments.
• Experience planning, leading and delivering penetration testing engagements.
• Excellent technical report writing; able to communicate findings to technical and non-technical audiences.
• Strong stakeholder management and client-facing consulting skills.
• Good understanding of cyber security frameworks, standards and best practices.
• Experience with scripting/automation (Python/PowerShell/Bash).
• Ability to obtain SC Security Clearance, potentially progressing to higher levels.

Responsibilities

• Lead and deliver penetration testing engagements across infrastructure, web apps, APIs, cloud, OT.
• Plan and scope testing engagements per NCSC CHECK standards and best practices.
• Provide technical leadership and QA across penetration testing activities.
• Produce detailed technical and executive reports with remediation guidance.
• Collaborate with customers and stakeholders to meet security requirements.

Skills

Penetration testing

CHECK CTL qualification

Scripting (Python/PowerShell/Bash)

Leadership

Stakeholder engagement

Job description

CBSbutler is seeking an experienced Lead Penetration Tester / CHECK Team Leader (CTL) to join a growing Offensive Security team within a defence and cyber security environment in Bristol. The role offers technical leadership, mentoring of junior consultants and involvement in service development.

The candidate will lead testing across infrastructure, applications, cloud and OT, deliver detailed reports, and drive security improvements while staying current with threats and industry best