CHECK TEAM LEADER

LT Harper Group; United Kingdom; Remote; GBP 65,000 - 90,000; Full time

Job summary

LT Harper Group is seeking a CHECK Team Leader to steer infrastructure engagements for UK Government, Defence, and regulated sectors. You will oversee hands-on testing, shape testing methodology, and guide reporting standards while leading a small team of testers.

Based in the UK and fully remote, you will work with customers to deliver secure infrastructure assessments across Windows, Linux, and AD, with cloud/hybrid testing where needed, and mentor junior testers to raise overall capability.

Qualifications

• Current CHECK Team Leader status for Infrastructure.
• Current SC clearance.
• Strong hands-on infrastructure testing across Windows, Linux, Active Directory and network services.
• Experience leading engagements and working directly with customers.
• Clear technical reporting, including explaining risk to non-technical stakeholders.
• Experience supporting or mentoring other testers.

Responsibilities

• Lead internal and external infrastructure tests to CHECK requirements, from scoping and planning through to delivery.
• Test Windows, Linux and Active Directory environments, including segmentation, authentication and access controls.
• Extend testing into cloud and hybrid environments where an engagement needs it.
• Write clear reports with risk ratings and practical remediation advice, and present findings to technical and non-technical audiences.
• Provide technical leadership and quality assurance for other penetration testers.
• Help improve testing methodology, tooling and reporting standards.

Skills

Infrastructure testing

Leadership

Mentoring

Technical reporting

Customer engagement

Python scripting

PowerShell scripting

Bash scripting

Windows testing

Linux testing

Active Directory

Cloud testing

Azure

AWS

Tools

Windows

Linux

Active Directory

Azure

AWS

Network services

Job description

You'll lead CHECK infrastructure engagements for a UK technology consultancy working across Government, Defence and other regulated sectors. As well as hands-on testing, you'll help shape how the security testing capability grows, with a real say in methodology, tooling and reporting standards.

The essentials

• Location: fully remote, UK-based
• Level: CHECK Team Leader, providing technical leadership to other testers

What you'll actually do

• Lead internal and external infrastructure tests to NCSC CHECK requirements, from scoping and planning through to delivery.
• Test Windows, Linux and Active Directory environments, including segmentation, authentication and access controls.
• Extend testing into cloud and hybrid environments where an engagement needs it.
• Write clear reports with risk ratings and practical remediation advice, and present findings to technical and non-technical audiences.
• Provide technical leadership and quality assurance for other penetration testers.
• Help improve testing methodology, tooling and reporting standards.

What you'll need

• Current CHECK Team Leader status for Infrastructure.
• Current SC clearance.
• Strong hands-on infrastructure testing across Windows, Linux, Active Directory and network services.
• Experience leading engagements and working directly with customers.
• Clear technical reporting, including explaining risk to non-technical stakeholders.
• Experience supporting or mentoring other testers.

Nice to have:

• Testing within Government, Defence or other regulated environments.
• Cloud or hybrid testing across Azure or AWS.
• Red team, wireless or exploit development experience.
• Scripting in Python, PowerShell or Bash.

What's in it for you

• Fully remote working from anywhere in the UK.
• A balance of hands-on testing and engagement leadership.
• A real part in building the consultancy's testing capability.
• Work across a broad range of complex customer environments.