Penetration Tester

Opus Recruitment Solutions; Remote; GBP 50,000 - 100,000; Full time

Job summary

A leading security consultancy is seeking a CHECK Penetration Tester to join their new UK team. This role involves delivering advanced penetration testing across diverse environments, leading high-profile engagements, and producing actionable reporting. Candidates must have active CHECK certification and a strong background in offensive security. The position offers flexibility, autonomy, and the opportunity to work on exciting, meaningful projects. Join a growing team that values technical excellence and research-driven solutions.

Benefits

Fully remote work

Flexible schedule

Opportunity for research contribution

Qualifications

• CHECK certification essential.
• Experience in penetration testing and vulnerability research.
• Ability to work independently and lead projects.

Responsibilities

• Deliver advanced penetration testing across various environments.
• Lead CHECK engagements for high-profile clients.
• Produce high-quality reporting and technical debriefs.

Skills

Active CHECK certification (CTM or CTL)

Strong background in offensive security

Experience delivering high quality testing across multiple domains

Ability to work autonomously

Strong communication skills

Passion for advanced testing

Job description

CHECK Penetration Tester – UK Remote - £50,000 - £100,000

Elite Offensive Security Consultancy | Advanced Testing | High‑Impact Engagements

I’ve recently partnered with a leading advanced penetration testing consultancy that is expanding its presence into the UK. As part of this growth, they are looking for experienced CHECK certified penetration testers to join their newly forming UK team.

This is not your typical testing role. This consultancy is widely recognised for its deep technical capability, research driven approach, and highly complex offensive security engagements. With increasing demand across the UK, they are building a specialist team of top tier testers who want to work on meaningful, challenging, and genuinely exciting projects.

If you’re a CHECK certified tester who thrives on advanced technical work, autonomy, and pushing the boundaries of offensive security, this is the kind of role that elevates your career.

What You’ll Be Doing

• Delivering advanced penetration testing across a wide range of environments (infrastructure, cloud, applications, mobile, and more)
• Leading and contributing to CHECK engagements for high‑profile clients
• Supporting and participating in red team and threat led operations
• Producing high quality, actionable reporting and technical debriefs
• Working closely with clients to understand objectives and deliver meaningful security outcomes
• Contributing to internal research, tooling, and capability development
• Helping shape the UK team’s technical direction as the consultancy expands its footprint

What They’re Looking For

• Active CHECK certification (CTM or CTL) essential!
• Strong background in offensive security, penetration testing, and vulnerability research
• Experience delivering high quality testing across multiple domains
• Ability to work autonomously in a senior, trusted capacity
• Strong communication skills and the ability to translate technical findings into real world impact
• A passion for advanced testing, research, and continuous improvement

What’s On Offer

• Join a brand new UK team backed by a globally respected offensive security consultancy
• Work on high impact, advanced engagements, not repetitive or low complexity testing
• Influence the direction, culture, and technical standards of a growing UK function
• Collaborate with some of the most technically capable testers and researchers in the industry
• Fully remote role with flexibility, autonomy, and trust
• Opportunity to contribute to tooling, research, and cutting edge offensive security methodologies