CHECK Pen Tester , CSTM

Job description

BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing. Our AI-enhanced PTaaS and Adversarial Exposure Validation platforms deliver evidence-based risk insights for enterprises worldwide.

We are expanding our UK offensive security team and hiring a CHECK-certified Penetration Tester to support our growing portfolio of government and enterprise clients.

You must already have the legal right to work in the United Kingdom and be physically residing in the UK.

BreachLock cannot provide visa sponsorship for this role.

• Deliver CHECK-approved penetration tests across infrastructure, web applications, APIs, and cloud environments.
• Perform manual, high-depth testing and advanced exploitation aligned with industry standards (OWASP, NCSC, CREST).
• Support adversarial validation engagements, collaborating with internal and client security teams.
• Produce clear, actionable reports and present findings to technical and executive stakeholders.

• Valid CHECK certification (e.g., CRT or equivalent).
• Strong hands-on experience with network, application, and cloud penetration testing.
• Solid understanding of modern attack paths, exploitation techniques, and security controls.
• Proficiency with offensive tooling and scripting languages (Python, Bash, PowerShell).
• Excellent written and verbal communication skills.

• UK-remote role with flexible working, provided you reside in the UK.
• Work on cutting-edge PTaaS, CTEM, and AEV capabilities used by global enterprises and government clients.
• Fast-paced, high-impact environment with significant room for growth and specialization.
• Recognized by Gartner, GigaOm, and SANS as a global leader in automated and AI-powered offensive security.

Extra information

Status

Open

Education Level

Secondary School

Location

United Kingdom

Type of Contract

Casual / Part Time Jobs

Published at

18-12-2025

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English