Penetration Tester – CTM

Company: Oscar
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Job Description:

We’re working with a growing UK cyber security consultancy delivering penetration testing services to government and public sector organisations.

They’re looking for a Cyber Security Consultant / Penetration Tester to join the team delivering security testing across a variety of environments.

This is a great opportunity for someone with hands-on pen testing experience and ambition to maintain SC clearance who wants to work across a range of interesting security engagements.

Location: Remote with onsite client testing when required

What you’ll be doing:

  • Delivering penetration testing engagements across client environments
  • Testing infrastructure, web applications, cloud environments and Active Directory
  • Identifying vulnerabilities and providing remediation guidance
  • Writing clear technical reports for clients
  • Working with a collaborative cyber security team on varied projects

What they’re looking for:

  • CHECK Team Member status
  • SC Clearance (essential)
  • Experience performing penetration testing / security testing
  • Knowledge of infrastructure, web app or cloud security testing
  • Experience writing technical security reports
  • Strong understanding of common vulnerabilities and attack techniques

Active SC clearance is a requirement and must be willing to pursue DV Clearance

  • 31 Days Annual Leave (20 + 8 BH + 3 Xmas Shutdown)
  • Paid Charity Day
  • Up to 5 unpaid annual leave days per year
  • Company pension scheme

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Posted: September 20th, 2026