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Senior Penetration Tester, south west london
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Client:
Opus Recruitment Solutions
Location:
south west london, United Kingdom
Job Category:
Other
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EU work permit required:
Yes
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Job Views:
2
Posted:
24.06.2025
Expiry Date:
08.08.2025
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Job Description:
Opus is seeking an experienced Penetration Tester to join our client, a cyber consultancy specializing exclusively in penetration testing and red teaming. The role involves delivering high-impact, adversary-simulated engagements across infrastructure, web, cloud, and bespoke environments, including leading goal-based assessments and full-scale red team operations.
This client-facing, hands-on position is ideal for someone who thrives in technically demanding scenarios and prefers working with a small, elite team of offensive security specialists.
Key Responsibilities
* Lead and execute complex penetration tests and adversary simulations
* Deliver red team engagements aligned with frameworks like TIBER, CBEST, and MITRE ATT&CK
* Develop custom tooling and exploits as needed
* Create detailed technical and executive reports for clients
* Mentor junior testers and contribute to internal R&D
* Engage in continuous learning and threat landscape analysis
About You
* Proven experience in penetration testing and red teaming (internal, external, application, cloud, etc.)
* Strong understanding of attacker TTPs and detection evasion techniques
* Familiarity with frameworks such as OWASP, MITRE ATT&CK, and NIST
* Experience with C2 frameworks like Cobalt Strike, PoshC2, or Sliver
* Certifications such as OSCP, CRTO, OSEP, or CREST CRT are preferred but not mandatory
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