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Offensive Security Tester

Licensed sponsor United Kingdom Contract Posted 1 day ago

Job Title: Senior Red Team Operator / Offensive Security Specialist

Contract role-6+ months

Location: London, Bristol, Manchester, Leeds - Hybrid (2days/week)

We are looking for an experienced Offensive Security professional with expertise in Red Teaming, Threat Emulation, Penetration Testing, and Purple Teaming. The candidate will conduct advanced security assessments, simulate real-world cyberattacks, identify vulnerabilities, and evaluate detection and response capabilities. Experience in AI/LLM Security Testing, AI Red Teaming, MITRE ATT&CK, Adversary Emulation, and Cloud Security (AWS/Azure/GCP) is highly preferred.

Key Skills

  • Red Team Operations
  • Threat & Adversary Emulation
  • Penetration Testing
  • Purple Teaming
  • MITRE ATT&CK
  • AI/LLM Security Testing
  • Ethical Hacking
  • Cloud Security
  • Cobalt Strike, Metasploit, Burp Suite
  • Incident Response & Detection Validation

Preferred Certifications: OSCP, OSEP, CRTO, CRTP, GXPN, GPEN, CISSP.

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