3 of 3 Permanent Offensive Security Jobs in the City of London

Offensive Security Tester (Red Team) London/WFH to £70k Opportunity to progress your career as an Offensive Security Tester at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; you'll be working on Greenfield projects, collaborating with and learning from a hugely talented team. Your … role: As an Offensive Security Tester you will manage client engagements, perform security tests and report findings; you'll be using industry standard combined with in-house developed tools as well as carrying out manual reviews to discover any issues with customer infrastructure and web applications. You'll be pro-active and will have the opportunity within … a Russel Group or top tier world university - Computer Science, Engineering, Physics or Mathematics; MSc or PhD advantageous You're OSCP or CRT certified You have commercial experience with Offensive Security, Red Team testing or Penetration testing You have a keen interest in Cyber Security and understanding of key concepts and protocols You can code with any More ❯

Senior/Principal Offensive Security Consultant £100k Location: Hybrid (2 days per month in London) Salary: £80,000 - £100,000 + benefits Are you a Senior Offensive Security Consultant or Principal Penetration Tester ready to take the next step into Red Teaming and Adversarial Simulation ? This is your opportunity to join an agile, rapidly growing UK … cyber security consultancy where you can own and shape an entire offensive service line , build advanced infrastructure, and contribute to research and tooling that truly make an impact. About the Role As a Senior/Principal Offensive Consultant , you'll lead complex technical engagements that go beyond standard penetration testing - focusing on advanced exploitative infrastructure testing , Active … initiatives - including whitepapers, presentations, and thought leadership. Mentor junior consultants, helping grow the internal capability and knowledge base. About You You'll be an experienced Penetration Testing Consultant/Offensive Security Professional who combines strong technical capability with commercial awareness and client empathy. You'll thrive on pushing boundaries, building new services, and seeing your work directly shape More ❯

Role: Red Team Operator Rate: TBC Location: London, City. Contract length: 5 months -> Perm Conversion Requirements: 3+ years of experience in offensive security, including red teaming and penetration testing Strong understanding of the MITRE ATT&CK framework and threat emulation methodologies Proficiency in offensive tools (Cobalt Strike, Sliver, Metasploit, etc.) and custom payload development Experience with evasion More ❯