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Lead Penetration Tester

Anson McCade
London
3 weeks ago
Applications closed

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🔐Penetration Tester – Infrastructure Focus

📍Location: London preferred (Hybrid)

💾Salary: £70,000 – £105,000 (London)

🧠Level: Senior Consultant to Principal Consultant (SC–PC)

⏱Flexible hybrid model | High-trust culture | Mission-critical work


🧭The Opportunity

Join a high-impact consultancy at the forefront of innovation and digital transformation. You’ll be part of a specialist team deliveringcritical infrastructure penetration testsacross some of the mostsensitive environments in the UK— from defence and national security to critical infrastructure and operational technology.


This isnot a web application role. We’re looking for an infrastructure-focused penetration tester with the technical confidence and consultancy mindset to work independently, lead engagements, and deliver real-world impact.


If you want to push beyond checklists and automated scans and intodeep, hands-on testing— this is the place to do it.


🔧What You’ll Be Doing

  • Deliver end-to-end infrastructure and internal network testing (Active Directory, internal corporate networks, etc.)
  • Identify and exploit vulnerabilities across complex environments with minimal documentation
  • Communicate technical findings through clear written reports and debriefs to a range of stakeholders
  • Support sensitive clients operating in production environments — where mistakes matter
  • Contribute to tooling, methodologies, and continuous improvement of team capability
  • Engage with a technical and non-technical audience, acting as a trusted security advisor


🧠What You Bring

Core Skills:

  • 4+ years of penetration testing experience (infrastructure/internal focus)
  • Strong hands-on expertise with Active Directory attacks, lateral movement, and privilege escalation
  • Experience navigating live and legacy production systems
  • Comfortable in Windows and Linux command-line environments

Desirable:

  • Python scripting or automation experience
  • Familiarity with OT (Operational Technology) networks
  • Experience with tools like CrackMapExec, BloodHound, PowerView, etc.

Certifications (a bonus, not a barrier):

  • CREST CTM, CTL, CSTM, Cyber Scheme Practitioner
  • OSCP
  • Lapsed certifications are fine if practical skills are strong


đŸ‘„Team & Work Environment

  • Tight-knit, high-performing team (2–3 people) with deep trust and autonomy
  • Remote-first culture (approx. 80% remote) with flexibility for client needs (up to 2 days per week on-site if required)
  • Fast-paced environment with complex technical challenges
  • Expect to hit the ground running – support is there, but this is a role for a self-starter
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