Security Testing Lead

Company: Oscar
Apply for the Security Testing Lead
Location: London
Job Description:

Security Testing Practice Lead | £80-90k | London (Hybrid)

We’re working with a growing, private equity-backed cyber security consultancy looking to hire a Security Testing Practice Lead to take ownership of their security testing function.

This is a hands-on leadership role, combining technical delivery with practice growth, team development, and client engagement – ideal for someone operating at (or ready to step into) a leadership role while still staying close to the tech.

Location: London (3 days onsite)

Package: Competitive

The Role:

You’ll be responsible for leading and scaling the security testing practice, ensuring high-quality delivery across engagements while shaping the future direction of the service offering.

This includes owning delivery standards, supporting commercial activity, and mentoring a team of testers – all while remaining hands‑on where needed.

You’ll also play a key role in evolving the practice into new areas such as AI / LLM security testing, helping define new services in line with market demand.

Key Responsibilities:

  • Lead and develop the security testing practice (services, tooling, methodologies)
  • Oversee delivery across testing engagements (web, API, infra, cloud, mobile)
  • Ensure quality, consistency, and technical excellence across all outputs
  • Support pre‑sales, scoping, and client engagement activities
  • Manage team utilisation, capacity, and performance
  • Mentor and develop testers, driving a strong technical culture
  • Own reporting standards and delivery methodology (OWASP, PTES, OSSTMM)
  • Contribute to practice growth and new service development (incl. AI security)

Key Skills & Experience:

  • Strong hands‑on background in penetration testing / security testing (CHECK / CREST or equivalent)
  • Experience across web apps, APIs, infrastructure, and cloud (AWS/Azure/GCP)
  • Solid understanding of modern attacker techniques and threat‑led testing approaches
  • Experience with tools such as Burp Suite, Nmap, Nessus, Qualys, Metasploit, Kali
  • Experience leading or mentoring teams (or ready to step up)
  • Ability to engage with clients and support commercial discussions
  • Strong reporting and stakeholder communication skills (technical & non‑technical)
  • Understanding of delivery processes, QA, and scaling services

Nice to Have:

  • Red team / social engineering experience
  • Exposure to AI / LLM security testing
  • Certifications such as CREST, OSCP, OSWE, CISSP or CHECK
  • Experience in consultancy environments

This is a great opportunity to step into a role where you can shape and own a security testing function, not just deliver within one.

Apply now!

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Posted: May 19th, 2026