Role: Penetration Tester (Infrastructure Focus) 🛡️
Work Type & Location: Hybrid – London preferred (other UK cities possible) 🏙️
Role Type: Permanent 💼
Salary: £70,000–£105,000 (London) depending on experience 💰
Other regional packages available for Cambridge, Manchester, Bristol, or Edinburgh
Our client – a global innovation consultancy – is expanding its Digital & Data capability and is on the lookout for an experienced Penetration Tester (Infrastructure Focus) to join a high-trust, hands-on team. This role is all about deep technical work inside live infrastructure environments – think Active Directory, internal networks, and sensitive systems where precision matters.
If you’re the kind of tester who thrives in complex, undocumented environments and enjoys real-world impact over checkbox testing, this is the challenge for you.
🔍 As a Penetration Tester (Infrastructure Focus), you will:
* Deliver internal infrastructure tests in high-risk, high-impact environments
* Focus on Active Directory, lateral movement, and privilege escalation techniques
* Communicate directly with clients to present findings and advise on remediation
* Produce clear, actionable reports for both technical and non-technical stakeholders
* Contribute to improving internal tooling and methodologies
* Work with autonomy and initiative – this is a consulting-facing role requiring independence
🎯 What you bring:
* 4+ years of hands-on experience in infrastructure penetration testing
* Strong expertise in AD exploitation, lateral movement, and privilege escalation
* Confident working in live production and legacy environments
* High command-line fluency (Windows & Linux)
* Strong client communication and reporting skills
🌟 It’d be great if you also have:
* Python scripting skills for tooling or automation
* Experience or awareness of Operational Technology (OT) environments
* Familiarity with internal exploitation tools and techniques
* Certifications like CREST CTM/CTL/CSTM, Cyber Scheme Practitioner, or OSCP (lapsed certs accepted if skills are current)
🧠 What to expect:
* A small, high-trust team (2–3 testers) operating with autonomy and technical depth
* Hybrid work model (typically remote 80% of the time), with 2 days/week on-site or at client locations
* Meaningful projects in defence, critical infrastructure, and high-security sectors
* Real responsibility and room to influence tooling, process, and delivery
* A hands-on technical interview including an AD lab simulation and live debrief
📍 Location & Clearance:
* London preferred, but open to candidates UK-wide based on flexibility
* Must be SC clearable (current SC clearance is a strong advantage)
Other regional packages available for Cambridge, Manchester, Bristol, or Edinburgh
Apply now to become a Penetration Tester (Infrastructure Focus) and help secure the systems that matter most.