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# Penetration Tester

- **Company:** Impellam Group
- **Location:** London, UK
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Software System Penetration Testing, Cyber Security, Continuous Integration, Linux, Network Security, Web Application Security, Software Vulnerability Management, Cloud Platform System, Infrastructure as Code (IaC), GWAPT, Vulnerability Analysis
- **Published:** September 21, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/penetration-tester/47827187

## About the Role

infrastructure, applications and cloud environments against current threats. Communicating complex technical findings to both technical and non-technical stakeholders. What We're Looking For Strong experience in Penetration Testing and Offensive Security. Expertise across one or more of the following areas:* Windows Infrastructure * Linux Infrastructure * Network Security * Cloud Environments * Web Application Security * Containerised Platforms * Infrastructure as Code (IaC) * CI/CD Security Strong knowledge of Information Security principles and vulnerability management. Experience communicating findings and working directly with technical stakeholders. Desirable Certifications ️ OSCP, OSCE, OSEP️ GPEN, GXPN, GWAPT, GRTP, GDSA️ CREST or equivalent security certifications DV Clearance Eligibility Requirements * UK residency history with a clear and verifiable background. * Strong financial integrity with no significant unresolved issues. * Ability to successfully undergo
enhanced security vetting and referencing.Apply now if interested!Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.

## Description

Sector: Cyber SecurityReference: BBBH188229_1789489281PENETRATION TESTER / OFFENSIVE SECURITY CONSULTANT | DV ELIGIBLE | LONDON| 5 days a week on-siteLooking for your next penetration testing contract?We're seeking experienced Penetration Testers / Offensive Security Consultants to help identify vulnerabilities across a complex technology landscape. This is an opportunity to work on meaningful security challenges, conducting real-world security assessments across infrastructure, cloud, applications and modern platforms.Location: London Contract: Long-term ContractDV Clearance Eligibility Required What You'll Be Doing Conducting penetration testing and vulnerability assessments across a range of environments. Simulating real-world attack scenarios to identify security weaknesses and risks. Producing high-quality technical reports with practical remediation recommendations. Working closely with security teams, engineers and system owners to improve security posture. Assessing