Penetration Tester Jobs

SmartSourcing Ltd · Manchester · £60,000 – £80,000 pa

This role involves conducting comprehensive penetration tests across networks, web and mobile applications, APIs, and cloud environments using both manual and automated techniques. The tester will simulate real-world cyberattacks, identify vulnerabilities, and produce detailed technical and executive reports with actionable remediation advice. A key focus is translating complex security findings for non-technical stakeholders while adhering to strict ethical and compliance standards in a security-cleared context.

VIQU IT · London · £60,000 – £65,000 pa

Deliver end-to-end penetration testing engagements, from scoping through to reporting and client debriefs, across web applications, APIs, infrastructure, networks, cloud and mobile environments. Work directly with clients on a consultancy basis, producing technical reports and contributing to proposals, capability development and tooling. Requires strong Burp Suite, web/API and infrastructure testing skills, with Red Teaming and cloud security experience desirable.

10Nex Consultancy · Grange, Greater London · £55,000 – £60,000 pa

Conducts penetration tests across web applications, infrastructure, cloud environments and APIs, with exposure to Active Directory, AWS/Azure/GCP and tools like Burp Suite, Kali Linux, Nmap and Metasploit. Owns testing engagements end to end, writes clear reports and advises clients on remediation, with scope to move into red teaming, assumed breach and AI security.

RMT Accountants & Business Advisors · Newcastle upon Tyne

Lead and deliver infrastructure, web application and cloud penetration testing engagements, plus Cyber Essentials Plus assessments and technical security reviews. As one of the practice's early senior hires, you will shape methodologies, assure report quality, mentor junior consultants and support pre-sales for a growing national cyber security consultancy.

TRIA · Manchester · £550 – £650 pd

SC Penetration Tester£600 - £700 A Day Outside IR356 MonthsRemote (Occasional Manchester travel)We are looking for a security cleared penetration tester to support a public sector customer to deliver high-assurance security testing.The role offers the opportunity to work on complex...

Pertemps Thames Water · Reading · £72,000 pa

Supports the design, implementation and maintenance of threat and vulnerability management controls across a large water utility's IT estate. Conducts network, application and code penetration testing, exploits vulnerabilities via proof-of-concept testing, and helps build an internal pen testing function. Works hybrid in Reading, liaising with Digital teams on remediation, patching and threat hunting.

Salt Search · London · £75,000 – £110,000 pa

This role involves conducting manual penetration testing and security assessments of web applications, APIs, and enterprise platforms. You will identify and exploit vulnerabilities, produce detailed technical reports, and work closely with application owners and security stakeholders to improve the organization's cyber resilience.

Akkodis · London

Hands-on penetration testing across web, API, infrastructure and cloud engagements for a predominantly commercial client base, combined with mentoring junior consultants and producing high-quality client reports. Works closely with the Head of Penetration Testing to shape and grow the service, including pre-sales and client discussions.