Ready to take the next step in your career?
Join the world's first AI-managed IT and security platform, replacing the traditional MSP model with a single fixed-price subscription covering managed IT, defensive security, and unlimited offensive testing. Serving customers across 90+ countries with agentic AI running through every layer of operations, the UK-headquartered organization holds ISO 27001, PCI-DSS, and CREST certifications.
This is a great opportunity for a Senior Penetration Tester to deliver hands-on testing across infrastructure, networks, web applications, and APIs for varied client environments. The ideal candidate will work on technically challenging engagements while contributing to a wider security operation, rather than simply delivering standalone penetration tests.
Responsibilities
- Deliver infrastructure, network, web and API penetration tests.
- Identify and exploit vulnerabilities and realistic attack paths.
- Conduct manual testing alongside automated tooling.
- Produce clear, technically detailed client reports.
- Present findings and remediation advice to clients.
- Contribute to offensive security methodologies and tooling.
- Support junior testers and share technical knowledge.
Skills/Must Have
- 3+ years' commercial penetration testing experience.
- Strong understanding of offensive security methodologies.
- Infrastructure, network and web application testing experience.
- Good understanding of Active Directory and Windows.
- Experience with Burp Suite, Nmap, Metasploit and Kali.
- Scripting experience with Python, PowerShell or Bash.
- Strong communication and client-facing skills.
- Curious, technically minded and solution-oriented approach.
Desirable Skills
- CREST CRT/CCT
- Other recognised offensive security certifications
- Certifications are desirable, not essential. Commercial experience and hands-on technical capability are the priority.
Benefits
- Work across varied and technically challenging client environments.
- Join an established offensive security function with genuine technical depth.
- Develop your skills across penetration testing and wider offensive security.
Salary
- £50,000 - £65,000 depending on experience
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Senior Penetration Tester - Consultancy employer: Hamilton Barnes
Hamilton Barnes is an exceptional employer for those passionate about live sports broadcasting, offering a dynamic work environment that thrives on teamwork and innovation. With opportunities for professional growth and development in cutting-edge technology, employees enjoy a supportive culture that values their contributions, all while being part of the excitement surrounding Premier League matchday coverage. The shift-based nature of the role allows for flexibility, and the potential for overtime ensures that hard work is rewarded.
