Infrastructure Penetration Tester

Salary: £40,000 - 50,000 per year

Requirements:

• We require a minimum of 2 years of hands-on industry experience in a penetration testing role.
• We need a strong technical understanding of network and cloud infrastructure.
• We expect knowledge of common vulnerabilities and risk mitigation strategies.
• We want a genuine passion for security.
• You must be able to manage your own workflow and timings in a fast-paced environment.
• You should have a drive to develop and progress within the team and the company.
• We value meticulous attention to detail and a commitment to quality.
• You must have lived in the UK for at least the past 5 years and be willing to undergo security vetting.
• Industry certifications such as OSCP, CRT, or CSTM are desirable.
• Experience with scripting languages such as Python, Bash, or PowerShell is desirable.
• Security Clearance such as BPSS, SC, or DV is desirable.

Responsibilities:

• Support our team on infrastructure penetration tests, including broader vulnerability assessments and security audits as needed.
• Contribute to clear, professional reports tailored to both technical and non-technical audiences.
• Contribute to client debriefs following engagements, explaining findings clearly to technical and non-technical audiences.
• Stay current with emerging security threats, tools, and industry trends.
• Travel to client sites in the UK when necessary, although this is extremely rare.
• Help improve our methodologies, documentation, tools, and processes.
• Work collaboratively with both our infrastructure and web application teams.
• Manage multiple client engagements effectively.
• Build strong, trusted relationships with clients as a reliable security partner.

Technologies:

• Bash
• Cloud
• DevSecOps
• Support
• Network
• PowerShell
• Python
• Security
• Web

More:

We are Punk Security, a fast-growing, CREST-accredited cyber security consultancy with a strong focus on honest, high-quality security solutions. We specialise in DevSecOps and hands-on penetration testing, helping organisations build secure systems from the ground up. We are hiring junior and mid-level penetration testers to join our infrastructure team and work on a broad range of technologies and challenges. We offer a supportive, expert-led environment where your voice matters, along with opportunities for travel, training, industry certifications, potential performance bonuses, private health cover including dependents up to age 18, and a Northallerton office with excellent transport links, free onsite parking, and nearby gyms and restaurants. We also promote an inclusive, diverse, respectful workplace and actively encourage applications from veterans, reservists, and service leavers. The role is full-time, permanent, can be remote, and offers a salary of £40,000 to £50,000 per year.

last updated 40 week of 2026