Junior Pen Tester - Office-Based, Sponsored Certifications

Hamilton Barnes ?; Fareham; On-site; GBP 27,000 - 33,000; Full time

Benefits offered by this job

Career development programme

Sponsored certifications

Hands-on client engagements

Job summary

Hamilton Barnes is seeking a Junior Penetration Tester in Fareham for an office-based role. You will support penetration tests across networks, infrastructure, and web apps under the guidance of senior consultants, with a clear path to becoming a consultant through hands-on client work.

The role emphasizes learning through a structured development programme, sponsored certifications from day one, and exposure to real client engagements in a collaborative office setting.

Qualifications

• 3+ years of experience in an IT-based role.
• Demonstrable passion for cyber security through self-learning or certifications (e.g. eJPT, CompTIA PenTest+, CRT, OSCP).
• Solid understanding of networking fundamentals, Windows and Linux operating systems.
• Curious, analytical mindset with willingness to learn and take feedback.
• Good written and verbal communication skills; ability to explain technical findings clearly.
• Strong attention to detail and a methodical approach to problem solving.

Responsibilities

• Assist senior consultants in delivering penetration tests across networks, infrastructure, and web applications.
• Use industry-standard tools to identify and validate vulnerabilities under guidance.
• Develop practical knowledge of cloud and mobile testing through training and shadowing.
• Support pre-engagement activities, including scoping and information gathering.
• Contribute to technical reports documenting findings, vulnerabilities, and remediations.
• Present findings to clients as experience grows; stay updated on threats and techniques.
• Participate in knowledge sharing and collaborate with cyber security teams.

Skills

Cyber security passion

Networking fundamentals

Windows & Linux basics

Communication skills

Analytical mindset

Education

3+ years IT experience

Tools

TryHackMe

Hack The Box

Job description

Hamilton Barnes is seeking a Junior Penetration Tester in Fareham for an office-based role. You will support penetration tests across networks, infrastructure, and web apps under the guidance of senior consultants, with a clear path to becoming a consultant through hands-on client work.

The role emphasizes learning through a structured development programme, sponsored certifications from day one, and exposure to real client engagements in a collaborative office setting.