Penetration Tester

Lorien; England; Remote; GBP 40,000 - 70,000; Full time

Job summary

Join a leading cyber security team as a Penetration Tester working fully remotely within the UK. This role involves conducting ethical hacking and security testing to identify vulnerabilities in client systems. You'll benefit from a supportive environment, ongoing training, and the opportunity to work across diverse industries while improving your skills.

Benefits

Training and certification support - 30 days per year

25 days annual leave + UK bank holidays

Flexible, fully remote working environment

Opportunity to work on varied engagements

Qualifications

• Must be currently residing in mainland UK.
• 5 years UK residency for security clearance eligibility.
• Experience in performing penetration tests on various environments.

Responsibilities

• Plan and perform penetration tests on networks, applications, and systems.
• Deliver reports to clients based on test results.
• Stay updated on security vulnerabilities and techniques.

Skills

Penetration Testing

Security Testing Methodologies

Communication Skills

Scripting

Red Teaming

Education

CPSA, CRT or CCTIM Certified

OSCP, OSWE or other relevant certifications

Tools

Burp Suite

Nmap

Metasploit

Kali Linux

AWS

Azure

GCP

Job description

Lorien are seeking a talented and motivated Penetration Tester to join our clients growing cyber security team on a fully remote basis (mainland UK only).

You will be responsible for conducting ethical hacking and security testing engagements to identify vulnerabilities in client systems, applications, and infrastructure.

This is an exciting opportunity to work across a range of industries while further developing your skills in a supportive and professional environment.

Key Responsibilities

• Plan and perform penetration tests on networks, web applications, APIs, cloud environments, and other systems.
• Deliver clear, actionable technical and executive reports to clients.
• Collaborate with internal teams to ensure quality and compliance with best practices.
• Stay up to date with the latest vulnerabilities, attack techniques, and tools.
• Work within project deadlines and maintain clear communication with stakeholders.
• Maintain confidentiality and adhere to client security policies.
• CPSA, CRT or CCTIM Certified
• Must be currently residing in mainland UK.
• Eligible for UK security clearance (must have been a UK resident for at least 5 years).
• Experience conducting penetration tests (web, infrastructure, external/internal).
• Strong knowledge of security testing methodologies and frameworks (e.g., OWASP, NIST).
• Proficiency with industry-standard tools (e.g., Burp Suite, Nmap, Metasploit, Kali Linux).
• Excellent written and verbal communication skills.
• OSCP, OSWE, or other relevant certifications.
• Experience with red teaming or threat simulation exercises.
• Familiarity with secure coding practices and code review.
• Scripting experience (e.g., Python, Bash, PowerShell).
• Exposure to cloud platforms (AWS, Azure, GCP) and associated security testing.
• Flexible, fully remote working environment.
• Training and certification support - 30 days per year dedicated to personal development
• 25 days annual leave + UK bank holidays.
• Opportunity to work on varied and interesting engagements across sectors.

Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy.