Penetration Tester

Salary: £79,000 - 79,000 per year

Requirements:

• Commercial penetration testing experience within a consultancy or equivalent environment
• Strong technical reporting skills
• Experience conducting infrastructure and web application penetration tests
• Good understanding of Windows, Linux and Active Directory environments
• Familiarity with Azure and/or AWS security testing
• Experience using industry-standard penetration testing tools and methodologies
• Excellent written and verbal communication skills
• A passion for continuous learning and technical development
• Current CHECK Team Member (CTM) status
• Current SC Security Clearance, or eligibility to obtain it
• CREST CRT, Cyber Scheme CSTM or equivalent certification
• OSCP or equivalent practical penetration testing certification

Responsibilities:

• Deliver a wide range of technical security assessments across client environments
• Perform infrastructure and web application penetration testing
• Carry out cloud security assessments
• Produce clear, high-quality technical reports
• Present findings and remediation advice to clients
• Support vulnerability validation and re-testing
• Contribute to internal tooling, research and knowledge sharing

Technologies:

• AWS
• Active Directory
• Azure
• Cloud
• Support
• Linux
• Security
• Web
• Windows
• API
• Bash
• Mobile
• PowerShell
• Python

More:

We are Citation Cyber, one of the UKs leading cyber security consultancies, delivering penetration testing, Cyber Essentials certification, consultancy, training and managed cyber security services to organisations across the public and private sectors. We are an NCSC CHECK provider and CREST member company, growing our penetration testing team and offering a hybrid UK working environment with a competitive salary and benefits. We provide a varied mix of commercial, defence and public sector projects, funded training and industry certifications, clear progression into CHECK and senior technical roles, and a collaborative technical culture that encourages knowledge sharing, research and service development.

last updated 33 week of 2026