
Oscar Associates Limited
Penetration Tester - UK
Job Description
Salary: £50,000 - 50,000 per year
Requirements:- Active SC clearance
- Current CHECK Team Member status
- Proven experience delivering penetration testing engagements
- Knowledge of infrastructure, web application, and cloud security testing
- Strong report writing and communication skills
- Excellent understanding of common vulnerabilities, attack techniques, and security best practices
- Willingness to travel to client sites occasionally
- Deliver CHECK penetration testing engagements across client environments
- Conduct infrastructure, web application, cloud, and Active Directory security assessments
- Identify vulnerabilities and provide practical remediation advice
- Produce clear, high-quality technical reports for clients
- Support and collaborate with a wider team of cyber security consultants on varied projects
- Maintain testing activities in line with NCSC CHECK methodologies
- Active Directory
- Cloud
- Support
- Security
- Web
More:
We are a growing UK cyber security consultancy delivering penetration testing services to government and public sector organisations. This is a permanent, full-time remote role based in the United Kingdom, with around 90% remote working and occasional on-site client visits; all travel expenses are covered. We offer a salary of £40,000 - £50,000 depending on experience, fully expensed client visits, and a company pension scheme. This is a great opportunity for an experienced penetration tester who wants to work on a broad range of challenging engagements.
last updated 31 week of 2026
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About Oscar Associates Limited

Oscar Associates Limited
UK
IT
Skills & Technologies
Inferred from job description
Salary Insight
£50,000
This role
£55,000
UK median
This salary is 9% below the UK median for UK tech roles (£55,000/yr).
Based on 2024–2025 UK technology sector benchmarks