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CREST Penetration Tester
Job in
Gloucester, Gloucestershire, GL1, England, UK
Listed on 2026-06-02
Listing for:
Oscar Associates Limited
Full Time
position Listed on 2026-06-02
Job specializations:
-
IT/Tech
Cybersecurity
Job Description & How to Apply Below
This role would suit someone with around 2-3 years of hands-on penetration testing experience who is looking to continue developing within a highly technical and supportive environment. Salary: £50-60k DOE Working Structure:
Remote with onsite client visits occasionally Security Clearance:
Beneficial but not required (SC/DV)
Certifications:
CREST CRT, OSCP (Essential)
The Role:
You'll be involved in delivering:
Web application penetration testing Infrastructure and internal network testing External vulnerability assessments Active Directory and privilege escalation testing Cloud security assessments across Azure/AWS Security reporting and remediation discussions with clients You'll work closely with senior testers and technical leads, gaining exposure to a wide variety of technologies, environments and engagement types. What They're Looking For: CREST Registered Tester (CRT) certification essential OSCP Certification Around 2-3 years of penetration testing experience Strong understanding of web application and infrastructure testing methodologies
Experience with tools such as Burp Suite, Nmap, Nessus, Metasploit, etc. Understanding of OWASP Top 10 and common attack vectors Strong report writing and communication skills Consultancy/client-facing experience beneficial Additional certifications such as CPSA or cloud security certifications would be advantageous. If you're a CRT-certified Penetration Tester looking to continue developing your offensive security career within a strong technical environment, please apply or reach out for a confidential conversation.
Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy. To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.
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