
Penetration Tester
Citation Cyber • United Kingdom
Role & seniority: Penetration Tester, entry-mid level (1+ year experience) in a consultancy setting; UK remote, full-time.
Stack/tools: Network/OS fundamentals; infrastructure and web application testing; industry-standard offensive security tools; opportunities for CREST track (CRT/CCT Web/CCT Inf).
Top 3 responsibilities
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Deliver infrastructure and web application penetration tests.
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Identify, exploit and validate security vulnerabilities; produce remediation guidance.
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Create high-quality technical reports; support client debriefs/remediation discussions; contribute to testing methodology improvements.
Must-have skills
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1+ year experience delivering penetration tests (infrastructure and/or web).
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Strong networking, OS and security fundamentals.
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Hands-on experience with industry-standard offensive security tools.
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OSCP, CRT or CSTM certification (essential).
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Clear, confident communication; UK citizen with eligibility for SC Clearance.
Nice-to-haves
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Willingness to pursue CREST certifications (CRT/CCT Web/CCT Inf) with funded progression.
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Experience across diverse engagements and industries; continuous learning mindset.
Location & work type: UK Remote, full-time; eligible for SC Clearance.
Full Description
Penetration Tester UK Remote | Full-time Are you passionate about ethical hacking and ready to take the next step in your penetration testing career? We’re looking for a motivated and technically capable Penetration Tester to join our growing cyber security team. You’ll work on real-world engagements across infrastructure, networks and web applications, helping organisations identify and remediate vulnerabilities before attackers can exploit them. This is an opportunity to be part of a consultancy that values technical excellence, continuous learning and high professional standards. What You’ll Be Doing Delivering infrastructure and web application penetration tests Identifying, exploiting and validating security vulnerabilities Producing high-quality technical reports with clear remediation guidance Supporting client debriefs and remediation discussions Contributing to the continuous improvement of testing methodologies What We’re Looking For 1+ year experience delivering penetration tests (infrastructure and/or web) Strong understanding of networking, operating systems and security fundamentals Hands-on experience with industry-standard offensive security tools OSCP, CRT or CSTM certification (essential) Clear and confident communication skills UK Citizen with eligibility for SC Clearance What You’ll Get Competitive salary 25 days holiday + Birthday off Contributory pension Healthcare plan Dedicated training budget Funded progression toward CREST certifications (CRT/CCT Web/CCT Inf) Remote working Clear career progression in a fast-growing cyber consultancy Why Join Us? You won’t just be running scans. You’ll be delivering meaningful security assessments that genuinely improve organisations’ resilience. We invest in our people, support certification progression, and provide exposure to varied, high-quality engagements across multiple sectors. If you’re ambitious, technically curious and want to develop your career in penetration testing we’d love to hear from you.