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Penetration Tester

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360 Resourcing Solutions

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Location:
United Kingdom

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Category:
IT - Software Development

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Contract Type:
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Salary:

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Job Description:

Are you an ambitious cybersecurity professional with a passion for uncovering vulnerabilities and strengthening digital defences? Join Trustmarque’s Security Testing Practice as a Penetration Tester and play a key role in protecting our clients’ critical systems. Working alongside experienced consultants, you’ll deliver high-quality penetration testing engagements, contribute to continuous improvement, and grow your expertise in a collaborative, knowledge-sharing environment.

Job Responsibility:

  • Keep your penetration testing qualifications current and continue developing your technical expertise in line with business needs
  • Support the delivery of IT Health Checks and penetration tests, identifying vulnerabilities and providing clear, actionable recommendations to clients
  • Work closely with senior consultants, sharing insights and best practices while contributing to a culture of learning within the Security Testing Practice
  • Expand your skill set to offer a range of security testing services that support evolving business and client requirements

Requirements:

  • Hands-on experience in penetration testing or IT Health Check delivery
  • Current penetration testing qualification such as CREST Practitioner Security Analyst (CPSA), Crest Registered Tester (CRT), or Cyber Scheme Team Member (CSTM)
  • 2+ years of penetration testing experience (or equivalent practical experience)
  • Eligibility to obtain and maintain UK security clearances
  • Familiarity with common tools such as Burp Suite, Nmap, Nessus, Metasploit, etc.
  • Understanding of network protocols (TCP/IP, OSI model) and common web application vulnerabilities

Nice to have:

  • Passionate about the full security lifecycle
  • Engage confidently with technical and non-technical stakeholders
  • Demonstrate curiosity, adaptability, and a solution-focused mindset
  • Translate complex technical findings into clear, accessible reports
What we offer:
  • We offer competitive pay, 25 days holiday (rising to 27), 2 volunteering days, 1 personal day, plus bank holidays
  • Our benefits include a company-matched pension, life assurance, enhanced parental leave, cycle2work scheme, and more

Additional Information:

Job Posted:
January 22, 2026

Work Type:
Remote work
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