Posted 20 days ago
Description
Security Testing Consultant (Pen Tester)
Location: London SE1
Salary: £45,000 - £60,000 depending on relevant experience
Hours: Full-time, Monday to Friday
Work Location: Office-based during probation, then hybrid (3 days office / 2 days WFH)
Full time / Permanent
Role Overview
As a Security Testing Consultant (Pen Tester), you will play a vital role in identifying and mitigating vulnerabilities in client systems including applications, infrastructure, cloud platforms, APIs, and mobile technologies. You'll be part of a collaborative team, providing expert guidance and helping to ensure the highest standards of cybersecurity.
Key Responsibilities
- Deliver penetration testing across web, cloud, mobile, and infrastructure
- Conduct black box, grey box, and white box testing
- Produce detailed reports and deliver findings to clients
- Advise clients on remediation strategies and provide post-test support
- Support team knowledge sharing and mentor junior consultants
- Participate in Red Team activities and social engineering assessments
- Contribute to evolving internal processes and methodologies
Essential Qualifications
- 3-5 years of hands‑on penetration testing experience
- Strong understanding of OWASP and vulnerability testing standards
- Proficiency with tools such as Kali, Burp Suite, Nmap, Nessus, Metasploit
- Knowledge of cloud platform testing (AWS, Azure, GCP)
- Strong reporting and client communication skills
- Relevant qualifications such as CREST CRT, OSCP, OSCE, or CCT
Desirable
- Familiarity with CI/CD environments and containerisation
- Programming and scripting knowledge
- Red Team or bug bounty experience
- Experience with CobaltStrike, IoT, or hardware security
Key Attributes
- Organised, proactive, and analytical
- Strong communicator with a collaborative mindset
- Able to manage time effectively across multiple assignments
- Detail‑oriented with a commitment to high‑quality documentation
