Security Consultant

Company: Intruder Systems Ltd
Apply for the Security Consultant
Location: London
Job Description:

Security Consultant

What we’re offering (we know, everyone jumps to this section first!)

  • Salary of £40,000 – £55,000
  • Share options so you benefit from our success
  • 28 days paid holiday plus bank holidays, and an additional 5 unpaid if you want. Once you reach 3 years of service, you get an extra day of paid holiday every year until 7 years at Intruder
  • Flexible working – much of the Security team works from home, but we have the option of an office in Shoreditch
  • Regular (optional) socials and yearly off‑site for the whole company. We’ve hit Croatia, Costa Brava and this year we’re going surfing in Portugal!

As a small but growing team, we’re flexible and offer a level of autonomy that allows you to make meaningful and lasting contributions to Intruder and our customers.

We’re looking for a Security Consultant to facilitate the day‑to‑day running of the Intruder platform, and deliver Premium consultancy services including pentesting. This role is varied and includes:

  • Writing easy‑to‑understand descriptions for new security vulnerabilities in the Intruder platform
  • Scan triage: Assessing customer scan results for escalations, and removing false positives
  • Developing cloud security checks using Prowler (Python)
  • Bug hunting & pentesting: manual deep dives on applications, APIs, and external infrastructure
  • Providing technical assistance on client calls, such as scoping & customer success catchups
  • Security research projects & writing technical content for our website

What we think you’ll need to be successful:

  • Some proven experience or qualifications in offensive security. For example:
    • Academic background in cyber security or software engineering
    • Industry experience as a penetration tester or software engineer
    • A proven track record on bug bounty or hacking platforms
    • Industry qualifications such as:
      • CREST Practitioner Security Analyst (CPSA)
      • CREST Registered Penetration Tester (CRT)
      • CREST Certified Web Application Tester (CCT APP)
      • Offensive Security Certified Professional (OSCP)
      • Offensive Security Web Expert (OSWE)
  • Comfortable with client‑facing calls in a consultancy setting
  • Excellent technical reporting skills

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Posted: May 24th, 2026