Remote Senior Penetration Tester - Cyber Security Consultancy

Haystack • United Kingdom
Remote
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AI Summary

Seeking a Senior Penetration Tester for a high-growth cyber-sec consultancy focusing on critical infrastructure and digital currencies. Responsibilities include leading infrastructure, web, and mobile penetration tests, advanced cloud assessments, and vulnerability research. Requires 4+ years of experience, mastery of security tools, and eligibility for UK Government Security Clearance.

Key Highlights
Lead and deliver high-quality penetration tests across infrastructure, web applications, and mobile apps.
Conduct advanced cloud security assessments (AWS, Azure, GCP) and research/develop bespoke tooling.
Requires 4+ years of experience, relevant certifications, and UK Government Security Clearance eligibility.
Key Responsibilities
Lead and deliver high-quality infrastructure, web application (including APIs), and mobile app penetration tests.
Conduct advanced cloud security assessments across AWS, Azure, and GCP environments to identify misconfigurations and risks.
Research and develop bespoke tooling and threat libraries to automate discovery and improve testing methodologies.
Translate complex technical vulnerabilities into actionable, business-risk-focused reports for C-suite and technical stakeholders.
Support clients during active incidents and provide expert guidance on remediation and hardening strategies.
Technical Skills Required
Penetration Testing AWS Azure GCP Burp Suite Metasploit Nessus Nmap Kali Linux Wireless Networks Network Segmentation Breakout Assessments APIs
Benefits & Perks
Highly competitive salary of £70,000 - £80,000
6% contributory pension
Remote-first culture
Generous training budget
Dedicated time for original security research
Nice to Have
CREST-certified
CRT certification
OSCP certification
CTM certification
CTL certification

Job Description


Remote Senior Penetration Tester - Growing Cyber-Sec Consultancy

We're working with a high-growth, CREST-certified cybersecurity consultancy that protects critical national infrastructure and global digital currencies on this exciting opportunity. We are looking for a tenacious Senior Penetration Tester to join an elite team of experts dedicated to breaking new ground in offensive security and cloud assurance.

This is a chance to move beyond "box-ticking" audits and engage in deep-dive research, vulnerability discovery, and complex testing across diverse environments including AWS, Azure, and mobile platforms. You’ll leverage professional development budgets and dedicated research time to sharpen your edge and stay ahead of emerging threat vectors.

The Role

  • Lead and deliver high-quality infrastructure, web application (including APIs), and mobile app penetration tests.
  • Conduct advanced cloud security assessments across AWS, Azure, and GCP environments to identify misconfigurations and risks.
  • Research and develop bespoke tooling and threat libraries to automate discovery and improve testing methodologies.
  • Translate complex technical vulnerabilities into actionable, business-risk-focused reports for C-suite and technical stakeholders.
  • Support clients during active incidents and provide expert guidance on remediation and hardening strategies.

What You'll Need

  • 4+ years of hands-on experience in penetration testing within a professional consultancy or enterprise environment.
  • Mastery of industry-standard tools such as Burp Suite, Metasploit, Nessus, Nmap, and Kali Linux.
  • Proven track record in testing wireless networks, network segmentation, and breakout assessments.
  • Strong certifications such as CRT, OSCP, CTM, or CTL (or the active desire to achieve these with company sponsorship).
  • Eligibility for UK Government Security Clearance (ILR required as a minimum) and excellent communication skills.

What's On Offer

  • Highly competitive salary of £70,000 - £80,000 plus a 6% contributory pension.
  • Remote-first culture with a focus on work-life balance and autonomous working.
  • Generous training budget and dedicated time for original security research and thought leadership.
  • Clear, structured career progression within a rapidly expanding specialist consultancy.

Apply via Haystack today!


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