Vulnerability Researcher Remote Up to £135k + Benefits - #1798357

Circle Group


Date: 17 hours ago
City: Bristol
Contract type: Full time
Work schedule: Full day
Circle Group
Vulnerability Researcher - Remote | Up to £135k + Benefits | UK, US, Australia, New Zealand

Our client is a deep-tech firm trusted by governments and defence organisations for the kind of work that doesn't make headlines. They specialise in solving the hardest problems in software and firmware security - from PAC, ASLR and CFI to encrypted firmware and beyond.

This isn't one for beginners or box-checkers. It's for engineers who enjoy making machines do what they weren't supposed to - and know the difference between understanding an exploit and building a reliable one.

Role Overview

You'll join a close-knit, elite team working on advanced vulnerability research and exploit development across a range of complex targets, including mobile platforms, embedded systems, and non-trivial binaries. The role is fully remote and demands a high level of autonomy, skill, and commitment.

Core Responsibilities

  • Reverse engineering software and firmware to uncover security flaws
  • Developing and demonstrating proof-of-concept exploits
  • Analysing binary targets using tools like IDA Pro, Binary Ninja, or Ghidra
  • Engaging in fuzzing, fault injection, symbolic execution, and virtualisation techniques
  • Writing clean, efficient code in C/C++ and Python
  • Collaborating in agile, low-ego research teams

Required Experience

  • Proven expertise in vulnerability research and exploit development
  • Deep understanding of OS internals, memory models, and binary formats
  • Experience with static, dynamic, and symbolic analysis tools and techniques
  • Strong low-level programming and debugging skills
  • Eligible for security clearance in the UK, US, Australia, or New Zealand
  • Degree (or equivalent experience) in Computer Science, Engineering, Cybersecurity or related field

Desirable

  • Existing security clearance (Secret or above)
  • Knowledge of anti-reversing techniques, implants, and advanced threat emulation
  • Proficiency in multiple architectures (e.g. x86, ARM)
  • Background in penetration testing or red team work

Package & Benefits

  • Up to £135,000 base salary (or equivalent local currency)
  • Health insurance, generous pension, bonus, and 25+ days holiday
  • Fully remote - work from anywhere in your region
  • High-impact projects and exceptional peer group
  • Ongoing investment in training and personal development

No sponsorship available - candidates must have full and unrestricted right to work in their country of residence!

Please apply by clicking the link OR direct at

Circle Recruitment is acting as an Employment Agency in relation to this vacancy. Earn yourself a referral bonus if you refer somebody else who fills the role! We also offer an iPad if you refer a new client to us and we recruit for them. Follow us on Facebook - Circle Recruitment , Twitter - @Circle_Rec and LinkedIn - Circle Recruitment.

LNKD1_UKTJ

How to apply

To apply for this job you need to authorize on our website. If you don't have an account yet, please register.

Post a resume

Similar jobs

Senior Recruitment Consultant

SWS Group,
17 hours ago
Ref. No. 30736 Location: Bristol Take Your Recruitment Career to the Next Level as a Senior Recruitment Consultant Are you experienced , ambitious , and ready to make a real impact on people's lives? If you're looking for an exciting...
SWS Group

Systems Design & Verification Engineer

TieTalent,
1 day ago
About The Opportunity: Sea Viper is currently going through its next phase of life with major upgrades proposed to be rolled out over the coming years. In support of this, a key role has arisen within the Sea Viper system...
TieTalent

Facilities & Administration Manager

WR Logistics,
1 day ago
- £38K- £40K Bristol Please note this is a job share - either 2 or 3 days a week - it will suit an individual looking for 20-25 hours a week on days to suit them. Site based position. Does...
WR Logistics