Principal Security Researcher

Salary: £90,000 - 90,000 per year

Requirements

• We require at least 3 years of experience as a security researcher with proven success finding vulnerabilities.
• We require strong scripting skills in Python and/or GoLang to identify security vulnerabilities at scale.
• We require CRT or OSCP certification.
• We require experience with published CVEs.
• We prefer CCSAS or CCT certification.
• We prefer candidates who have spoken at conferences, demonstrating passion and deep security interest.
• We can only consider applicants based in the UK.
• We are unable to offer sponsorship.

Responsibilities

• We identify weaknesses across client infrastructure, applications, and the wider estate.
• We research, discover, and validate security vulnerabilities within our clients environments.
• We explain identified vulnerabilities to clients clearly, including the impact and, where possible, the patching approach.
• We work within our Labs function as part of a security-focused team.
• We use scripting and security research techniques to uncover vulnerabilities at scale.

Technologies

• Golang
• Python
• Security

More

We are a niche, VC-backed security SaaS company specialising in attack surface management and automated red teaming. Our platform gives organisations real-time visibility into their attack surface and potential exploitable vulnerabilities. We have won multiple awards as an emerging security SaaS product company, have completed Series A funding, and raised $29 million across three funding rounds. We offer a competitive package of £80,000 to £90,000, pension, shares, private health insurance via AXA, remote working, quarterly UK meetups, 28 days of holiday including bank holidays, and yearly salary reviews. This is a UK-only remote role with no sponsorship available.

last updated 20 week of 2026