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Senior Security Engineer, Bug Bounty

Security EngineerSecurity EngineerFull TimeRemoteSeniorTeam 501-1,000Since 1998H1B SponsorCompany SiteLinkedIn

Location

United Kingdom

Posted

3 days ago

Salary

£66K - £87K / year

Seniority

Senior

Job Description

Senior Security Engineer, Bug Bounty

Mozilla

• Own and scale Mozilla’s web bug bounty program, including strategy, prioritization, KPIs, and continuous improvement • Act as the primary interface with external researchers and platforms (e.g., HackerOne), fostering a high-quality and trusted research community • Lead triage and technical validation of incoming reports across multiple intake channels (HackerOne, Bugzilla, email) • Drive end-to-end vulnerability remediation, partnering with engineering teams to ensure timely, effective fixes • Identify root causes and systemic issues, and influence long-term improvements in secure development practices • Collaborate with the Security Incident Response Team (SIRT) on active incidents and post-incident reviews • Perform targeted code reviews (primarily JavaScript and Python) during investigations and high-risk changes • Develop or leverage tooling to improve triage efficiency, signal quality, and program insights

Job Requirements

  • 3+ years of demonstrated ability in a security engineering role.
  • Experience operating bug bounty programs, including enhancements, automation and scaling, and/or bug hunting
  • Practical experience working with modern cloud technologies (eg. Amazon Web Services, Google Cloud Platform, Heroku, Microsoft Azure, etc.)
  • Experience analyzing code and systems to move from vulnerability → root cause → prevention
  • Real-world experience in software development and/or engineering operations
  • Ability to develop your own tools as needed in a variety of programming languages (eg. Python, Go, Rust, Javascript, etc.) is a plus, but not required.
  • Strong communication, collaboration, and problem-solving skills, with the ability to influence and guide cross-functional teams.
  • Formal credentials are great, but real-world experience, curiosity, passion and a growth mindset matter more.

Benefits

  • Generous performance-based bonus plans to all eligible employees - we share in our success as one team
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
  • Quarterly all-company wellness days where everyone takes a pause together
  • Country specific holidays plus a day off for your birthday
  • One-time home office stipend
  • Annual professional development budget
  • Quarterly well-being stipend
  • Considerable paid parental leave
  • Employee referral bonus program
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)

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