Full-time

Senior Security Engineer - Incident Response

Mozilla

Posted

Feb 19, 2026

Location

Remote (UK)

Type

Full-time

Compensation

£65000 - £87000

Mission

What you will drive

Core responsibilities:

  • Identify and respond to security incidents on a global scale
  • Act as an incident commander to drive incidents through the entire response lifecycle
  • Design and maintain a portfolio of security alerts, automated actions, playbooks and escalation workflows
  • Conduct threat hunting activities, anticipate future threats, and maintain forward-thinking strategies

Impact

The difference you'll make

This role ensures the integrity of Mozilla's products and keeps Mozilla's users safe within a company dedicated to building a more secure internet, helping to reclaim an internet built for people, not companies.

Profile

What makes you a great fit

Required skills and experience:

  • 5+ years of demonstrated ability managing security incidents at a global scale and/or experience working in Security Operations Centers (SOC), Product Security Incident Response Teams (PSIRT), and Computer Security Incident Response Teams (CSIRT)
  • Expertise with security information and event management (SIEM) systems (eg. ELK, Google BigQuery, Splunk, etc.)
  • Expertise with endpoint detection and investigation and leading EDR tools
  • Expertise with security orchestration and automation (SOAR) platforms such as Tines or Splunk SOAR

Benefits

What's in it for you

Benefits include:

  • Generous performance-based bonus plans
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting
  • Quarterly all-company wellness days
  • 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.)