Senior Security Engineer - Incident Response
Lancaster, Los Angeles County, California, 93586, USA
Listed on 2026-01-12
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IT/Tech
Cybersecurity
Senior Security Engineer - Incident Response
Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we're shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies.
Our work focuses on diverse areas including AI, social media, security and more. And we're doing this while never losing our focus on our core mission to make the internet better for people.
The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren't beholden to any shareholders only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms.
About This Team And RoleMozilla is looking for an Incident Responder to monitor and mitigate attacks across Mozilla's products and services. In this position, you will be a part of a flexible team responsible for handling security incidents. As such, you'll need to have years of practical security experience and knowledge of the state of the art for detecting and responding to attacks. You'll be someone Mozillians across the company depend on and trust to respond quickly and effectively in a crunch, with the outstanding communication and collaboration skills needed to work in partnership with diverse stakeholders.
Most importantly, you will become a critical member of the team responsible for ensuring the integrity of Mozilla's products and for keeping Mozilla's users safe, within a company dedicated to building a more secure internet.
- 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 Big Query, Splunk, etc.). Splunk proficiency is preferred.
- Expertise with endpoint detection and investigation. Hands-on experience with leading EDR tools and demonstrated ability to leverage endpoint telemetry to find root cause.
- Expertise with security orchestration and automation (SOAR) platforms such as Tines or Splunk SOAR.
- Superb communication and leadership capacity; ability to partner effectively with diverse company stakeholders.
- Real-world experience in software development and/or engineering operations for consumer products and services; B.S. in a technology-focused field is helpful.
- Practical experience working with cloud technologies (eg. Google Cloud Platform, Amazon Web Services, Heroku, Microsoft Azure, etc.).
- Ownership and Accountability
- Autonomy
- High Level of Integrity
- Clear Communication
- Creative Problem Solver
- Passionate about Security
- Generous performance-based bonus plans to all eligible employees
- Rich medical, dental, and vision coverage
- Generous retirement contributions with 100% immediate vesting
- 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)
About Mozilla
Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day.
Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.
Commitment to Diversity, Equity, Inclusion, and Belonging
Mozilla understands that valuing diverse creative practices and…
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