Staff Operations Engineer

Remote US

About the Position

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 without losing 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 worldwide, Mozillians design, build, and distribute open-source software that enables people to enjoy the internet on their terms.

Responsibilities

Domain Architecture & Technical Direction

• Own and evolve architecture within a defined infrastructure domain
• Design and implement scalable, reliable systems spanning multiple teams or environments
• Establish and promote best practices, patterns, and standards within the domain
• Contribute to medium- and long-term technical strategy (typically 6-18 months)

Complex Problem Solving & Execution

• Lead delivery of ambiguous, high-impact infrastructure projects
• Break down elaborate system problems into implementable solutions
• Drive migrations, re-architectures, and performance/reliability improvements
• Remain hands-on with critical systems and implementations

Cross-Team Collaboration

• Work across teams (IT, SRE, Security, Service Owners) to unify solutions.
• Influence technical decisions through design reviews and collaboration
• Ensure systems integrate cleanly across infrastructures (office, DC, cloud)

Reliability, Operations & Scaling

• Improve system reliability through monitoring, alerting, and operational design
• Contribute to defining SLIs/SLOs and capacity planning within the domain
• Participate in and lead root cause analysis for complex incidents
• Decrease operational toil through automation and system improvements

Infrastructure & Networking Depth

• Design and support core infrastructure components (compute, DNS, networking, identity, etc.)
• Drive improvements in performance, scalability, and dependability
• Contribute deep expertise in at least one area (e.g., DNS, network architecture, cloud infra)

Automation & Tooling

• Build and improve automation using scripting and Infrastructure as Code
• Contribute to internal tooling and platform improvements
• Promote repeatable, standardized approaches to system management

Mentorship & Technical Guidance

• Mentor engineers and guide system design and troubleshooting
• Raise the technical quality of the team through reviews and shared practices
• Act as a go-to resource within the domain

Documentation & Operational Clarity

• Maintain clear documentation, diagrams, and runbooks for systems owned
• Ensure systems are understandable and operable by others
• Contribute to knowledge sharing across teams

Requirements

• 6+ years of experience in systems engineering or infrastructure roles
• Strong experience designing and operating production infrastructure
• Solid expertise in:
  • VMware
  • Cisco UCS
  • Application/Network Loadbalancers
• Demonstrated ability to lead complex technical work across teams

Preferred Skills

• Experience with Infrastructure as Code
• Familiarity with observability tooling and reliability practices
• Experience with containerization and modern platform tooling
• Exposure to security best practices in infrastructure design

We Offer

• Generous performance-based bonus plans for all eligible employees
• 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. - 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 forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions.

Hiring Ranges

• US Tier 1 Locations: $163,000 - $218,000 USD
• US Tier 2 Locations: $150,000 - $200,000 USD
• US Tier 3 Locations: $139,000 - $185,000 USD