Staff Operations Engineer

Mozilla; Oregon; Hybrid; USD 163,000 - 218,000; Full time

Benefits offered by this job

Generous bonus plans

Comprehensive health coverage (medical

Home office stipend

Professional development budget

Parental leave

Job summary

Mozilla seeks a Staff Operations Engineer to lead the design, reliability, and evolution of hybrid-cloud and workplace infrastructure. This senior role spans teams, drives complex initiatives, sets technical direction, and ensures scalable, secure systems.

You will shape architecture and impact across multiple domains while remaining hands-on with critical systems. You’ll own domain architecture, mentor engineers, and push for automation, observability, and best practices.

Qualifications

• 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 load balancers, Linux/Unix, DNS/TCP/IP/routing/firewalls and data center environments.
• Demonstrated ability to lead complex technical work across teams.

Responsibilities

• Own and evolve architecture within a defined infrastructure domain and drive technical direction.
• Lead delivery of high-impact infrastructure projects, migrations, and performance/reliability improvements.
• Collaborate across IT, SRE, Security, and Service Owners to unify solutions across office, DC, and cloud.
• Improve system reliability through monitoring, alerting, SLIs/SLOs, and automation.

Skills

Systems engineering

Infrastructure design

Linux/Unix

Networking fundamentals

Leadership

Tools

VMware

Cisco UCS

Load balancers

Linux/Unix

Job description

Why Mozilla?

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.

About this team and role:

A Staff Operations Engineer leads the design, reliability, and evolution of hybrid-cloud and workplace infrastructure. This senior role spans teams, drives complex initiatives, sets technical direction, and ensures systems are scalable, secure, and efficient. This role combines technical execution with leadership, shaping architecture both directly and collaboratively.

What you’ll do:

Domain Architecture & Technical Direction

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

Complex Problem Solving & Execution

• Lead delivery of ambiguous, high-impact infrastructure projectsBreak down elaborate system problems into implementable solutionsDrive migrations, re-architectures, and performance/reliability improvementsRemain 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 collaborationEnsure systems integrate cleanly across infrastructures (office, DC, cloud)

Reliability, Operations & Scaling

• Improve system reliability through monitoring, alerting, and operational designContribute to defining SLIs/SLOs and capacity planning within the domainParticipate in and lead root cause analysis for complex incidentsDecrease 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 dependabilityContribute 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 CodeContribute to internal tooling and platform improvementsPromote repeatable, standardized approaches to system management

Mentorship & Technical Guidance

• Mentor engineers and guide system design and troubleshootingRaise the technical quality of the team through reviews and shared practicesAct as a go-to resource within the domain

Documentation & Operational Clarity

• Maintain clear documentation, diagrams, and runbooks for systems ownedEnsure systems are understandable and operable by othersContribute to knowledge sharing across teams

What you’ll bring:

• 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
  • Linux/Unix Operating Systems
  • Networking fundamentals (DNS, TCP/IP, routing, firewalls)
  • Data center environments
• Demonstrated ability to lead complex technical work across teams

Preferred Skills

• Experience with Infrastructure as Code
• Puppet/Ansible/etcPython
• Familiarity with observability tooling and reliability practicesExperience with containerization and modern platform toolingExposure to security best practices in infrastructure design

Key Competencies

Multi-Team Impact

Demonstrate influence and contributions that extend beyond your immediate team. Consistently participate in initiatives that affect infrastructure within your broader domain, and provide support or guidance across multiple teams when necessary.

Technical Ownership (Scoped)

Take responsibility for systems or architecture within a clearly defined area of the infrastructure. Oversee the health, evolution, and quality of these systems, ensuring alignment with organizational standards.

Execution Amid Ambiguity

delivers on loosely defined problems with high impact

Influence Without Authority

drives alignment through credibility and alliance

Balance of Depth + Breadth

deep in one area, competent across adjacent systems

Hands-On Leadership

actively contributes to implementation, not just design

Bonus Skills/Competencies

• GitHub Enterprise Administration
• User Access Management
• GH Org / Repo Management
• SSO / SCIM Integration
• Policy Enforcement

What you’ll get:

• Generous performance-based bonus plans for 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)

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. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose.

Group: C#LI-REMOTEReq ID: R3138Hiring 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