Staff Operations Engineer

Mozilla

5d•$139,000 - $218,000•Remote

About The Position

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.

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

Nice To Haves

Experience with Infrastructure as Code
Puppet/Ansible/etc
Python
Familiarity with observability tooling and reliability practices
Experience with containerization and modern platform tooling
Exposure to security best practices in infrastructure design
GitHub Enterprise Administration
User Access Management
GH Org / Repo Management
SSO / SCIM Integration
Policy Enforcement

Responsibilities

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)
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
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)
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
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)
Build and improve automation using scripting and Infrastructure as Code
Contribute to internal tooling and platform improvements
Promote repeatable, standardized approaches to system management
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
Maintain clear documentation, diagrams, and runbooks for systems owned
Ensure systems are understandable and operable by others
Contribute to knowledge sharing across teams