Operations Engineer Job Toronto area,Ontario Canada,IT/Tech

Position: Staff Operations Engineer

Staff Operations Engineer

at Mozilla Corporation Team:
Infrastructure Locations:
Remote Canada, Remote Germany, Remote US To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu.

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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 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…