Staff Operations Engineer

Mozilla; New York (NY); On-site; USD 140,000 - 200,000; Full time

Benefits offered by this job

Health premiums covered

Mental health support

Wellbeing stipend

Paid time off

Job summary

Mozilla is seeking a Staff Operations Engineer in New York 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 systems are scalable, secure, and efficient.

You will own architecture within a defined domain, design scalable systems across multiple environments, and mentor engineers while advancing the technical standards and practices that keep Mozillians

Qualifications

• 6+ years of experience in systems engineering or infrastructure roles.
• Strong experience designing and operating production infrastructure.
• Exposure to security best practices in infrastructure design.
• Experience with containerization and modern platform tooling.
• Familiarity with observability tooling and reliability practices.
• Python
• Puppet/Ansible/etc
• Experience with Infrastructure as Code

Responsibilities

• Lead design, reliability, and evolution of hybrid-cloud and workplace infrastructure.
• 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 (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 IT, SRE, Security, Service Owners to unify solutions.

Skills

Networking fundamentals

Linux/Unix

VMware

Cisco UCS

Data center environments

Load balancers

Python

Containerization

Observability tooling

Infrastructure as Code

Security practices

6+ years experience

Tools

Puppet/Ansible

Job description

• 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
• 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

Benefits

• Health and wellness: Mozilla covers medical, dental and vision plan premiums at 100% for U.S. and Canadian employees. Our offerings give you the options you need to manage your health — and your family’s — the way you want.
• Mental health: Mental health is as important as our physical health. That’s why Mozilla’s health benefits include therapy and coaching sessions to make sure our people have access to the care they need.
• Time away: With all of life’s demands, time away from work to disconnect and recharge is essential. In addition to country-specific holidays (12 in the U.S. and Canada), vacation and sick time start accruing right away (specifics vary by country). Everyone also takes a pause together on quarterly all-company wellness days, plus you get to celebrate the most personal holiday of all: your birthday.
• Parental leave: While Mozilla’s parental leave policies vary globally, our U.S. and Canadian-based employees can look forward to 26 weeks of paid leave for childbearing parents and 12 weeks of paid leave for non-childbearing parents.
• Financial: Mozilla is a private company, so our compensation isn’t tied to stock options or equity plans. Instead, we offer generous, performance-based bonus plans to all regular employees to underscore that we share in our success as one team. As for retirement savings for US and Canadian employees, Mozilla contributes a percentage of your eligible base salary each year to the 401(k) Plan/RRSP (regardless of whether you contribute or not), with 100% vesting.
• Learning and development: We’re big believers in learning by doing, and we also want to invest in your education and development beyond your role. Every employee is eligible for an annual professional development budget. Mozillians can put it toward technical or management training, certifications, conferences and more.
• Help when you need it: Life is full of surprises; that’s why it’s important to be prepared. Mozilla provides Life/AD&D and Short and Long Term Disability insurance (offerings may vary by locale) to ensure that you and your family will have a safety net in place should you ever need it.
• Plus a bit more: A few other benefits include a quarterly wellbeing stipend (to use on those things just for you), an employee referral bonus, internet reimbursement if you’re remote, and a budget for office essentials to make working remotely ergonomically comfortable.

• Networking fundamentals (DNS, TCP/IP, routing, firewalls)
• Solid expertise in:
• Linux/Unix Operating Systems
• VMware
• Cisco UCS
• Data center environments
• Application/Network Loadbalancers
• 6+ years of experience in systems engineering or infrastructure roles
• Strong experience designing and operating production infrastructure
• Demonstrated ability to lead complex technical work across teams
• Exposure to security best practices in infrastructure design
• Experience with containerization and modern platform tooling
• Familiarity with observability tooling and reliability practices
• Python
• Puppet/Ansible/etc
• Experience with Infrastructure as Code