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Mozilla

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Mozilla

Staff Site Reliability Engineer, Tools & Systems

Mozilla Corporation operates as a technology enterprise backed by a non-profit foundation, focusing on products like the Firefox web browser and tackling areas such as artificial…

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Role Snapshot

Hiring Now
Work arrangement
Remote
Where applicants may be
Applicants in Canada only
Salary
Not specified
Apply by
Not specified
Employment type
Full-time
Experience
Not specified
Added to Jobsiz2h agoEmployer posted Oct 22, 2026
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Applications0
Apply BeforeNo deadline

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About This Role

Mozilla Corporation operates as a technology enterprise backed by a non-profit foundation, focusing on products like the Firefox web browser and tackling areas such as artificial intelligence, security, and social media. The organization is seeking a Staff Site Reliability Engineer, Tools & Systems to join its team on a remote basis. This position suits an experienced software engineer interested in internal engineering systems, developer tooling, workflow automation, and the infrastructure…

Job Description

Mozilla Corporation operates as a technology enterprise backed by a non-profit foundation, focusing on products like the Firefox web browser and tackling areas such as artificial intelligence, security, and social media. The organization is seeking a Staff Site Reliability Engineer, Tools & Systems to join its team on a remote basis. This position suits an experienced software engineer interested in internal engineering systems, developer tooling, workflow automation, and the infrastructure that powers them.

In this capacity, the engineer will help internal teams succeed by solving operational problems, setting standards, and designing automation that simplifies system management. The work involves collaborating across multiple domains, contributing to open-source software, and taking ownership of complex technical challenges.

Qualified candidates should bring strong programming capabilities, hands-on experience running production systems in cloud environments, and familiarity with infrastructure as code. Mozilla provides a comprehensive compensation package that includes medical coverage, retirement plans, wellness stipends, and professional development budgets.

Responsibilities

  • Design, build, deploy, and maintain software and systems that support Firefox engineering
  • Contribute to continuous integration and delivery pipelines, workflow automation, developer tooling, and AI-assisted development utilities
  • Manage complex technical challenges across software, cloud, and operational layers to enhance performance, reliability, observability, and cost efficiency
  • Collaborate with Firefox engineering, Cloud Engineering, and IT teams to resolve cross-functional problems
  • Analyze telemetry data and metrics to investigate technical issues and guide engineering choices
  • Shape architecture and technical strategy by identifying reusable solutions for multiple teams
  • Contribute back to the broader open-source ecosystem

Requirements

  • Demonstrated software engineering abilities with substantial hands-on experience deploying and operating production systems
  • Proficiency in programming languages such as Python, JavaScript, or TypeScript
  • Hands-on background building and running production systems in cloud environments using infrastructure as code like Terraform
  • Practical knowledge in areas including CI/CD, containers and orchestration, networking, databases, observability, or developer tooling
  • Experience using metrics and telemetry to investigate technical challenges and make decisions
  • Familiarity with modern AI-assisted development tools, including their capabilities and limitations

Qualifications

  • Working knowledge of C++ or Rust

Core Skills

Benefits

  • Performance-based bonus plans
  • Medical, dental, and vision coverage
  • Retirement contributions with immediate vesting
  • Quarterly all-company wellness days and a day off for birthdays
  • Country-specific holidays
  • One-time home office stipend
  • Annual professional development budget
  • Quarterly well-being stipend
  • Paid parental leave
  • Employee referral bonus program
  • Life, AD&D, disability, and EAP benefits

Frequently Asked Questions

Answers are based only on the employer’s listing; where it doesn’t say, neither do we.

Is this position remote?

Yes, the source posting designates this role as remote.

What is the employment type?

The source posting specifies full-time employment.

What salary does this role offer?

The general salary is not stated, though the posting lists hiring ranges for specific regions such as Germany from €81,000 to €108,000 EUR.

What technical skills are required?

Candidates must have strong software engineering skills, experience operating production systems in cloud environments, proficiency in languages like Python or JavaScript/TypeScript, and familiarity with infrastructure as code.

Sample Interview Questions

AI-generated questions tailored to this specific role — a preview of the full practice set.

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Posted by Mozilla

Source: Mozilla

View the original listing ↗

Posted by employer: Oct 22, 2026

Added to Jobsiz: Oct 22, 2026

The description was written by Jobsiz from the employer’s listing. Always check the original listing before applying.

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