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Mozilla

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Mozilla

Staff Software Engineer, Tools & Systems

Mozilla Corporation seeks a remote Staff Software Engineer, Tools & Systems to support Firefox engineering through internal systems, developer tooling, workflow automation, and infrastructure. Mozilla is…

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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
Listing Views1
Applications0
Apply BeforeNo deadline

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About This Role

Mozilla Corporation seeks a remote Staff Software Engineer, Tools & Systems to support Firefox engineering through internal systems, developer tooling, workflow automation, and infrastructure. Mozilla is a non-profit-backed technology company reaching over 225 million monthly users, creating products such as the privacy-focused web browser Firefox, and focusing on artificial intelligence, social media, and security. Wholly owned by the Mozilla Foundation, the organization operates without shareholders to fulfill its mission of…

Job Description

Mozilla Corporation seeks a remote Staff Software Engineer, Tools & Systems to support Firefox engineering through internal systems, developer tooling, workflow automation, and infrastructure. Mozilla is a non-profit-backed technology company reaching over 225 million monthly users, creating products such as the privacy-focused web browser Firefox, and focusing on artificial intelligence, social media, and security. Wholly owned by the Mozilla Foundation, the organization operates without shareholders to fulfill its mission of keeping the internet open and accessible to all.

This broad engineering role involves building and operating production systems, establishing operational standards, solving complex technical challenges, and contributing to open-source software. The ideal candidate possesses robust software development capabilities and hands-on operational experience, combined with systems thinking and the ability to work independently across varied technical domains.

Responsibilities

  • Design, build, deploy, and operate software and systems supporting Firefox engineering
  • Contribute to continuous integration and deployment pipelines, workflow automation, developer tooling, and AI-assisted development utilities
  • Own complex technical problems end-to-end to improve reliability, cost efficiency, performance, and observability
  • Collaborate across organizational boundaries with Firefox engineering, Cloud Engineering, and IT teams
  • Analyze telemetry, metrics, and data to investigate issues and guide engineering choices
  • Contribute to technical strategy and architecture by identifying reusable solutions for multiple teams
  • Engage with and contribute back to the broader open-source software ecosystem

Requirements

  • Strong programming skills in Python or JavaScript/TypeScript
  • Substantial hands-on background in deploying and operating production systems within cloud environments
  • Experience utilizing infrastructure as code tools such as Terraform
  • Practical experience across areas such as containers, orchestration, networking, databases, CI/CD, observability, or developer tooling
  • Demonstrated ability to use metrics, telemetry, and data to investigate technical problems and drive decisions
  • Familiarity with modern AI-assisted development tools, including their operational capabilities and limitations

Qualifications

  • Useful background in C++ or Rust programming languages

Core Skills

Benefits

  • Performance-based bonus plans for eligible employees
  • Comprehensive medical, dental, and vision health coverage
  • Retirement contributions featuring 100% immediate vesting
  • Quarterly all-company wellness days
  • Paid holidays plus a birthday day off
  • One-time home office stipend
  • Annual professional development budget
  • Quarterly well-being stipend
  • Considerable paid parental leave
  • Employee referral bonus program
  • Life, AD&D, disability, and employee assistance program 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, this role is listed as remote.

What employment type is this role?

The posting specifies full-time employment.

What are the core technical requirements?

Candidates need strong programming skills in Python or JavaScript/TypeScript, substantial hands-on experience deploying and operating production cloud systems, familiarity with infrastructure as code like Terraform, and experience using telemetry and data to resolve technical problems.

What salary does Mozilla offer for this role?

The posting lists hiring ranges for specific regions, such as €76.000 to €101.000 EUR for remote Spain, but does not provide a universal salary.

Sample Interview Questions

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Posted by Mozilla

Source: Mozilla

View the original listing ↗

Posted by employer: Oct 22, 2026

Added to Jobsiz: Nov 8, 2026

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

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