MozillaHiring

Staff Site Reliability Engineer, Tools & Systems

  • Remote, Canada
  • Senior
  • Posted 7 days ago
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In one line

Broad engineering role building and running the internal tools, CI/CD and cloud infrastructure that Firefox engineers rely on, in an open-source setting.

About the role

The work spans developer tooling, workflow automation and production systems, with room to set standards and patterns that other teams adopt. Much of it happens in the open.

At a glance

Pay
Not stated in the posting
Remote scope
Remote, Canada
Seniority
Senior
Skills
Python, JavaScript, TypeScript, Rust, Terraform, CI/CD, Containers
Posted
22 Oct 2026
Last checked
29 Oct 2026

What you will do

  • Design, build, deploy and operate software and systems that support Firefox engineering
  • Own hard problems end to end across code, cloud and operations, improving reliability and cost
  • Work with engineering, cloud and IT teams on issues that cross team lines
  • Use telemetry and metrics to investigate problems and guide decisions
  • Contribute to architecture and technical strategy across teams

What they look for

  • Solid software engineering skills plus hands-on experience running production systems
  • Programming in Python or JavaScript/TypeScript, with C++ or Rust a plus
  • Building and operating cloud systems with infrastructure as code such as Terraform
  • Familiarity with CI/CD, containers and orchestration

How Keywordise applies for you

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ClaudeConnectorChatGPTConnectorMuseby Meta

Claude

  1. In Claude, open Settings, then Connectors, and choose Add custom connector.
  2. Name it Keywordise and paste the connector URL.
  3. Click Connect, log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
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ChatGPT

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Connector URL
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Muse

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  3. Send the prompt. Muse asks before it sends anything.
Message for Muse
Add a custom connector called Keywordise. It is a remote MCP server at https://keywordise.com/mcp and uses OAuth. Give me the sign-in link.

Muse is available in the US only for now.

Prompt
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How to connect

Questions about this job

Is this job fully remote, and from where?

Yes, it is listed as remote, aimed at candidates in Canada.

What does this job pay?

The posting does not state a salary, so there is no figure to quote.

What experience is needed?

It is a senior role. The posting asks for: solid software engineering skills plus hands-on experience running production systems; programming in Python or JavaScript/TypeScript, with C++ or Rust a plus; building and operating cloud systems with infrastructure as code such as Terraform. Skills it names include Python, JavaScript, TypeScript, Rust.

How do I apply with Keywordise AI?

Select Apply with Keywordise AI, sign up and upload your CV. Keywordise writes a CV and a cover letter for this job from your real experience and applies for you. The 7-day free trial needs no card.

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