MozillaHiring

Staff Site Reliability Engineer, Tools & Systems

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

Staff-level role building and running the tooling and systems behind a major browser's engineering work, with cloud platforms and open-source contributions.

About the role

The team gives engineering groups shared platforms and core services, and this role helps them succeed on that model by setting standards and automating the hard parts. Expect varied problems that need focused, independent ownership.

At a glance

Pay
Not stated in the posting
Remote scope
Remote, Belgium
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, deploy and operate software and systems used by browser engineering teams.
  • Improve developer tooling, CI/CD, automation and AI-assisted development tools.
  • Solve cross-cutting technical problems end to end, raising reliability, performance, observability and cost efficiency.

What they look for

  • Strong software engineering skills and meaningful experience operating production systems.
  • Programming in Python or JavaScript/TypeScript; C++ or Rust is useful.
  • Cloud deployment experience with infrastructure as code such as Terraform.
  • Familiarity with CI/CD, containers and orchestration across several areas.

Nice to have

  • Interest in open-source work and building in the open.

How Keywordise applies for you

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  2. 2Tailored to this jobKeywordise writes a CV and a cover letter for this job from your real experience.
  3. 3The form fills itselfName, email, experience and screening questions, field by field.
  4. 4Application sentYou get a receipt and follow it in your dashboard.

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Claude

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  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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  2. Add a new connector with the connector URL and choose OAuth. Leave the client ID and secret empty.
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Connector URL
https://keywordise.com/mcp

Disconnect any time in your Keywordise settings.

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
Apply to Keywordise job 3l443quh3t
How to connect

Questions about this job

Can I do this job remotely, and from which countries?

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

What does this job pay?

No pay range is stated in the posting.

What experience is needed?

It is a senior role. The posting asks for: strong software engineering skills and meaningful experience operating production systems; programming in Python or JavaScript/TypeScript; C++ or Rust is useful; cloud deployment experience 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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