MozillaHiring

Senior Software Engineer, Privacy

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

Senior role on a browser privacy team, adding anti-tracking and threat intelligence protections and improving the engine; distributed team across Europe and US East.

About the role

Anti-tracking and threat intelligence protections in a browser with a very large user base. The engineer also reshapes the underlying engine so those protections stay fast and maintainable.

At a glance

Pay
Not stated in the posting
Remote scope
Remote, France
Seniority
Senior
Skills
Rust, JavaScript, Gecko, Python, SQL
Posted
22 Oct 2026
Last checked
29 Oct 2026

What you will do

  • Build anti-tracking and threat intelligence protections into the browser to reduce tracking and phishing
  • Make architectural improvements to Gecko, the engine under the browser
  • Write C++, JavaScript and Rust that is fast, low-latency and easy to maintain
  • Work asynchronously with a team spread mostly over Europe and US East

What they look for

  • Degree in computer science, engineering or a related field, or comparable work experience
  • Four or more years of C++ and Rust, with strength in memory safety, multithreaded architecture or raw data stream handling
  • Evidence of scoping and landing complex features independently within tight release windows
  • Good communication in writing and speech, with progress and choices explained clearly

How Keywordise applies for you

  1. 1Upload your CVAdd your CV once. It takes about a minute.
  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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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
https://keywordise.com/mcp

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ChatGPT

  1. In ChatGPT, open Settings, then Connectors. On plans that need it, turn on developer mode first.
  2. Add a new connector with the connector URL and choose OAuth. Leave the client ID and secret empty.
  3. Log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
https://keywordise.com/mcp

Disconnect any time in your Keywordise settings.

Muse

  1. Open Muse (muse.ai or the app) and send it the message below.
  2. If Muse asks how to sign in, answer OAuth. Open the sign-in link it sends, log in to Keywordise and approve.
  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 a remote job, and where can I work from?

Yes. The posting lists Senior Software Engineer, Privacy as a remote role for candidates in France.

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: degree in computer science, engineering or a related field, or comparable work experience; four or more years of C++ and Rust, with strength in memory safety, multithreaded architecture or raw data stream handling; evidence of scoping and landing complex features independently within tight release windows. Skills it names include Rust, JavaScript, Gecko, Python.

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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