MozillaHiring

Senior Software Engineer, Privacy

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

Senior engineering role on a browser privacy team, writing C++, Rust and JavaScript to block tracking and phishing; remote across Europe and US East.

About the role

Privacy protections and anti-tracking work inside a widely used open source browser, with changes landing in the engine itself. Success means shipping features that reach a large user base without slowing the browser down.

At a glance

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

What you will do

  • Add anti-tracking and threat intelligence protections to the browser to cut down tracking and phishing
  • Make architectural changes to Gecko, the engine the browser runs on
  • Write fast, low-latency C++, JavaScript and Rust that stays easy to maintain
  • Work async with a distributed team spread mostly across Europe and US East

What they look for

  • Degree in computer science, engineering or similar, or the same knowledge from work experience
  • Four or more years of C++ and Rust, with depth in memory safety, multithreaded architecture or raw data streams
  • A record of scoping and landing complex features on your own inside tight release windows
  • Clear writing and speaking, so progress and decisions can be explained and checked

Nice to have

  • Prior work on browser engines such as Gecko, Chromium or WebKit, or on web engine runtime abstractions

Benefits

  • Performance-based bonus, retirement contributions vested right away, quarterly company wellness days, home office stipend and a yearly devel

How Keywordise applies for you

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ClaudeConnectorChatGPTConnectorMuseby Meta

Claude

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Connector URL
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ChatGPT

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Connector URL
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Muse

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Message for Muse
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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. The posting lists Senior Software Engineer, Privacy as a remote role for candidates in Finland.

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: degree in computer science, engineering or similar, or the same knowledge from work experience; four or more years of C++ and Rust, with depth in memory safety, multithreaded architecture or raw data streams; a record of scoping and landing complex features on your own inside 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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