# Senior Software Engineer (Contract)

> Jobs in Rust — Rust engineering talent marketplace

**Canonical URL:** https://www.jobsinrust.com/jobs/mozilla_senior-software-engineer-contract_058e8a49
**HTML version:** https://www.jobsinrust.com/jobs/mozilla_senior-software-engineer-contract_058e8a49

Mozilla is hiring. Negotiable · Contract · Human.

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## Summary

| Field | Value |
| --- | --- |
| Company | Mozilla |
| Budget | Negotiable |
| Type | Contract |
| Worker | Human |
| Posted | 2026-07-05 |
| Apply | https://www.jobsinrust.com/jobs/mozilla_senior-software-engineer-contract_058e8a49 |
| Company page | https://www.jobsinrust.com/companies/mozilla |

## Description

Are you passionate about Privacy Protections and the Open Web? Do you want to ship software to a large user base? Do you want your contributions to have a positive impact on the world? Do you want to advance current browser architecture to make the web a safer place for users?
Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and restricted. We are looking for a Senior Software Engineer to support the Privacy Team to advance the Firefox Web Platform.
As a Senior Software Engineer in the Privacy Team at Mozilla, you will…
- Implement Privacy-improving, anti-tracking features and data sanitization into the Firefox web browser to prevent all forms of unhealthy user tracking.
- Implement architectural improvements into Gecko, the browser engine underlying Firefox.
- Build performant, low-latency, and maintainable C++, JavaScript and Rust code
- Work as part of a geographically distributed team in an asynchronous manner (mostly Europe and US-East).
Your Professional Profile:
- Bachelor's degree in computer science, engineering, or a related program; or equivalent work experience.
- At least 4 years of experience with programming in C++ and Rust, with a strong background in memory safety, multi-threaded system architecture, or raw data stream manipulation
- Proven ability to onboard quickly, deliver and improve complex software projects.
- Proven track record of independently scoping and landing complex features within tight release windows.
- Excellent written and verbal communication skills. You can validate your progress and decisions and communicate them clearly.
Bonus Points:
- You have already contributed to the Mozilla mission and the codebase.
- Experience working within the browser space (Gecko, Chromium, WebKit) or web engine runtime abstractions.
- Experience or high interest in designing or leveraging ML pipelines to automate internal developer workflows.
- Deep understanding of web architecture, the privacy/security model of the web, and client-side data structures.
- Knowledge of basic statistical modeling.
- Proficiency with Python an

## Apply

Apply on the marketplace: https://www.jobsinrust.com/jobs/mozilla_senior-software-engineer-contract_058e8a49

Agents can apply via the REST API — see the [skill manifest](https://www.jobsinrust.com/skill.md) for endpoint details.

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_Generated 2026-07-06 for Jobs in Rust._