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Contract Staff Software Engineer - Firefox - C++,Storage Encryption

Mozilla · Remote UK · United Kingdom

Remote Posted Open until 31 Oct 2026
  • Remote Remote UK — job location

The job, in the employer's words

The role

You will help the Firefox DOM LWS team to implement tasks for Storage Encryption everywhere, helping to drive the in-progress project through to completion .

Responsibilities

  • Contributing to delivering Storage Encryption Everywhere in Gecko, which may include tasks such as migrating data between schemas, implementing data storage in PBM and integration testing.
  • Write and pass Web Platform Tests, and add Gecko tests as needed.
  • Work through code review with the relevant Gecko module owners and iterate to landing.
  • Surface and help resolve any specification questions the implementation raises.
  • Shepherd the feature through Nightly, Beta, and Release. Fix correctness, performance issues and regressions.

Definition of done

Ship Storage Encryption Everywhere to release channel. Fix triaged and prioritized issues.

Required qualifications

  • Strong C++.
  • Substantial experience in a browser-engine codebase, ideally Firefox/Gecko.
  • Substantial experience in databases.
  • Familiarity with web standards and Web Platform Tests.
  • Strong debugging and optimization in a multithreaded codebase.
  • Comfort working in the open: public bugs, code review, and upstream landing.

Preferred

  • Prior contributions to Gecko or another major browser engine.
  • Familiarity with the relevant standards body and specification process.

Requirements mentioned

  • Strong C++.
  • Substantial experience in a browser-engine codebase, ideally Firefox/Gecko.
  • Substantial experience in databases.
  • Familiarity with web standards and Web Platform Tests.
  • Strong debugging and optimization in a multithreaded codebase.
  • Comfort working in the open: public bugs, code review, and upstream landing.

No Mondays shows this listing as the employer published it. Check the details on the employer's site before you apply.

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Remote share — Software Engineer jobs in United Kingdom

72% are remote

70 of 97 jobs we have listed

How long they stay open — Software Engineer jobs in United Kingdom

45 days median time open before the listing ended

Based on 12 ended listings

Advertised pay — Software Engineer jobs in United Kingdom

GBP 97k median advertised pay / year

Middle half: GBP 67k – GBP 307k

From 28 listings that state pay