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

Mozilla · UK wide

Contract Staff Software Engineer - (Firefox) C++,Storage Encryption at Mozilla, across the UK. This is a contract role.

Salary
Competitive
Location
UK wide
Contract
Contract
Posted
12 hours ago
Closes
20 Nov 2026
Sector
Software Developer

Reference 8247430

About the role

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.

Reference: 8247430 · Posted 12 hours ago · Closes 20 Nov 2026 · Listed via Mozilla

Know someone who'd be great for this? Get a shareable card

Apply for this job

This role is listed via Mozilla. Applications are handled on the employer's site.

Apply on employer site

Opens the employer's website in a new tab.

Safe applying: a genuine employer will never ask you to pay for a DBS check, training or equipment, or move you onto WhatsApp before you are hired. If this listing does, report it and do not pay anything.

Report this job
Salary Competitive
Apply now