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

    ~$118,913 - $220,838Market Estimate
    Remote Canada; Remote Germany; Remote UK
    Contract
    Senior (7+ yrs)
    Engineering & Development
    Posted on October 20, 2026

    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.

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    Company:  Mozilla

    Develops open-source internet technologies and advocates for online privacy and standards.
    Remote-First Company
    501-1000 employees
    Software & IT Services
    HQ: United States