Mozilla

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

Remote UK

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hirly's read of this role

Role family: Engineering
Seniority: Lead / management
Country: GB
Work mode: Remote-friendly
First seen by hirly: 27 Oct 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

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.

Original posting on Mozilla's site ↗

Listed on hirly, a job board. hirly is not the employer: Mozilla is hiring for this role.

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