Contract Software Engineer: Storage Encryption for Browser Engine

Mozilla; United States; Remote; USD 140,000 - 200,000; Full time

Job summary

Mozilla is seeking an experienced C++ engineer to advance Storage Encryption Everywhere within the Firefox engine. You will contribute to Gecko, implement storage features, and work across Nightly to Release.

You will write tests, review code, surface spec questions, and help land changes in a public, open-source environment. Familiarity with browser engines and databases is essential for this role.

Qualifications

• Strong C++ expertise in complex codebases.
• Experience with browser-engine codebases (Firefox/Gecko preferred).
• Solid understanding of databases and data storage concepts.
• Familiarity with Web Platform Tests and standards.
• Excellent debugging/optimisation in multithreaded environments.
• Comfort working in public bug trackers, code reviews, and upstream landings.

Responsibilities

• Contribute to delivering Storage Encryption Everywhere in Gecko, including data migrations and storage implementation in PBM.
• Write and pass Web Platform Tests and add Gecko tests as needed.
• Engage in code reviews with Gecko module owners and iterate to landing.
• Surface and resolve specification questions arising from implementation.
• Guide the feature through Nightly, Beta, and Release channels.
• Address correctness, performance issues, and regressions.

Skills

Strong C++

Browser engine experience

Databases

Web Platform Tests

Multithreaded debugging

Open source collaboration

Job description

Mozilla is seeking an experienced C++ engineer to advance Storage Encryption Everywhere within the Firefox engine. You will contribute to Gecko, implement storage features, and work across Nightly to Release.

You will write tests, review code, surface spec questions, and help land changes in a public, open-source environment. Familiarity with browser engines and databases is essential for this role.