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

Contract Staff Software Engineer - (Firefox) C++,Storage Encryption at Mozilla in Remote UK. Remote. Posted October 26, 2026.

- Company: Mozilla
- Location: Remote UK
- Workplace: Remote
- Posted: 2026-10-26
- Apply: https://job-boards.greenhouse.io/mozilla/jobs/8324517
- Source: https://jobmagic.ai/jobs/contract-staff-software-engineer-firefox-cstorage-encryption-mozilla-5kqcnf

## Requirements

- 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.

## Description

### **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.