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Mozilla

49 jobs

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49 jobs Posted Sort

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

NewBe an early applicant RemoteUKFull-timeStaff

Contract Staff Software Engineer on Mozilla's Firefox DOM LWS team, implementing Storage Encryption Everywhere in Gecko using C++. Day-to-day work includes writing and landing browser-engine code, Web Platform Tests, code reviews, and shepherding the feature through Nightly, Beta, and Release.

Senior Account Executive

NewBe an early applicant RemoteUKSenior

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser.…

Account Executive Content Marketing

Senior Software Engineer

NewBe an early applicant RemoteNorth AmericaSenior

About this role As a Senior Software Engineer on the Ecosystem Services Team, you’ll build and own back-end systems and the integrations that keep our services running, help maintain and evolve the cloud infrastructure…

AI API Api Design Cloud DevOps +18 skills

Sr Data Analyst

NewBe an early applicant RemoteNorth AmericaSenior

The Gecko platform is the core engine of our product experience. To maintain competitiveness and user satisfaction, we must move beyond surface-level metrics to understand the deep correlations between engine…

AI Android BigQuery CAD Claude Code +6 skills

Senior Account Executive

New RemoteUKFull-timeSenior

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser.…

Account Executive Content Marketing

Senior Account Executive

New RemoteUKSenior

Why Mozilla Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser.…

Account Executive Content Marketing

Contract Senior Data Analyst (SQL,Telemetry,Browser Engine)

New RemoteUKFull-timeSenior

A contract Senior Data Analyst works on Mozilla's Gecko browser engine telemetry, building automated dashboards, auditing telemetry gaps, and sanitizing data (e.g., filtering bot traffic) to give Product and leadership high-fidelity performance insights. Core tools include SQL (BigQuery/Redash), data visualization, statistical analysis, and AI coding assistants.

AI Android BigQuery Claude Code C++ +5 skills

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

New RemoteUKFull-timeSenior

A contract Staff Software Engineer will join Mozilla's Firefox DOM LWS team to ship Storage Encryption Everywhere in Gecko, writing C++ code, browser storage logic, and Web Platform Tests while shepherding the feature through Nightly, Beta, and Release.

Senior Software Engineer, Privacy

New RemoteEuropeSenior

Why Mozilla Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser.…

AI C++ JavaScript Machine Learning Python +2 skills

Staff Site Reliability Engineer, Tools & Systems

RemoteEuropeFull-timeSenior

Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser.…

AI Automation CI/CD Cloud C++ +8 skills

72K – 96K €

Contract Staff Software Engineer (WebCompat & Bug Triage)

RemoteNorth AmericaFull-timeStaff

You will help reduce Firefox’s WebCompat bug backlog by finishing or verifying the diagnosis of the long tail of site-breakage bugs, and by writing interventions or simple fixes (often with AI assistance). You turn a…

AI CSS HTML JavaScript

Senior Software Engineer (Add-Ons)

RemoteEuropeFull-timeSenior

Senior Software Engineer working on Mozilla's Add-ons platform (AMO), building and modernizing automated moderation pipelines, Reviewer tools, DevHub, and internal developer platforms using Python/Django, React/TypeScript, MySQL, and Kubernetes.

CI/CD Cloud Django GCP Infrastructure as Code +9 skills

53K – 71K €

Senior Staff Software Engineer (Browser, New Products)

RemoteNorth AmericaFull-timeStaff

Senior Staff Software Engineer working on browser engine internals at Mozilla in Ottawa — designing and implementing experiments within browser subsystems (DOM, layout, rendering, JS runtimes), profiling performance, and prototyping capabilities for reliable programmatic interaction with web content.

Accessibility Agentic AI AI API C++ +3 skills

Staff Product Engineer, Enterprise AI

RemoteNorth AmericaFull-timeSenior

Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At Thunderbird, we build privacy-respecting communication and…

AI API Authentication CAD CI/CD +7 skills

155K – 185K CAD

Staff Software Engineer (Web Application Services)

RemoteNorth AmericaFull-timeStaff

As a Staff Software Engineer, Services, you’ll help shape the architecture and technical direction of web-based products that extend Thunderbird beyond email. The Services team is currently focused on building…

AI Analytics API C++ JavaScript +2 skills

Senior Software Engineer

RemoteNorth AmericaFull-timeSenior

Senior Software Engineer on Mozilla’s Ecosystem Services Team builds and owns back-end platforms that power Firefox and other Mozilla products, operating services end-to-end in production on GCP with Python/TypeScript/Rust, PostgreSQL, Kubernetes, and Terraform.

AI API Api Design Cloud DevOps +19 skills

116K – 183K $

Staff Software Engineer (Web Application Services)

RemoteNorth AmericaFull-timeStaff

As a Staff Software Engineer, Services, you’ll help shape the architecture and technical direction of web-based products that extend Thunderbird beyond email. The Services team is currently focused on building…

AI Analytics API C++ JavaScript +2 skills

180K – 215K $

Contract Staff Software Engineer (Performance Graphics, C++, Rust, WebGL)

RemoteNorth AmericaFull-timeStaff

You will take on the ongoing maintenance and engineering work in Firefox’s Graphics area (rendering, compositing, images, canvas, WebGL). You help keep the graphics code healthy Own day-to-day Graphics maintenance: bug…

Android C++ Linux macOS Rust +1 skills

Contract Staff Software Engineer (FireFox Layout)

RemoteNorth AmericaFull-timeStaff

You will take on the ongoing maintenance and routine engineering work in Firefox’s Layout area (CSS, page layout, APZ, text, images) Working independently at a tech-lead level, you keep the Layout code healthy Own…

AI Android ChatGPT C++ CSS +4 skills

Staff Product Engineer, Enterprise AI

RemoteNorth AmericaFull-timeSenior

Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At Thunderbird, we build privacy-respecting communication and…

AI API Authentication CI/CD Cloud +6 skills

185K – 220K $