Jobs at Mozilla

Positions 1,418

Mozilla is the nonprofit behind the Firefox browser, championing an open, secure internet. Its mission centers on user privacy, free web standards, and community‑driven development. The company’s products power millions of devices worldwide and contribute to open‑source projects like Rust and WebAssembly.

Mozilla hires for a broad spectrum of roles, including software engineering, product management, UX design, data science, sales and marketing, and community engagement. Candidates often work in cross‑functional teams, use agile practices, and have opportunities to contribute to open‑source code or public policy initiatives. Remote work is common, with flexible hours and a focus on work‑life balance.

By reviewing Mozilla listings on Job Transparency, you gain access to real salary ranges, employee sentiment scores, and market comparisons. This data lets you benchmark offers, negotiate confidently, and choose roles that match your career goals and compensation expectations. Transparency also reveals remote‑work policies and benefits, helping you evaluate the full package before applying.

Data SRE Manager

Company: Mozilla

Location: Remote

Posted Feb 10, 2023

The text describes a job opening for a Data SRE Manager at Mozilla, responsible for managing the data infrastructure and working closely with data organizations. The role requires creative problem-solving skills and an innovative demeanor. The job offers a competitive salary and benefits. Mozilla is an equal opportunity employer committed to diversity, equity, inclusion, and belonging.

Staff User Experience Designer

Company: Mozilla

Location: Remote

Posted Feb 07, 2023

Mozilla is looking for an experienced user experience designer to help improve the MDN website and build new premium products. The team is highly distributed and values diversity, equity, and inclusion.

Staff Software Engineer - Networking

Company: Mozilla

Location: Remote

Posted Feb 12, 2023

The Mozilla Corporation's Gecko networking team is seeking skilled developers to work on improving web experiences for millions of Firefox users. The role involves working on the core of the browser, network protocols, and features like HTTP, QUIC, caching, and DNS. The team values diversity, equity, inclusion, and belonging.

Sr. Director of Engineering - Advertising

Company: Mozilla

Location: Remote

Posted Feb 03, 2023

Mozilla is hiring for a senior role in their Ads product team, focusing on privacy-respecting and values-aligned display advertising. The role involves leading the team's formation, defining and evolving the advertising tech stack, and driving growth to $100M+ in the next 12-18 months.

Director of Product Communications

Company: Mozilla

Location: Remote

Posted Feb 14, 2023

Mozilla is looking for a Director of Product Communications to lead external communications efforts. The role involves sharing Mozilla's unique stories and products with the world, developing strategies, and leading execution on initiatives to differentiate Mozilla from 'Big Tech'.

Sr. Software Engineer – Layout (CSS and API Support)

Company: Mozilla

Location: Remote

Posted Feb 11, 2023

The job posting is for a Senior Software Engineer position at Mozilla Corporation, requiring experience in programming languages such as C++, Python, Rust, and JavaScript, as well as experience working with the Gecko browser engine and various web technologies. The job involves improving the Firefox browser's layout architecture, writing code, and collaborating with the Web Platform team.

Thunderbird Senior Software Engineer

Company: Mozilla

Location: Remote

Posted Feb 13, 2023

The Company MZLA Technologies Corporation is seeking a Senior JavaScript Engineer with some C++ knowledge to work on their full stack Calendar implementation and other areas of Thunderbird. The role offers remote work, a comprehensive code base, and the opportunity to contribute to an open source project. The team values diversity and is looking for someone with excellent communication skills and a passion for protecting users.

Staff Lifecycle Marketing Manager

Company: Mozilla

Location: Remote

Posted Feb 03, 2023

Mozilla is looking for a Sr. Lifecycle Marketing Manager to drive execution of email, mobile message and owned surface engagement programs with Product and Editorial teams. The role requires strategic leadership, customer journey learning agenda, audience segmentation, personalized marketing message improvements, lifecycle and retention experimentation, email deployment process, and data-driven optimization.

Salesforce Administrator

Company: Mozilla

Location: Remote

Posted Feb 14, 2023

The Mozilla Foundation is seeking a skilled Salesforce Administrator to join their digital platforms team. The ideal candidate will have proven Salesforce administration experience, interpersonal skills, the ability to work well in a team, and a passion for the organization's mission. The role involves making careful configuration changes, creating fields and objects, updating user records, and staying up-to-date with Salesforce changes. The successful candidate will also drive the migration of data from legacy spreadsheets into Salesforce and support staff with data needs.

Email Operations Lead

Company: Mozilla

Location: Remote

Posted Feb 14, 2023

Pocket is seeking an experienced Email Operations Lead to manage day-to-day operations and administration of Braze, including testing and launching dynamic messaging campaigns, managing the Braze database, and collaborating with cross-functional teams to create compelling messaging programs. The role involves working closely with partners across Analytics, Editorial, Engineering, Marketing, and Product to ensure effective communication with Pocket users.

Senior Software Engineer - Mozilla VPN

Company: Mozilla

Location: Remote

Posted Feb 14, 2023

Mozilla is a mission-driven company that values open source technologies and diversity. They offer a remote position on the Privacy and Security product team, building software to protect users' data and contribute to a safer internet. The role involves building and maintaining Mozilla VPN, collaborating with teams, and writing unit tests. They prefer candidates with a Bachelor's degree in computer science, 5+ years of software engineering experience in C++, and prior experience with Windows operating systems.

Senior Gameplay Engineer, Hubs Team

Company: Mozilla

Location: Remote

Posted Feb 02, 2023

The job posting is for a Senior Gameplay Engineer position at Mozilla, where the candidate will work on building the core client, engine, and art tools for the Hubs product suite. The job requires professional game programming experience, domain knowledge of relevant topics, and a passion for building delightful experiences.

Frequently Asked Questions

What is it like to work at Mozilla?
Mozilla fosters a collaborative culture where developers, designers, and policy experts co‑design products that protect user privacy. Employees enjoy open‑source contributions, flexible remote schedules, and regular hackathons. The mission‑driven environment emphasizes impact, so teams are rewarded for measurable improvements to the web and community outreach.
What types of positions are available at Mozilla?
Mozilla offers roles across software engineering, front‑end and back‑end development, data science, UX/UI design, product management, security, sales, marketing, community management, and public policy. Technical roles often require proficiency in languages such as Rust, C++, JavaScript, and Python, while non‑technical roles value project management, communications, and community engagement skills.
How can I stand out as an applicant?
Show a clear alignment with Mozilla’s values by highlighting open‑source contributions, privacy‑focused projects, or community outreach. Quantify past impact—e.g., code reviews, feature adoption, or user growth metrics—and tailor your resume to the specific role’s requirements. Prepare for Mozilla’s interview process by mastering technical challenges, practicing behavioral questions around collaboration and mission focus, and demonstrating curiosity about emerging web technologies.

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