Jobs at Mozilla

1,405 open positions

Mozilla, founded in 1998, is a global nonprofit that champions an open, free and secure internet. Its flagship product, the Firefox web browser, has driven privacy‑first features and open‑source innovation for over two decades.

Mozilla hires across a broad spectrum: software engineers, product managers, UX/UI designers, data scientists, security specialists, community leads, and marketing professionals. Interviews focus on problem‑solving, collaborative mindset, and alignment with Mozilla’s mission. Candidates can expect remote‑friendly arrangements, competitive benefits, and a culture that rewards experimentation.

Using Job Transparency’s Mozilla listings gives you instant access to real salary ranges, employee sentiment scores, and tenure data. This information lets you benchmark offers, negotiate confidently, and choose roles that match your career goals.

Staff People Partner, Global Go-to-Market Partnerships

Company: Mozilla

Location: Remote

Posted Sep 22, 2022

Mozilla is looking for a Staff Human Resources Business Partner to contribute to their success by acting as a strategic business partner to executives and senior leaders. The role involves building and maintaining trust-based relationships across the People Team, with leaders, and with Mozillians.

Senior Encryption Software Engineer

Company: Mozilla

Location: Silicon Valley CA

Posted Sep 24, 2022

The job posting is for a CTO team member at Mozilla, responsible for improving Firefox and web security. The role requires experience with web and security technologies, and a passion for protecting users. Mozilla values diversity and inclusion, and offers a remote work option.

Sr. Staff Financial Modeler

Company: Mozilla

Location: Remote

Posted Sep 23, 2022

Mozilla Finance is seeking a Financial Modeling Specialist to lead their business modeling function, develop cross-functional business partnerships, and improve financial reporting. The role requires a pragmatic self-starter with strong analytical and problem-solving skills.

Staff Content Designer (UX Copywriter)

Company: Mozilla

Location: Remote

Posted Sep 22, 2022

The job posting is for a Staff Content Designer on the UX team at Mozilla, responsible for creating content requirements and deliverables for priority projects, collaborating with UX designers and user researchers, and contributing to the content design practice. The ideal candidate has 8+ years of professional UX writing/content design/content strategy experience, a portfolio that demonstrates the ability to solve user problems, and a passion for quality content and thoughtful work.

Communications & PR Manager

Company: Mozilla

Location: Remote

Posted Sep 21, 2022

Mozilla is looking for a Communications & PR manager to join their team and help spread their mission-driven message. The ideal candidate will have experience in creative storytelling, media relations, and integrated communication campaigns.

Senior Performance Software Engineer

Company: Mozilla

Location: Remote

Posted Sep 29, 2022

Mozilla is a non-profit technology company that aims to build a joyful internet. They believe in the importance of performance, user experience, and open-source development. The company is looking for a senior systems engineer to work on the Firefox Profiler and other tools.

Manager, Corporate Development

Company: Mozilla

Location: Silicon Valley CA

Posted Sep 23, 2022

Mozilla Corporation is a non-profit-backed technology company that aims to be the trusted guide through a joyful internet. They design, build, and distribute software that enables people to enjoy the internet on their terms. The company is seeking a manager for its Business and Corporate Development team, who will participate in all aspects of the deal lifecycle.

Security Engineer - Incident Response

Company: Mozilla

Location: Remote

Posted Sep 22, 2022

Mozilla is looking for an Incident Responder to monitor and mitigate attacks across Mozilla's products and services. The job requires years of practical security experience, knowledge of detecting and responding to attacks, and excellent communication and collaboration skills.

Mixed Reality Marketing Manager - VR AR 3D

Company: Mozilla

Location: Remote

Posted Sep 21, 2022

The Hubs team is hiring a lead product marketing manager to help bring new products and services related to the 3D immersive web to life. The role is on the Hubs leadership team, where the candidate will be responsible for marketing and communication planning and direction. The candidate should have a thorough knowledge of the games or immersive technology industry and be able to work cross-functionally across teams to develop the go-to-market strategy for Hubs.

Staff Software Engineer - Mozilla VPN

Company: Mozilla

Location: Remote

Posted Sep 20, 2022

Mozilla is a company that values diversity, equity, and inclusion, and is committed to building the internet as a public resource accessible to all. The company's mission is to make sure the internet stays available, safe, and welcoming to everyone, and its products aim to protect users' data and contribute to a safer internet.

Thunderbird Front-End Web Developer

Company: Mozilla

Location: Remote

Posted Sep 21, 2022

The job posting is for a front-end web development position at MZLA Technologies Corporation, a subsidiary of Mozilla Foundation. The company is looking for a multi-skilled self-starter to work on various projects, including designing and implementing new websites, improving existing ones, and collaborating with the community.

Senior Product Designer

Company: Mozilla

Location: Portland OR

Posted Sep 23, 2022

The job posting is for a Senior Product Designer position at Mozilla, a company that values diversity, equity, and inclusion. The role involves designing products and services that promote a healthy internet, and the company is seeking a team member who has experience in agile product development and UI design.

Frequently Asked Questions

What does it feel like to work at Mozilla?
Mozilla fosters a culture of openness, where teams collaborate across product, engineering, and community to build privacy‑centred tools. Employees enjoy flexible remote work, regular hackathons, and the chance to contribute directly to Firefox and other open‑source projects. The mission‑driven environment rewards experimentation, continuous learning, and a strong sense of purpose.
What types of positions are available at Mozilla?
Mozilla’s hiring spans software engineering, product management, UX/UI design, data science, security, community outreach, marketing, operations, legal, finance, and HR. Roles range from junior to senior levels and include both full‑time and contract work, often with a focus on open‑source collaboration.
How can I stand out as an applicant for Mozilla?
Showcase open‑source contributions, especially to Firefox or related projects, and demonstrate a clear commitment to privacy and web standards. Highlight problem‑solving examples, quantify impact, and align your portfolio with Mozilla’s mission. Prepare for behavioral interviews by practicing the company’s core values, and for technical interviews by coding in languages like JavaScript, Rust, Python, and mastering browser‑related problems.

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