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. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people.

The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms.

The opportunity

At Mozilla, we’re building the future of the web—one that’s fast, private, inclusive, and puts people first. As mobile becomes the primary way billions experience the internet, our mission to deliver a secure, transparent, and user-centric browser is more important than ever.

We’re looking for a Senior Android Engineer to help evolve Firefox for Android—an open-source browser with over 100 million downloads on the Google Play Store

. In this role, you’ll shape architecture, mentor engineers, and drive technical direction while contributing to a product that reflects Mozilla’s values of openness, innovation, and privacy.

If you're passionate about building high-impact software and want to help create a healthier internet for everyone, we’d love to hear from you.

What you’ll do

• Build, debug, and ship Android features and solutions that promote a healthy and inclusive internet
• Become a member of a hardworking, diverse, and geographically distributed team responsible for the Firefox mobile applications and our ecosystem of open-source Android components
• Collaborate with partners to understand, define, clarify scope, solidify requirements, and drive initiatives
• Effectively communicate the engineering development perspective and discuss sophisticated topics with technical and non-technical team members
• Define and uphold standards for quality through constructive code reviews, bug fixing, testing, and coding practices
• Work closely with specialist Gecko teams to bring browser functionality to Android
• Address problems that span all levels from the Java API layer, to JavaScript and into the C++ browser engine
• Provide solutions and feedback to Mozilla's lively and dynamic open-source community to improve our Android solutions and support Mozilla’s manifesto

What you bring

• Several years of experience building complex applications for a broad and diverse user base using Java, Kotlin, and/or C++
• Experience resolving problems, signaling risk, fostering change, and facilitating collaborative decision-making
• Passion for building excellent products, and a sense of ownership that spans from design to investigating and squashing bugs.
• Modern programming practices (code review, unit testing, automation)
• Work as part of a team in a fast-paced environment to deliver well-designed, reusable, and high-quality code on time
• Unafraid of asking questions, and proposing new insights if you think they will make a positive impact.
• Desire to work with, learn, and grow with an outstanding group of people
• Commitment to our values:
• Welcoming differences
• Being relationship-minded
• Practicing responsible participation
• Having grit

What you’ll get:

• Generous performance-based bonus plans to all eligible employees - we share in our success as one team
• Rich medical, dental, and vision coverage
• Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
• Quarterly all-company wellness days where everyone takes a pause together
• Country specific holidays plus a day off for your birthday
• One-time home office stipend
• Annual professional development budget
• Quarterly well-being stipend
• Considerable paid parental leave
• Employee referral bonus program
• Other benefits (life/AD&D, disability, EAP, etc.)varies by country