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. 

About this team and role:

The Firefox team is a community of engineers who care deeply about delivering the fastest, friendliest, most usable browser possible. We are responsible for making the things you see in the browser work securely, quickly, and well!

Our team is geographically-distributed, and working in the open is the norm. We contribute to the code driving the Firefox browser on a number of desktop platforms - Windows, Linux, and macOS. Our focus is on implementing and fixing things in Firefox as well as helping other teams make it excellent for our users.

Do you enjoy making people delighted with solutions to their problems? Do you like to collaborate with designers to implement new interfaces? Are you interested in learning how to write performant, secure code, and deliver it to hundreds of millions of people? If so, we’d love to hear from you.

What’s a Senior Software Engineer at Mozilla? 

A Senior Software Engineer is the next level from a Software Engineer. At Mozilla, this role can vary, but is typically someone who is largely self directed after work is assigned and is advanced in their domain. They help team members get information they need to be successful while also being the go-to person for peer reviews in their domain. They have a solid understanding of the product strategy and can recommend solutions to critical issues when needed, assist junior engineers in risk management and escalation, and advocate for and implement changes that affect their team. A Senior Software Engineer actively seeks opinions and ideas from their team members, including those with varied experiences and perspectives to improve more collective results. 

What you’ll do: 

• Build high quality user interfaces for Firefox with accessibility and usability in mind
• Write code and tests, build prototypes, tackle problems with no clear solution, collaborate with other designers and engineers to make the web a better place
• Learn about a wide variety of problems and solutions across a large, mature codebase
• Work with cross functional teams, building relationships and fostering collaboration to reach shared goals
• Help to level-up the skills of your fellow engineers through code reviews, giving talks, and/or writing documentation
• Promote and maintain high standards of code-quality, focusing on performance, testing, security, usability, accessibility and maintainability
• Work with driven, committed team members to bring the open web to people around the world
• Contribute to improving engineering practices and procedures

What you’ll bring: 

• 4+ years experience as a software engineer
• You have a background in shipping high quality software
• 3+ years working experience with JavaScript, HTML, and CSS
• Interest in and ability to work with a distributed team (requires good asynchronous written communication skills as well as good verbal communication skills)
• Happy to provide and receive constructive feedback
• Will contribute by asking questions and proposing new ideas
• A love of working with others collaboratively
• 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)

About Mozilla 

Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.

Commitment to diversity, equity, inclusion, and belonging

Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission.  We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities, and expressions.

We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation.

We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws.  Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose.

Group: D

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Req ID: R3135