Mozilla is hiring Software Engineering Interns into our technical teams throughout the world. Our headquarters are based in the Bay Area, but we also have opportunities at our offices in Toronto and San Francisco!

We are engineers, designers, makers, and problem solvers. We work in the fishbowl known as the open source community, with a clear focus on making the Web better. Working with us, you’ll help build interesting new features and improvements in Firefox. To be part of the team, we ask that you be technically-curious, a capable and always-interested-in-learning-more programmer, and excited to be moving the Mozilla mission forward.

Mozilla isn’t just a great place to work, it’s an experience you’ll carry with you throughout your career. As part of our internship program, you’ll have the opportunity to be mentored one-on-one by a talented and experienced developer, to impact the projects you’ll collaborate on, and to never be bored. Ever. From the passionate people you’ll learn from, to the chances you’ll have to make the Web a better place, your time with Mozilla will be unlike any other.

Below is a small snapshot of the work we do to give you an idea about some of the big things you could do at Mozilla.

We have 10 positions open for the following roles:

Firefox Software Engineer (Toronto, ON, Canada & San Francisco, CA)

Activity Stream Team (newtab, CFR, Onboarding Tour, Snippets, Pocket integration)

The Activity Stream team’s mission is to provide Firefox users with a provably awesome platform to explore their browsing experiences and to facilitate new discoveries on the web.  As an engineering intern, you will build Firefox features that allow users to explore the web in new ways.

Test Pilot Engineer (Mountain View, CA)

Test Pilot is a small team of passionate people exploring new ideas and features in the Firefox ecosystem. We build experimental feature and service prototypes and common tooling to help other teams do the same. As an engineering intern, you will collaborate with engineers and designers on new or existing experiments in our portfolio.

Desktop Firefox Front-End Engineering Intern (Toronto, ON, Canada & Mountain View, CA)

The Desktop Firefox Front-End team handles the engineering for much of what makes the browser a great application for users, and more than just a rendering engine.  You’ll have the opportunity to work on many facets of Firefox, from creating a refined UI that balances power and simplicity to components that store user data and integrate with online services. You’ll help maintain and modernize a large code base, and also develop cutting-edge browser features. Expand your programming skills across multiple domains — Firefox uses JavaScript and CSS for its UI, C/C++ in the core, and platform-specific Win32/Cocoa/GTK too. Be part of a small team with a large reach, where individuals can have a major impact.

Developer Tools Accessibility Engineer (Toronto, ON, Canada)

The accessibility team works to ensure that Firefox and the web are accessible to people with disabilities. The Firefox Accessibility Developer Tools help in identifying and resolving website accessibility problems. As an intern with our team, you will work on exciting new features in the Firefox Accessibility Developer Tools which will help website developers to build a more inclusive web. You will also help to improve the accessibility of the Firefox Developer Tools, ensuring that developers with disabilities can also participate equally in building the web.

Data Tools Engineer (Toronto, ON, Canada)

Firefox browsers in use around the world generate terabytes of telemetry data daily. This data can provide lots of valuable information about how users are interacting with Firefox and how it is performing for them. Turning this firehose of data into useful information is not easy, however. The Firefox Data Tools team builds and maintains the tools needed to help engineers, product managers, release managers, and data scientists process and make sense of this data, for the benefit of our users and in support of Mozilla’s mission of supporting the health of the internet.

UX Engineering Intern (Toronto, ON, Canada)

The Firefox UX team would like you to work with our Design System group to bring the latest design to all our products. As a UX Engineering Intern, you will collaborate with designers and engineers to update and grow the guidelines; develop and document reusable components that will make people’s lives easier and more beautiful; and use those components in Firefox, our other tools, and web properties to add consistency and balance.

Basic Qualifications:

  • Currently enrolled in a Bachelor’s or Master’s degree program in Computer Science, Computer Engineering, or related technical discipline with a focus on software development, with graduation dates starting December 2019 and onward
  • Or, a recent graduate from a Coding Academy (within last year)

Preferred Qualifications:

  • Fluency in Javascript, HTML, and CSS, Understanding of Web Technologies
  • Coding in Python, Unix/Linux, Graphic Design, UX Design, and Web Design tools and languages
  • Ability to interpret large amounts of data, multi-task, and produce results independently and collaboratively in a team
  • Strong communications and social skills, Strong analytical and critical thinking skills, Excellent organization, time management, and interpersonal skills.

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.

We are an equal opportunity employer and value diversity. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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