Mozilla is hiring C++ Software Engineering Interns onto our technical teams throughout the world. Our headquarters are based in the Bay Area, but we also have opportunities at our offices in Berlin! 

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, improve Mozilla products, and explore new product directions. To be part of the team, we ask that you be user centered, technically-curious, and excited to be moving the Mozilla mission forward.

As a part of our Mozilla Internship Program, you will:

  • Impact challenging projects influenced by our family of Mozilla products in and outside of the Firefox web browser (accessibility, voice design, developer tools, mobile, and mixed reality), Rust, Pocket, and more

  • Be mentored by a fellow teammate and someone who shares the same values

  • Do real work on real projects and make contributions that will impact hundreds of millions of users

  • Participate in social events with your fellow interns (amusement parks, ice cream and boba socials, board game nights, escape rooms, and painting parties)

  • Meet with Mozilla leaders including our CEO, Executive Chairwoman, CPO, Chief R&D Officer, CMO, and Executive Foundation Director

  • Present your work to Mozilla leaders and fellow team members


Perks include:

  • Market competitive pay

  • Catered lunches, snacks, and drinks

  • Housing service or housing stipend provided 

  • Flights and ground transportation to and from internship

  • Work visas sponsored

  • Attendance at our bi-annual All Hands Meeting


Application and Interview Process

  • Recruiting begins in September, and we hire on a rolling basis through March. While there is no set application deadline, we do have a limited number of positions open each year, so please apply early!

  • Locations include Mountain View, San Francisco, Toronto, Berlin, and Paris. Please refer to our internship listings for specific locations offered by position.

  • Process starts with a resume review followed by a HackerRank challenge (technical) or document submission (non-technical).

  • Upon passing, you will partake in two technical and behavioral interviews with team members (coding and situational questions are fair game) followed by a hiring manager interview and ultimately, an offer decision. 


We have a position open for the following role: 


Software Engineering Intern, Graphics (Berlin, Germany)
The Graphics team is responsible for rendering the content and UI of the browser, decoding images, canvas and WebGL, painting and compositing everything you see on the screen. We are also the team responsible for WebRender. Our focus is writing fast, lightweight, and maintainable code to make Firefox great for users. We are looking for C++ or Rust interns who can also look at a disassembly and reason about its performance. The right person will take initiative to solve problems and will help us find ways to make web browsers fast using GPUs.



Basic Qualifications: 

  • Must be currently enrolled in a Bachelor’s or Master’s degree program in Computer Science, Computer Engineering, or a related technical discipline

  • Must be graduating in December 2020 and onward

  • Or a recent graduate from a Coding Academy (within the last year) 

  • C / C++


Preferred Qualifications: 

  • Understanding of Web Technologies - Javascript, HTML, and CSS

  • Android Applications in Kotlin or Java 

  • UX Design

  • Graphic Design

  • Web design tools and languages

  • Reasonable fluency in and passion for technology 

  • Strong communication and social skills

  • Strong analytical and critical thinking skills 

  • Empathy for users, passion for using data to make product decisions, experience with user research techniques

  • Excellent organization, time management, and interpersonal skills

  • Ability to effectively articulate technical challenges, propose solutions, and incorporate feedback 

  • Passion for working in the open and engaging with Mozilla’s global community 

  • Ability to work independently or as part of a larger group


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. Join us and become part of our mission to promote openness, innovation and opportunity online. 


Mozilla is committed to Equal Employment Opportunity throughout our recruiting and hiring process and is dedicated to increasing diversity in our workplace.

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