Software Engineer - Intern SF

Tk5cdz9f 400x400 Fitbit | San Francisco

At Fitbit, our mission is to help people lead healthier, more active lives by empowering them with data, inspiration and guidance to reach their goals.

We started our journey in 2007—as a team of two with one big idea. Since then, we’ve grown to over 1,500 employees, sold over 60mm devices, and built a health and fitness community across the globe.  In fact, the Fitbit Community has taken enough steps to walk from the Sun to Pluto!  Offering award-winning products, a top-rated mobile app and an easy-to-use online dashboard, Fitbit provides personalized experiences that help our users reach their goals. With a reenergized focus on innovative devices, interactive experiences, and enterprise health we are transforming the way consumers and businesses see health & fitness.

From your first steps as a Fitbitter, you will be at the forefront of developing new products. Our culture combines the spirit of startup with the perks of being public. We offer a competitive benefits package and amazing perks like unlimited snacks, Friday happy hours, onsite workout classes, and a strong focus on a healthy work-life balance. As part of our team, you’ll have the opportunity to grow your career, contribute your ideas to life-changing products and services, and—above all—have fun doing it.

Fitbit’s HQ campus is located in the heart of San Francisco with office locations in Boston, San Diego and around the world. 

Think you’ve found your fit? See what we’re looking for below and apply today.


  • Pursuing a BS, MS or PhD degree in Computer Science or related field
  • Strong CS fundamentals (data structures and algorithms)
  • Passion for health and technology industry

Nice to haves:
  • Side projects or open-source contributions
  • Previous industry internship experience at technology company
Server/Infrastructure/Back End Engineer:

What you’ll do:
You’ll help bring solutions to the following areas: How do we handle drastic changes in user growth and data acquisition? What happens when users use the site for social interaction as opposed to data viewing? How do we speed up the response times of our site? How do we evaluate different distributed caching architectures? How do we integrate future devices into our ecosystem?  How do we implement changes to our site?

Specializations in this discipline include (with description for each):
  • Site Reliability: You’re the pulse for the software ecosystem.  Responsible for the monitoring and improvement of our systems, you will also build automated systems to help manage our high traffic growth.
  • Security: You will help provide secure products and services to all Fitbit customers. The security team ensures our Internet Infrastructure is robust from attacks through vulnerability and configuration management tasks.
  • Java / Spring / Hibernate / etc: You will help maintain and create the backend logic that drives the product features for the Fitbit user experience across web, mobile, and third party APIs.
  • Data Analytics Infrastructure: You will work to gather and analyze product performance metrics in order to help the business make decisions aboutfuture product directions, prototype performance, etc.  

What we're looking for:
  • Experience with: Java or equivalent OOP language
  • Familiarity with frameworks: Spring, Hibernate, Struts
  • Interest in Database design: MySQL, Redis, or Cassandra

Full Stack Engineer:
What you’ll do:
At Fitbit, you will work on a unique product in the emerging field of highly-connected consumer devices that combine physical devices, web, and mobile. You’ll build highly scalable database-backed web applications with rich interactive experiences.  You'll be collaborating with product managers, designers, and fellow engineers to implement prototypes and PSDs into launch-ready, pixel-perfect valid code.

Specializations in this discipline include (with description for each):
  • HTML / JS / CSS: You’re capable of working both in the Java backend, and on the web front end.  You’re interested in product design, visual design, and interaction design, as well as scalability of the backend systems that  
  • APIs, REST: You will help facilitate the creation of meaningful user experiences by providing connectivity to data.  We aim to provide the best developer experience to internal and third-party developers.

What we're looking for:
  • Experience with: HTML,CSS and JavaScript, Java
  • Familiarity with frameworks: RequireJS, Backbone.js, Highcharts, jQuery, PhantomJS, and Node.js.
  • Passion for usability and accessibility
Mobile Engineer:

What you’ll do:  
Creating engaging yet computationally efficient interactive data visualizations that are optimized for mobile devices with touch screens. This is an area of user interfaces for which there is no established solution; we aim to set the standard. Overcoming the hurdles of distributed systems to build native mobile clients that are tolerant of transient connectivity. We aim for our mobile clients and sensor devices to function together as normally as possible even when there is no connection to the internet. Exploiting low power communication technologies to make the internet of things a reality. We have been on leading edge of consumer deployment for both wearable sensors and Bluetooth Low Energy.

What we’re looking for:
  • iOS: experience with Objective-C and Cocoa
  • Android: Java and Android, C/+++ a plus

Check out our current mobile apps for iOS and Android at:

We are an equal opportunity employer and value diversity at our company. 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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