Senior Research Data Scientist

Fitbit, US - San Francisco

Stay motivated and improve your health by tracking your activity, exercise, food, weight and sleep

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. Today, that idea has become a movement. Fitbit is now a publicly-traded company creating award-winning products and services that are available across the globe. We’re transforming the way the world sees health & fitness. In fact, the Fitbit Community has taken enough steps to walk from the Sun to Pluto. Our culture combines the spirit of startup with the perks of being public—offering a competitive benefits package and amazing perks like free lunches, Friday happy hours, on-site fitness classes and more. 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 made up of three modern buildings located at the heart of SOMA in San Francisco. Monday-Friday you can feast your eyes on amazing views of the skyline, then feast yourself on some of the city’s best food trucks, lunch spots and coffee shops. When you’ve had your fill, lace up and make your way to the Ferry Building for the perfect post-work run or walk along the water (with the Bay Bridge as your backdrop)! 

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

Fitbit Research is world-class team of hacker-scientist-types who dream up, prototype, and deliver shipping products. We investigate a big set of problems from hardware development to embedded signal processing algorithms to data mining.  Experimentation is critical.  We work in a dynamic and collaborative environment where the goal is to learn things quickly, iterate fast, and make awesome products.

Your Role:

This role is for a research scientist role in the area of machine learning/data science.  The candidate is expected to lead and contribute in a number of areas; specifically, we have a need for machine learning/data analysis of data being collected in a number of mental health projects, plus projected needs in disease detection analysis. The candidate may also be asked to provide support and leadership on existing software features such as sleep tracking, resting heart rate, etc. The candidate may also be responsible for technical leadership within a research initiative area (e.g., sensing) where leadership includes development of a roadmap, prioritization of tasks, and communication with external stakeholders. The candidate is also expected to work effectively with product management and engineering teams to achieve successful roll-out of features and software, and to contribute to data science initiatives at a company wide level. The candidate should be proficient in statistics, and have a strong data analytics programming background (e.g., Python or R). They should also have some relevant background in analysis of physiological/biomedical data or signals

This Senior Research Data Scientist will be responsible for:

  • Running data queries
  • Developing models to fit physiological data from Fitbit devices to observed clinical state
  • Working with external research partners on data sharing
  • Working with product and UX teams to define product specifications and design
  • Working with business teams on pilot trials.


Must Have

  • An advanced degree in a quantitative discipline
  • 4+ year industry experience demonstrating performance in the area of machine learning  and/or data analysis
  • Expert-level background in at least one programming language (C, Python, Scala, R etc.)
  • Experience in design of experiments to collect physiological data
  • Motivated, independent, efficient and able to handle several projects
  • Friendly, articulate, and interested in working in a fun, small team environment


  • Prior experience working with product managers, designers, and software developers
  • Experience in regulated medical software products


Fitbit is proud to be an equal opportunity employer. We recruit, hire, train, promote, pay, and administer all personnel actions without regard to race, color, ancestry, national origin, citizenship, religion, age, sex (including pregnancy, childbirth, and medical conditions related to pregnancy, childbirth, or breastfeeding), sex stereotyping (including assumptions about a person’s appearance or behavior, gender roles, gender expression, or gender identity), sexual orientation, gender, gender identity, gender expression, marital status, medical condition, mental or physical disability, military or veteran status, genetic information or other statuses protected by law. We interpret these protected statuses broadly to include both the actual status and any perceptions and assumptions made regarding these statuses.

San Francisco applicants:  Pursuant to the San Francisco Fair Chance Ordinance Fitbit will consider for employment qualified applicants with arrest and conviction records.


About Fitbit

We're a passionate team dedicated to health and fitness who are building products that help transform people's lives. While health can be serious business, we feel it doesn't have to be. We believe you're more likely to reach your goals if you're encouraged to have fun, smile, and feel empowered along the way.

Want to learn more about Fitbit? Visit Fitbit's website.