Req #201212

Data Science Intern – Graduate Student

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Castlight Health is seeking a summer Data Science Intern – Graduate Student. This position is open to locations in San Francisco, Salt Lake City, or remote. Come join us on the Castlight mission and help change healthcare for the better!

The intern will have the opportunity to work on impactful data science problems while partnering with experienced data scientists and engineers who help and challenge them as they work on projects that matter to our customers. Data scientists at Castlight deliver innovative results that empower customers to make the best choices for their health. These results come in the form of careful analyses, machine learning models, and production ready code and are built on a large, fascinating set of healthcare and web data.


INTERNSHIP PROGRAM EXPERIENCE: Competitive compensation, Lunch & Learns with company executives, Intern-only company sponsored events, Company-wide networking opportunities, All-company Hackathons, plus so much more! While we prefer onsite internships at one of our physical office locations, we are able to adapt to remote internships if deemed necessary based on current health and safety conditions.


  •  Pursuing a graduate degree with a focus in data science or machine learning for a university program with expected graduation date of May 2023 or earlier
  •  Proficiency in python and core data science libraries such as numpy, pandas, scikit-learn, tensorflow, xgboost, etc.
  • SQL experience is a plus
  • Data Science fundamentals in any of the following: supervised or unsupervised learning, deep learning, statistical analysis, causal inference
  • Demonstrated ability to work well collaboratively as well as solve problems independently
  • Passion for learning

We are one team, on a mission, making things happen.
Castlight is on a mission to make it as easy as humanly possible to navigate healthcare and live happier, healthier, more productive lives. Our health navigation platform connects with hundreds of health vendors, benefits resources, and plan designs, giving rise to the world’s first comprehensive app for all health needs.

The Castlight culture values and celebrates different backgrounds, perspectives, and points of view. We believe our diversity helps drive creativity and innovation. We strive to make everyone feel included, valued, and engaged; enable them to do their best work; and build their careers here at Castlight. That is why diversity and inclusion are more than just words to us. Rather, they are a commitment to a culture where employees feel respected and empowered to share their ideas and deliver the best results. 


Castlight Health provides equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, pregnancy, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, Castlight Health will provide reasonable accommodations for qualified individuals with disabilities.

Castlight Health does not accept unsolicited assistance from recruitment search firms for employment opportunities. All resumes submitted by search firms to any employee at Castlight Health via email, the Internet or in any form and/or method without a signed search agreement on Castlight’s form in place ahead of time will be deemed the sole property of Castlight Health. In such cases, no fee will be paid or payable in the event the candidate is hired by Castlight as a result of the submission.