Senior Software Engineer

Weightwatchers
San Francisco, CA

WeightWatchers is a global digital health company.


We are the #1 doctor-recommended – and most clinically studied – behavioral weight health program in the world. For sixty years, WeightWatchers has helped millions build healthy habits and live happier, healthier lives.

As the science of weight health rapidly evolves, so does WeightWatchers. Today we are developing new clinical pathways for medication access, creating behavioral programs for chronic health conditions, integrating third-party services, and enhancing product personalization.

WeightWatchers has embraced technology, with our mobile app now the primary tool for most members. While we continue to perfect our digital product, we are also designing new in-person experiences. With these diverse member touchpoints, our potential for impact has never been greater.

What you will do

We are seeking a senior-level Engineers to join the WW Mobile team. You will write code, build A/B tests, solve problems, and deliver features that improve the lives of millions of our members. You will also learn from our talented team of software engineers and share your knowledge to make us better. Working for WW means you get to write code that makes a huge impact on people's lives.

We love developing the WW mobile app with Kotlin using Mavericks architecture and ReactNative. We use great native libraries like Retrofit, Coroutines, Dagger, and Jetpack libraries such as Compose, WorkManager, and Architecture Components to help us make our code easy to maintain, modular, and testable. We also use RN frameworks like Expo. We leverage Fastlane and Continuous Integration to help us ensure that our unit tests pass and that we deliver a high-quality app every two weeks.

Who you are




  • 7+ years professional engineering experience



  • Several published applications in the Play Store



  • Familiarity with developing apps in Kotlin and ReactNative



  • Good JavaScript and Typescript proficiency with Cross-platform development understanding



  • Experience writing Clean Code



  • Excellent problem-solving and debugging skills



  • Experience writing unit and/or UI tests using Junit, Mockito, etc.



  • Technical leadership experience, you are the go-to person for other members of the team





  • Familiarity with GraphQL, Relay, Pothos, fastify a plus


Base salary may vary depending on, but not limited to: skills, experience, and location. This role is also eligible for a comprehensive benefits package and annual bonus program.

US Pay Range

$150,000 - $170,000 USD

At WeightWatchers, our mission is to build a worldwide community connected by healthy habits. If that resonates with you, then we would love to talk. WeightWatchers values developing community within our employee population as well. We encourage our employees to come into the office 1-2 days/week.

It is our priority to cultivate a diverse and inclusive workplace. We are committed as individuals, as an organization, and as fellow humans, to advocate for and support our employees, our members, and our communities. We are proud to be an equal opportunity employer and we do not discriminate on the basis of sex, race, color, creed, national origin, marital status, age, religion, sexual orientation, gender identity, gender expression, veteran status, or disability.

By agreeing to participate in our process, you agree that any information we collect is subject to our .


Maryland

Under Maryland law, an employer may not require or demand, as a condition of employment, prospective employment, or continued employment, that an individual submit to or take a polygraph examination or similar test. An employer who violates this law is guilty of a misdemeanor and subject to a fine not exceeding $100.

Massachusetts

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.


WeightWatchers complies with all applicable Rhode Island Workers' Compensation laws (Chapters 29-38 of the R.I. General Laws). Eligible employees are covered by worker's compensation insurance for work-related injuries or illness.

Posted 2026-02-16

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