Senior Scala Engineer

About Weight Watchers:
We are uniquely positioned to lead the way in the exciting Health Tech industry. With several million people logging in and using Weight Watchers’ Apps and systems we are modernizing and rebuilding most of our core experiences and embracing modern engineering practices and techniques. Our strategy is to compete in an increasingly digital weight loss market. Our innovative technology fundamentally improves the way people manage their weight, health and wellness. We are agile service oriented, data-driven, cloud enabled and efficient. We’ve built Simple UIs on Angular, micro services in Play/Scala & Node, moved our core data to Mongo and Cassandra and enhanced our mobile apps. As reliance on health and wellness awareness increases, come make an impact on a team that is leading the way!

About the Team

We are Core Services. We write the APIs and services that power our new digital products. We consider these products essential to the future success of Weight Watchers. We are building an event-driven, reactive microservice architecture.

We are Agile. We believe in total ownership of the products we build. We empower our engineers to find the right solutions. We value people and encourage innovation.

Right now we build our applications using Scala, Play and Akka. We mostly use Cassandra as our data store. We deploy and run our applications in Docker containers. We have started using AWS (mainly Kinesis and Lambda) and will probably be using more in the future.

About You

You are a passionate, accomplished software developer. You enjoy building robust, scalable web applications. You are good at collaborating closely with others both within and outside your team. You are constantly learning new things and sharing your experiences with others. You get things done.

You excel at Scala. You have a deep understanding of OO and Functional design patterns. You understand good system design and architecture, particularly microservice and event-driven architectures. You enjoy mentoring others and helping them develop their talents.

Above all, you are excited by the opportunity to work with and learn about new technologies.

Key Requirements

  • 2+ years Scala experience and 6+ years of relevant software development experience
  • Deep understanding of how the web works
  • Experience designing and building highly scalable RESTful APIs
  • Experience with Microservices architecture
  • Experience leading teams of developers is preferred
  • Experience working with Play, Akka, Cassandra or Kinesis is an advantage

You should apply if you...

  • Want to help millions of people live healthier lives
  • Are interested in Scala, Functional Programming and/or Reactive Programming
  • Enjoy collaborating with other passionate, talented individuals
  • Want to work in a relaxed, friendly space (table tennis, foosball, fresh fruit)
  • Want an employer who cares about your well-being and work/life balance

Not the right job for you? Perhaps you know someone who is a better fit, if so please send them this link. Thanks!

Offer of employment is contingent upon the satisfactory results of reference and background checks.  

Weight Watchers is an equal opportunity employer. Weight Watchers does 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.

Meet Some of Weight Watchers's Employees


Associate Product Manager

Anastasia works on ways to make sure new Weight Watchers members are set up for success from the moment they join the program by tracking and implementing processes that support healthy behavior.


Senior Manager, Social Media Marketing

Reema leads strategy and execution for the Social Media Team across creative, brand advocacy, and experiential activations. This includes overseeing content that is published across Facebook, Instagram, Pinterest, YouTube, and Twitter, as well as managing the company’s brand ambassador program.

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