Senior Software Engineer (Backend, Ecosystem)
TLDR
Play a critical role in building and scaling the foundational systems that power the WHOOP connected member experience, collaborating closely with various teams to deliver reliable, high-impact back.
● Lead the design and implementation of ecosystem backend capabilities (for example, new data integrations, authorization flows, partner integrations, WHOOP developer platform features, improved scalable and resilient architectures)
● Drive technical planning for initiatives, including scoping and sequencing work, identifying dependencies and risks, and communicating tradeoffs and timelines to stakeholders
● Deliver high-quality, member-facing features, collaborating with cross-functional partners to ensure requirements are met, and outcomes are measurable
● Maintain and improve system performance, scalability, and reliability across APIs and infrastructure using Java, Kafka, Postgres, and AWS technologies
● Establish and evolve shared engineering standards through code reviews, documentation, and architectural discussions, influencing patterns used across backend development
● Mentor and support other engineers through pairing, feedback, and knowledge sharing, helping grow individual capability and the overall health of the codebase
● Significant experience building and operating large-scale backend systems in a production environment
● Genuine excitement when it comes to working with partners and building relationships with developers
● Deep expertise in API design and development, including RESTful services and relational databases such as Postgres
● Experience working with event-driven or asynchronous systems such as Kafka or SQS
● Proven ability to design systems for scalability, reliability, and performance
● Experience writing well-tested, maintainable code with clear documentation
● Strong collaboration and communication skills, with experience working cross-functionally
● Growth mindset with a desire to learn, iterate, and improve in a complex and evolving environment
● Bonus: Experience working full-stack (for example, Swift or Kotlin), or building shared services used across multiple product areas
Whoop builds a performance optimization platform that helps individuals understand their bodies and health through advanced wearable technology. Targeted at fitness enthusiasts and health-conscious individuals, this startup stands out by focusing on personalized metrics and insights that drive improved performance and longevity.