Role overview

WHOOP creates wearable technology that monitors physiological metrics to help members optimize performance, fitness, sleep, and recovery. As a Senior Software Engineer on the Core team, you will design and build the foundational backend systems that power the WHOOP App and member experience, working across a range of features that drive member engagement and outcomes.

Key responsibilities

Lead the design and implementation of foundational backend capabilities that enhance scalability, reliability, and developer productivity across the platform.
Drive technical planning for complex initiatives by defining scope, sequencing work, identifying risks, and communicating technical tradeoffs to stakeholders.
Deliver high-impact platform capabilities while making informed decisions that balance technical quality, business priorities, and engineering rigor.
Establish and evolve backend engineering standards through architecture discussions, code reviews, documentation, and technical leadership.
Mentor engineers and help grow the team’s technical capabilities through coaching, feedback, and knowledge sharing.
Partner closely with product management, design, data science, and performance science teams to shape member-facing experiences.

Requirements

Demonstrated ability to lead complex technical initiatives, influence engineering direction, and mentor other engineers.
Deep expertise in backend development, including Java, API design, distributed systems, and relational databases such as Postgres.
Experience designing scalable, reliable, and observable systems using cloud-native and event-driven architectures such as Kafka or SQS.
Strong engineering judgment with the ability to balance technical quality, business priorities, and long-term maintainability.
Experience writing well-tested, maintainable software and establishing engineering best practices through technical leadership.
Excellent collaboration and communication skills with both technical and non-technical partners.
Enthusiasm for leveraging AI tools while maintaining high standards for quality and engineering excellence.

What makes this role worth considering

This position is based in Boston, MA and offers the opportunity to work on foundational systems that directly impact how members engage with health and performance data. You will collaborate with cross-functional teams including product, design, data science, and performance science, giving you broad influence over the direction of the platform and the chance to mentor growing engineering talent.