At WHOOP, we’re on a mission to unlock human performance and healthspan. WHOOP empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives. Our wearable technology monitors vital physiological metrics to offer personalized insights that enhance fitness, health, sleep, and recovery.
As a Software Engineer II on the Core team, you will build the foundational services that power the WHOOP App and develop features that empower members to optimize performance and longevity. You will play a critical role in building and scaling the foundational systems that power the WHOOP member experience for fitness, sleep, strain, recovery, and integrations. You will partner closely with other engineers, product management, design, data science, and performance science to shape and build the polished member-facing experiences for these features.
Responsibilities
Own the design, implementation, and delivery of backend services that power member-facing experiences, collaborating with cross-functional partners to deliver scalable, reliable solutions.
Contribute to technical planning by translating product requirements into actionable engineering work, identifying risks and dependencies, and delivering iteratively.
Improve system reliability, performance, and observability through testing, monitoring, and continuous refinement.
Contribute to shared engineering foundations through code reviews, documentation, and technical discussions that improve team effectiveness.
Support other engineers through collaboration, knowledge sharing, and constructive feedback.
Qualifications
Demonstrated ability to independently deliver production-quality software while collaborating effectively across engineering, product, and design.
Strong proficiency with backend development, including Java, RESTful APIs, and relational databases such as Postgres.
Experience working with cloud platforms and asynchronous systems such as Kafka or SQS.
Experience designing, testing, and maintaining reliable, scalable backend services.
Understanding of distributed systems, observability, and performance optimization.
Strong collaboration and communication skills with cross-functional partners.
Growth mindset with a desire to learn, iterate, and continuously improve.
Enthusiasm in leveraging AI tools while maintaining high standards for quality and engineering excellence.
Bonus: Experience contributing to mobile applications or shared platform services.
Learn more about our Software Org and how to be successful in your engineering career at WHOOP via our Career Framework.
This role is based in the WHOOP office located in Boston, MA. The successful candidate must be prepared to relocate if necessary to work out of the Boston, MA office.
Interested in the role, but don’t meet every qualification? We encourage you to still apply! At WHOOP, we believe there is much more to a candidate than what is written on paper, and we value character as much as experience. As we continue to build a diverse and inclusive environment, we encourage anyone who is interested in this role to apply.
WHOOP is an Equal Opportunity Employer and participates in E-verify to determine employment eligibility. 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.
Skills Required
- Ability to independently deliver production-quality software while collaborating across engineering, product, and design
- Strong backend development proficiency, including Java, RESTful APIs, and relational databases such as Postgres
- Experience with cloud platforms and asynchronous systems such as Kafka or SQS
- Experience designing, testing, and maintaining reliable, scalable backend services
- Understanding of distributed systems, observability, and performance optimization
- Strong collaboration and communication skills with cross-functional partners
- Growth mindset and willingness to learn, iterate, and continuously improve
- Enthusiasm for leveraging AI tools while maintaining high quality and engineering standards
- Experience contributing to mobile applications or shared platform services
What the Team is Saying
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WHOOP Compensation & Benefits Highlights
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Parental & Family Support — Paid parental leave is listed at 18 weeks with an additional 2‑week transition period, signaling strong support for new parents. This depth stands out relative to typical packages highlighted in the materials.
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Wellbeing & Lifestyle Benefits — Medical, dental, and vision coverage are paired with a $500 annual wellness stipend, a free WHOOP membership plus one to gift, daily meals at the Boston HQ, and access to a gym and recovery tools. These health‑aligned perks reinforce a recovery‑first total rewards philosophy.
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Equity Value & Accessibility — Roles are described as eligible for stock options alongside salary, indicating accessible ownership as part of total rewards. This equity component is consistently highlighted in company materials and third‑party summaries.
WHOOP Insights
What We Do
At WHOOP, we’re on a mission to unlock human performance. WHOOP empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives. Our wearable device and performance optimization platform has been adopted by many of the world's greatest athletes and consumers alike.
Why Work With Us
At WHOOP, we’re focused on building an inclusive and equitable team with a strong sense of belonging for everyone—increasing representation in every way as our team grows. We believe that our differences are our source of strength—so much so it’s one of our core values.
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WHOOP Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
