Software Engineer II; Backend, Healthcare

At WHOOP, we’re on a mission to unlock human performance and healthspan. WHOOP empowers users to perform at a higher level through a deeper understanding of their bodies and daily lives. Our wearable device tracks key physiological metrics such as heart rate variability, resting heart rate, and sleep quality to provide personalized insights into users’ fitness, health, and recovery.

As a Software Engineer II (Backend) in the Healthcare group, you will help build and maintain exciting features that drive real health outcomes and connect members to our powerful data science algorithms through beautiful visualizations. You will help our members understand all aspects of their health: physical, mental, emotional, hormonal and guide them in ways to take action to improve it.

Healthcare works with cutting‑edge technology and research in both the medical and wellness industry, ranging from launching medical devices such as ECG, to expanding into the clinical space with Advanced Labs, to developing novel measurements and insights like WHOOP Age and Menstrual Cycle Insights.

• Contribute to engineering efforts within a cross‑functional team, collaborating with designers, product managers, other engineers, and our Digital Health team to refine and advance the WHOOP platform.
• Develop and maintain robust backend services using Java, Kafka, Postgres, and other AWS technologies, ensuring stability and performance.
• Contribute to the ideation, technical design, and implementation of new features and platforms, transforming complex requirements into reliable, scalable solutions.
• Work on scaling challenges that span multiple systems and demand high availability and reliability.
• Write clean, testable, and maintainable code, while participating in code reviews and documentation practices.

• Professional experience in backend development, with a strong foundation in object‑oriented programming, API design, and relational databases (RESTful APIs, Postgres).
• Familiarity with asynchronous processing systems (Kafka, SQS).
• Experience writing automated tests and documenting code for a variety of audiences.
• A passion for approaching large‑scale problems guided by data‑driven insights and a commitment to agile, iterative development.
• A proactive, collaborative team player, eager to take on new challenges, continuously learn, and adapt in a fast‑paced, data‑informed environment.

Learn more about our Software Org and how to be successful in your engineering career at WHOOP via the 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.

The U.S. base salary range for this full‑time position is $125,000 - $175,000. Salary ranges are determined by role, level, and location. Within each range, individual pay is based on factors such as job‑related skills, experience, performance, and relevant education or training. In addition to the base salary, the successful candidate will also receive benefits and a generous equity package. These ranges may be modified in the future to reflect evolving market conditions and organizational needs.

While most offers will typically fall toward the starting point of the range, total compensation will depend on the candidate’s specific qualifications, expertise, and alignment with the role’s requirements.