Senior Software Engineer (Backend, SaMD)



Software Engineering
Boston, MA, USA
Posted on Tuesday, June 4, 2024
At WHOOP, we're on a mission to unlock human performance. 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 Senior Software Engineer (Backend, SaMD) on the Health team, you will help build and maintain exciting features across our three core pillars at WHOOP (Strain, Sleep & Recovery) 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, and hormonal, and guide them in ways to understand their physiology and empower them to take an active role in their health journey. The Health team works with cutting-edge technology and research in the health and wellness industry to develop life changing features, like WHOOP’s brand new pregnancy feature, and develops novel measurements, such as WHOOP's stress monitoring feature.


  • Work in a cross-functional team that collaborates closely with the data science, product, and software engineering teams at WHOOP
  • Contribute to backend development using the following technologies: Java, Kafka, Postgres, and other AWS offerings
  • Contribute to new feature ideation, planning, and development
  • Contribute to the development of features regulated as software as medical device (SaMD)
  • Translate feature requirements into actionable tasks, identify risks, and ship often to mitigate those risks
  • Draft robust documentation to support regulatory compliance
  • Work on scaling challenges that span multiple systems and demand high availability and stability
  • Support and up-level engineers around you through direct and indirect mentorship


  • Experience with backend development in APIs and with interacting with relational databases (RESTful APIs, Postgres)
  • Experience working with asynchronous workers (Kafka, SQS)
  • Experience writing tests and documenting code for a variety of audiences
  • An innate passion for approaching large-scale problems through small, data-informed, and experiment-driven iterations
  • You are experienced in mentoring engineers in best practices in software development
  • You are a team player who thrives in a fast-paced and data-driven environment and seeks continuous learning and direct feedback
  • Preferred, but not required: Experience in development approaches that are compliant with a Quality Management System, IEC 62304 - Software lifecycle processes, ISO 14971 - Medical Devices Application of Risk Management
Find out more about us: "WHOOP Software Principles"
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.