WHOOP

Senior Software Engineer (Backend, Core)

WHOOP$130K — $155K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Ability to lead complex technical projects and mentor engineers.
  • Expertise in backend development with Java, API design, and relational databases.
  • Experience with cloud-native and event-driven architectures like Kafka or SQS.
  • Strong judgement in balancing technical quality and business needs.
  • Proficiency in writing maintainable code and establishing best practices.
  • Excellent communication with technical and non-technical stakeholders.
  • Interest in utilizing AI tools while ensuring engineering quality.
  • Bonus: Experience in building shared platform capabilities across mobile and backend.

Responsibilities

  • Lead design and implementation of backend capabilities for scalability and reliability.
  • Drive technical planning for complex projects, identifying risks and trade-offs.
  • Deliver high-impact platform capabilities while balancing quality and business priorities.
  • Evolve backend engineering standards through discussion, review, and leadership.
  • Mentor engineers to enhance team technical proficiency through coaching.

Benefits

  • Opportunity to work in a dynamic and innovative workplace.
  • Collaborative environment with cross-functional teams.
  • Focus on personal and professional growth via mentorship.
  • Diversity and inclusion are prioritized within the company culture.
  • Relocation support is provided for eligible candidates.
Full Job Description
As a Senior Software Engineer on the Core team, you will build the foundations 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
  • Lead the design and implementation of foundational backend capabilities that improve scalability, reliability, and developer productivity.
  • Drive technical planning for complex initiatives by defining scope, sequencing work, identifying risks, and communicating technical tradeoffs.
  • Deliver high-impact platform capabilities while balancing technical quality, business priorities, and data-informed engineering decisions.
  • 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.


Qualifications
  • 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 experience balancing 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 technical and non-technical partners.
  • Enthusiasm in leveraging AI tools while maintaining high standards for quality and engineering excellence.
  • Bonus: Experience building shared platform capabilities or contributing across mobile and backend

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.

About WHOOP

WHOOP is a wearable technology company that specializes in fitness tracking. The company was founded in 2012 and is based in Boston, Massachusetts. WHOOP's flagship product is a wristband that tracks various metrics related to fitness and health, such as heart rate variability, sleep quality, and recovery time. The company also offers a subscription service that provides personalized insights and recommendations based on the data collected by the wristband. WHOOP has raised over $200 million in funding and has partnerships with several professional sports leagues and teams.
Learn more about WHOOP
Size
500 employees
Industry
Founded
2011

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