Software Engineer I (Backend, Growth)

Whoop•Boston, MA

6d•$105,000 - $145,000•Onsite

About The Position

At WHOOP, the mission is to unlock and inspire performance for life. The Software Engineer I contributes to the design, development, and maintenance of services that power WHOOP’s core product experiences. Working with experienced engineers, product managers, designers, and data scientists, this engineer helps build scalable, reliable systems that deliver meaningful insights to members. This is a growth-oriented role for an engineer eager to learn, ship high-quality code, and contribute in a fast-paced, mission-driven environment. The role is based in WHOOP’s Boston, Massachusetts office, and the successful candidate must be prepared to relocate if necessary to work there. The position is an immediate new hire; candidates graduating in Winter 2026 or Spring 2027 are directed to a separate New Grad Opportunities posting. WHOOP offers a base salary, equity, and benefits. The U.S. base salary range for this full-time position is $105,000–$145,000. Individual pay depends on factors including job-related skills, experience, performance, and relevant education or training. The successful candidate will also receive benefits and an equity package.

Requirements

Professional experience in backend software development; internship, co-op, or academic project experience is acceptable.
Experience building or interacting with RESTful APIs and relational databases such as Postgres or similar SQL-based systems.
Proficiency in an object-oriented programming language such as Java, or demonstrated ability to learn new backend technologies quickly.
Familiarity with version control systems such as Git and standard development workflows.
Understanding of fundamental computer science concepts, including data structures, algorithms, and system design basics.
Strong problem-solving skills and a growth mindset, including willingness to seek feedback and continuously improve.
Effective communication skills and ability to collaborate in a cross-functional team environment.

Nice To Haves

Interest in distributed systems, event-driven architectures such as Kafka, and cloud platforms such as AWS.

Responsibilities

Contribute to the development and maintenance of backend services and APIs powering member-facing features, using technologies such as Java, Kafka, Postgres, and AWS.
Collaborate with Product, Design, Data Science, and Engineering partners to translate requirements into well-scoped technical solutions.
Write clean, maintainable, well-tested code and participate in code reviews to improve engineering quality and standards.
Support production system operations and monitoring, help troubleshoot issues, and contribute to reliability, scalability, and performance.
Break down feature requirements into actionable tasks, identify risks early, and iterate quickly to deliver value to members.
Contribute to technical documentation and knowledge sharing to support team velocity and long-term maintainability.