Software Engineer II (Backend, Business Systems) 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. WHOOP is hiring a Software Engineer II to join the Business Systems team. In this role, you will design and implement the backend systems that power WHOOP’s internal operations, enabling scale and efficiency across the organization. You’ll architect and maintain critical services and integrations that support Finance, Operations, Member Services, and other business functions. By building reliable, secure, and performant systems, you’ll directly shape how WHOOP delivers value to its members and scales globally. This posting is for an immediate new hire to our team. For those graduating in the fall of 2026 seeking entry level roles, we kindly ask that you check out this New Grad Opportunities job posting instead to be considered for roles opening at that time. Thank you.\nRESPONSIBILITIES: Design, implement, and maintain scalable backend services and APIs that power business-critical systems and integrations. Contribute in design and implementation of scalable data pipelines, automation, and workflows that improve operational efficiency. Collaborate with product managers, data engineers, and internal business teams to gather requirements and build effective technical solutions. Contribute to the team’s codebase with high-quality, testable, and well-documented code. Identify system bottlenecks and improve the performance, reliability, and maintainability of backend systems. Contribute to long-term technical strategy for Business Systems and identify opportunities for automation and process improvement. Participate in code reviews and mentor junior engineers to foster a culture of engineering excellence. QUALIFICATIONS: BS in Computer Science, Engineering, or equivalent experience. 2+ years of experience in backend software development with a strong foundation in computer science principles Strong proficiency in at least one modern backend programming language (e.g., Java, Python, Go, or similar). Experience building and maintaining APIs, integrations, and distributed systems. Comfortable working with relational databases, data modeling, and query optimization. Experience with cloud-based infrastructure (e.g., AWS, GCP, or Azure) and distributed systems. Excellent communication skills and ability to work cross-functionally with technical and non-technical teams Strong sense of ownership and ability to deliver quality solutions in a fast-paced environment A growth mindset and eagerness to learn from feedback and new challenges. Strong commitment to embracing and leveraging AI tools in day-to-day tasks, ensuring AI-assisted work aligns with the same high-quality standards as personal contributions. \nLearn 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. The WHOOP compensation philosophy is designed to attract, motivate, and retain exceptional talent by offering competitive base salaries, meaningful equity, and consistent pay practices that reflect our mission and core values. At WHOOP, we view total compensation as the combination of base salary, equity, and benefits, with equity serving as a key differentiator that aligns our employees with the long-term success of the company and allows every member of our corporate team to own part of WHOOP and share in the company’s long-term growth and success. 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.