Software Engineer I (Backend)

Whoop

Boston, MA💼 Full-time💰 $105,000–$105,000🗓 2026-07-01 → 2026-09-26

Core

Design, develop, and maintain backend services and APIs powering WHOOP's wearable health and fitness product.

Role type

Junior backend software engineer (IC)

Builds

Scalable, reliable backend services and APIs for member-facing features

Domain

Health tech / Wearables / Cloud infrastructure

Deliverable

production ML models | product features

Required skills

Java, RESTful APIs, relational databases (Postgres), Git, object-oriented programming, system design basics, distributed systems concepts, event-driven architectures, cloud platforms (AWS)

Preferred skills

Kafka, troubleshooting production systems, technical documentation

Responsibilities

Develop and maintain backend services and APIs, collaborate with cross-functional partners to translate requirements into technical solutions, write clean and tested code, support operation and monitoring of production systems, break down feature requirements into actionable tasks, contribute to technical documentation

Seniority

Junior, entry-level IC

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About Whoop

WHOOP is looking for a Staff Mechanical Engineer to lead critical design, validation, and development execution for next generation biometric wearable products. You are a proactive, highly organized engineer with strong problem-solving skills and a sharp eye for detail. You thrive in a fast-paced, execution-driven setting and can drive creative mechanical design solutions with independence and sound technical judgement. You will mentor junior mechanical engineers and collaborate with cross-functional stakeholders (Electrical Engineering, Embedded Engineering, Manufacturing, Product, and Progra