Whoop
Whoop3mo ago

Senior Software Engineer (Backend, Growth)

United StatesBostonsenior
Backend EngineeringSoftware EngineerSoftware Engineering
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Quick Summary

Overview

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.

Technical Tools
Backend EngineeringSoftware EngineerSoftware Engineering
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. Our wearable technology monitors vital physiological metrics to offer personalized insights that enhance fitness, health, and recovery.
 
The Growth Team at WHOOP is a fast-paced, experimentation-driven group focused on driving user acquisition, activation, and retention. We take a data-driven approach to everything we do, frequently measuring the performance of our features and iterating based on those results.
 
As a Senior Software Engineer, you will play a key role in building backend services that directly impact our business metrics and accelerate member growth. You'll work cross-functionally to deliver high-leverage features and contribute to system architecture decisions, helping WHOOP scale to millions of members.
  • Design and build scalable and reliable backend services to support growth experiments, e-commerce flows, and member engagement initiatives.
  • Collaborate closely with Product, Design, and cross-functional Engineering teams to define and deliver impactful features.
  • Maintain and optimize APIs and infrastructure using Java, Kafka, Postgres, and AWS technologies.
  • Take ownership of end-to-end development, from breaking down requirements to implementation, testing, deployment, and monitoring.
  • Mentor junior engineers and contribute to the growth of engineering best practices across the team.
  • Professional experience developing large-scale backend systems in a production environment.
  • Deep proficiency in building and maintaining RESTful APIs and working with relational databases (e.g., Postgres).
  • Experience with event-driven architectures and tools like Kafka or SQS.
  • Strong testing practices and clear documentation habits.
  • Ability to thrive in a fast-paced, iterative environment focused on growth and experimentation.
  • Proven collaboration skills across engineering, product, and data teams.
  • A growth mindset and excitement for tackling ambiguous challenges.
  • Bonus: Experience building A/B testing infrastructure or growth-focused engineering features.
  • Listing Details

    Posted
    January 9, 2026
    First seen
    March 25, 2026
    Last seen
    April 24, 2026

    Posting Health

    Days active
    30
    Repost count
    0
    Trust Level
    29%
    Scored at
    April 25, 2026

    Signal breakdown

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    Whoop
    Whoop
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    WHOOP is the performance optimization system that helps elite athletes and teams win.

    Employees
    125
    Founded
    2012
    Domain
    whoop.com
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    WhoopSenior Software Engineer (Backend, Growth)