Senior Software Engineer (Backend, Growth) jobs in United States
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WHOOP · 2 hours ago

Senior Software Engineer (Backend, Growth)

WHOOP is on a mission to unlock human performance and healthspan through their wearable technology. As a Senior Software Engineer, you will build backend services that impact business metrics and accelerate member growth, collaborating with cross-functional teams to deliver impactful features.

Consumer ElectronicsFitnessSportsWearablesWellness
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H1B Sponsor Likelynote

Responsibilities

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

Qualification

Backend systems developmentRESTful APIsEvent-driven architecturesRelational databasesTesting practicesA/B testing infrastructureCollaboration skillsGrowth mindsetDocumentation habits

Required

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

Preferred

Experience building A/B testing infrastructure or growth-focused engineering features

Benefits

Competitive base salaries
Meaningful equity
Benefits
A generous equity package

Company

WHOOP is a fitness tech company that offers wearables that track sleep, recovery, and performance.

H1B Sponsorship

WHOOP has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (32)
2024 (18)
2023 (15)
2022 (5)
2021 (17)
2020 (6)

Funding

Current Stage
Late Stage
Total Funding
$404.75M
Key Investors
SoftBank Vision FundIVPFoundry Group
2021-08-30Series F· $200M
2020-10-28Series E· $100M
2019-11-12Series D· $55M

Leadership Team

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Will Ahmed
Founder & CEO
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Aurelian Nicolae
Co-Founder & Chief Hardware Engineer
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Company data provided by crunchbase