Senior Backend Software Engineer, WHOOP
AI Platform
$150-215k
+ Equity
4 days a week in office
Wearable health and fitness devices
Be an early applicant
Wearable health and fitness devices
1001+ employees
Be an early applicant
$150-215k
+ Equity
4 days a week in office
1001+ employees
Company mission
To unlock human performance and Healthspan.
Role
Who you are
- Strong experience building applications leveraging Large Language Models
- Experience in backend development, working on large-scale distributed software systems
- Expertise in API design and development (preferably with Java)
- Experience in relational database design and development (SQL)
- Experience with scalable system design and performance optimization
- Strong independent problem-solving skills and the ability to work effectively in a fast-paced, collaborative environment
- Excellent communication skills and a commitment to delivering high-quality work
- Expertise with Websockets is a plus
- 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
What the job involves
- The AI Platform team at WHOOP is responsible for building the foundation that enables scalable, responsible, and accessible use of Generative AI across our products
- We focus on developing reusable infrastructure, services, and tools that empower product and software teams to experiment with, integrate, and ship GenAI-powered features efficiently and safely
- By abstracting the complexities of large language models (LLMs) and enabling deliverability of personalized member insights, our platform accelerates innovation and ensures consistent, high-quality user experiences
- As a Senior Software Engineer on the AI Platform team, you will play a key role in designing and scaling the systems that serve as the backbone of WHOOP’s Generative AI capabilities
- You’ll build robust, modular services and developer-friendly tools that simplify working with GenAI models across the organization
- This role combines a platform mindset with engineering excellence, helping WHOOP unlock the full potential of Generative AI—across the Core product, coaching, insights, and beyond
- Help execute WHOOP's vision to build and scale the use of Generative AI
- Develop backend features and services, leveraging Java, AWS, and PostgreSQL to deliver scalable and reliable software solutions
- Collaborate with cross-functional teams—including Product, Design, and Data Science—to gather technical requirements and deliver impactful infrastructure and tools
- Design abstraction layers that empower Product and Software teams to leverage Generative AI in the WHOOP product
- Build data pipelines used to evaluate and fine-tune LLM models
- Consistently deliver high-quality code, adhering to best practices in software design and development
- Develop and maintain observability and monitoring systems to ensure the stability and reliability of deployed features
- Mentor and support junior engineers, fostering a culture of collaboration and continuous improvement
Our take
WHOOP develops wearable health-tracking devices designed to help athletes optimise their performance. Its technology continuously monitors recovery, sleep, and training hours to fine-tune both individual and team performance. Unlike competitors that primarily track exercise data, WHOOP's holistic approach includes metrics like heart rate variability, which can influence more effective and healthier exercise routines.
By focusing on a subscription model that includes the cost of the physical device, WHOOP differentiates itself from competitors that charge a higher one-time fee for their products. This model provides ongoing value and encourages users to stay engaged with their health data.
WHOOP's comprehensive monitoring of strain and recovery has given it a competitive edge, even as other brands like Fitbit have incorporated similar features. Beyond sports performance, WHOOP has conducted extensive research on predicting premature births, aiming to integrate these findings into their app. This commitment to broader health applications demonstrates WHOOP's dedication to advancing wearable health technology.
Steph
Company Specialist at Welcome to the Jungle
Insights
1% employee growth in 12 months
Company
Funding (last 2 of 9 rounds)
Mar 2026
$575m
SERIES G
Aug 2021
$200m
SERIES F
Total funding: $979.8m
Company benefits
- Flexible Vacation: WHOOP has a flexible vacation policy that allows you to unwind, laptop-free, when you need it most.
- Focus on Family: We offer 18 weeks paid parental leave, plus an additional 2 weeks to gradually return to work.
- Get Invested: In addition to a competitive base salary and 401k, you're eligible to receive stock options to share in the future of WHOOP.
- WHOOP +1: Everyone on the team gets a complimentary WHOOP membership—plus another membership to share with a loved one.
- Health Matters: Our competitive benefits package covers medical, dental, and vision, in addition to mental health services, life and disability insurance, and more.
- Find Your Fit: Full-time employees get $500 a year to spend on wellness in whatever way they see fit, from fitness classes and memberships, to recovery services.
- It Pays to Sleep: Our Sleep Performance Program incentivizes employees to get more sleep. Log an average sleep performance of 85% or higher for the month and get a $100 bonus.
- Location, Location, Location: You can’t beat the views from the rooftop of One Kenmore Square. Feel inspired daily as you work, enjoy free snacks and coffee, and collaborate in the heart of Boston.
Company HQ
West Fens, Boston, MA
Leadership
Will Ahmed
(Founder & CEO)After graduating from Harvard with a Bachelor of Arts in Government and Economics, Will went on to hold Summer Analyst roles at Allen & Company and Lindsay Goldberg before founding WHOOP in 2012.
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