Senior iOS Engineer, WHOOP
Simplified Design
4+ days a week in office
Wearable health and fitness devices
Job no longer available
Wearable health and fitness devices
1001+ employees
Job no longer available
4+ days a week in office
1001+ employees
Company mission
To unlock human performance and Healthspan.
Role
Who you are
- Product minded engineer with empathy for the member experience
- Experience in building, testing, debugging, and delivering native iOS apps in a professional environment
- Experience with Swift and iOS frameworks such as SwiftUI, UIKit, AutoLayout, Interface Builder, XCTest
- Familiarity with MVVM/Viper architecture
- Strong knowledge of iOS memory management and concurrency (Swift Concurrency & GCD)
- Experience developing libraries/frameworks and tooling that are used by other developers
- Excellent knowledge of Xcode, Fastlane, Swift Package Manager, CocoaPods, and debug tooling
- Experience communicating with a RESTful backend
- Willingness to learn and grow rapidly across iOS and external systems
- Experience mentoring more junior engineers
What the job involves
- As a Senior iOS Engineer on the Simplified Design Team, you will design an intuitive, world-class experience that prioritizes clarity, eliminates friction and highlights value across the member journey
- This is accomplished by building features that enable members to optimize their health and performance by connecting members to our powerful data science algorithms through our beautiful visualizations
- Working alongside product management, design, and fellow engineers, your work will span WHOOP’s three core pillars Strain, Sleep, and Recovery delivering personalized guidance through engaging and intuitive user interfaces
- Work in a cross functional team that collaborates closely with the data science, product, and software engineering teams at WHOOP
- Utilize knowledge of Swift to develop and maintain product features and communicate with a RESTful backend
- Document new features and architecture
- Contribute to new feature ideation, planning, and development
- Analyze and monitor user metrics and feedback to determine crash rate or potential bugs and to improve engagement
- Participate in the release process including getting the app built, managing build variants, signing, sending and testing through Firebase, and submitting to the App store
- Self organize using productivity tools such as Jira, Confluence, and Github
- Stay up to date with the latest Apple frameworks and best practices
- Lead and contribute to new feature ideation, planning, and development
- Help mentor and elevate junior developers on the team
- 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
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 its 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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