Senior iOS Engineer
Job Summary
Job Description
WHOOP is seeking a Senior iOS Engineer for its Simplified Design Team to create an intuitive, world-class user experience focused on clarity and value. The role involves building features that help members optimize health and performance by connecting them to data science algorithms and visualizations. The engineer will work across WHOOP's core pillars: Strain, Sleep, and Recovery, delivering personalized guidance through engaging interfaces. Responsibilities include collaborating with cross-functional teams, developing and maintaining product features using Swift, communicating with a RESTful backend, documenting architecture, contributing to feature ideation and planning, analyzing user metrics to identify bugs and improve engagement, participating in the release process, self-organizing with tools like Jira, and staying updated with Apple frameworks and best practices. The role also includes mentoring junior developers.
Must have:
- Swift for product development
- Communicate with RESTful backend
- Document new features and architecture
- Analyze user metrics for bugs
- Participate in release process
- Self-organize using Jira, Confluence
- Stay up to date with Apple frameworks
- Lead new feature ideation
- Mentor junior developers
- Empathy for member experience
- Build, test, debug native iOS apps
- Experience with SwiftUI, UIKit
- Familiarity with MVVM/Viper
- Strong iOS memory management
- Experience with Xcode, Fastlane
- Experience mentoring junior engineers
Good to have:
- AutoLayout
- Interface Builder
- XCTest
- Swift Concurrency & GCD
- Develop libraries/frameworks
- CocoaPods
- Debug tooling
9 skills required
Job Details
At WHOOP, we're on a mission to unlock human performance and healthspan. WHOOP empowers users to perform at a higher level through a deeper understanding of their bodies and daily lives. Our wearable device tracks key physiological metrics such as heart rate variability, resting heart rate, and sleep quality to provide personalized insights into users' fitness, health, and recovery.
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.
RESPONSIBILITIES:
- 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
QUALIFICATIONS:
- 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
Learn more about our Software Org and how to be successful in your engineering career at WHOOP via our Career Framework.
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.
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.
WHOOP is an Equal Opportunity Employer and participates in E-verify to determine employment eligibility. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
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