Senior iOS Engineer

whoop

| Boston, Massachusetts, United States (On Site) | Full Time | 4 months ago

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Job Summary

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

Job Description

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.