Senior iOS Engineer

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 in Healthcare, you will help build and maintain exciting features that drive real health outcomes and connect members to our powerful data science algorithms through beautiful visualizations. You will help our members understand all aspects of their health: physical, mental, emotional, hormonal and guide them in ways to take action to improve it. Healthcare works with cutting-edge technology and research in both the medical and wellness industry, ranging from launching medical devices such as ECG, to expanding into the clinical space with Advanced Labs, to developing novel measurements and insights like WHOOP Age and Menstrual Cycle Insights.

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.
The WHOOP compensation philosophy is designed to attract, motivate, and retain exceptional talent by offering competitive base salaries, meaningful equity, and consistent pay practices that reflect our mission and core values.
At WHOOP, we view total compensation as the combination of base salary, equity, and benefits, with equity serving as a key differentiator that aligns our employees with the long-term success of the company and allows every member of our corporate team to own part of WHOOP and share in the company's long-term growth and success.
The U.S. base salary range for this full-time position is $150,000-$210,000. Salary ranges are determined by role, level, and location. Within each range, individual pay is based on factors such as job-related skills, experience, performance, and relevant education or training.
In addition to the base salary, the successful candidate will also receive benefits and a generous equity package.
These ranges may be modified in the future to reflect evolving market conditions and organizational needs. While most offers will typically fall toward the starting point of the range, total compensation will depend on the candidate's specific qualifications, expertise, and alignment with the role's requirements.