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At WHOOP, we're on a mission to unlock human performance and healthspan.

WHOOP empowers members to perform at a higher level and live longer through a deeper understanding of their bodies and daily lives.

Protecting our members’ data and ensuring our systems scale securely and reliably is core to this mission.

The Client Platform team is responsible for building the foundational mobile and web systems that power WHOOP’s member experience globally.

As an iOS Engineer II on this team, you will develop shared frameworks, design system components, and internationalization capabilities that enable teams to deliver consistent, high-quality experiences across regions and languages.

In this role, you will focus on advancing WHOOP’s global readiness by supporting internationalization (i18n), including right-to-left (RTL) language support, while also contributing to a scalable and robust design system.

You’ll work closely with backend, design, and product teams to ensure the app is flexible, accessible, and performant across diverse user needs.

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RESPONSIBILITIES

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• Design, build, and maintain scalable iOS features that integrate with WHOOP’s platform services and APIs.
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• Collaborate with backend, infrastructure, and product teams to ensure seamless integration between mobile apps and core platform systems.
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• Implement mobile architecture patterns (e.g., MVVM) and best practices to ensure reliability, maintainability, and scalability.
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• Contribute to developer enablement by improving shared libraries, frameworks, and tooling for the iOS codebase.
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• Monitor app performance, diagnose issues, and optimize for responsiveness and efficiency.
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• Write well-tested, secure code and participate in code reviews to uphold high engineering standards.
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• Document technical decisions, features, and architecture to support knowledge sharing and team growth.
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QUALIFICATIONS

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• 2–4 years of professional iOS development experience.
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• Proficiency with Swift and iOS frameworks such as SwiftUI and UIKit.
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• Strong knowledge of iOS app structure, lifecycle, concurrency, and memory management.
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• Experience integrating with RESTful APIs and backend services.
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• Experience working with atomic design principles and reusable component design
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• Familiarity with modern mobile architecture and design patterns (e.g., MVVM, modular design).
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• Experience with version control (Git) and productivity tools (Jira, Confluence, GitHub).
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• Product-minded engineer with empathy for the member experience.
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• <div><em>Learn more about our Software Org and how to be successful in your&nbsp;engineering&nbsp;career at WHOOP via our&nbsp;</em><a rel="noopener noreferrer" href="https://engineering.prod.whoop.com/careerframework"><em>Career Framework</em></a><em>.</em></div>
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• <div><strong><em>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.</em></strong></div>
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• <div><em>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.</em></div>
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• <div><em>WHOOP is an Equal Opportunity Employer and participates in&nbsp;</em><a rel="noopener noreferrer" href="https://www.e-verify.gov/"><em>E-verify</em></a><em>&nbsp;to determine employment eligibility.&nbsp; 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.</em></div>
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• <div><em>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.</em></div>
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• <div><em>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.</em></div>
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• <div><em>The U.S. base salary range for this full-time position is $125,000-$175,000.
• 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.&nbsp;</em></div>
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• <div><em>In addition to the base salary, the successful candidate will also receive benefits and a generous equity package.</em></div>
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• <div><em>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.</em></div>
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• <div><em>Learn more about&nbsp;</em><a rel="noopener noreferrer" href="https://www.whoop.com/us/en/careers/?srsltid=AfmBOopKmph9d0DLBlogZu8mx6do0dzjNS8eJlfc4PQqQtdU6F8DGKBg"><em>WHOOP</em></a><em>.</em></div>
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