The Role
As a Senior iOS Engineer, you'll develop and maintain iOS components for WHOOP hardware, enhancing connectivity and data transfer while collaborating with cross-functional teams.
Summary Generated by Built In
At WHOOP, we're on a mission to unlock human performance and healthspan. WHOOP empowers people to perform at a higher level through a deeper understanding of their bodies and daily lives. We handle massive amounts of data continuously streaming up to the cloud from people improving their health and wellness to the world’s greatest sports teams and athletes mandating a fault-tolerant and highly available product.
The Connectivity Software Team builds the critical link between WHOOP hardware, the iOS app, and the cloud. As an iOS Software Engineer on this team, you’ll design and implement the software that enables WHOOP’s wearable sensors to communicate seamlessly with the mobile platform. You’ll develop and optimize connectivity experiences that are robust, efficient, and invisible to the member — ensuring reliable data flow across our entire ecosystem.
RESPONSIBILITIES:
- Design, implement, and maintain iOS application components that interface directly with WHOOP hardware over Bluetooth Low Energy (BLE), Wi-Fi, or other communication protocols.
- Develop background and system-level iOS services that ensure reliable device connectivity, synchronization, and data transfer.
- Leverage Swift and Combine to build resilient, efficient, and maintainable reactive pipelines for connectivity and data management.
- Collaborate closely with embedded firmware, mobile, and cloud engineers to diagnose and resolve issues across a distributed system.
- Drive continuous improvement of performance, power efficiency, and reliability in the WHOOP connectivity layer.
- Champion strong software architectural principles for testable, scalable, maintainable software on your own team and across the organization.
- Document new features and architecture using Jira, Confluence and preparing code using Github feature, develop, and master branches.
- 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.
QUALIFICATIONS:
- BS or MS in Computer Science, Electrical Engineering, or a related technical field, or equivalent experience.
- 3+ years of professional iOS software engineering experience with a solid foundation in Swift, iOS system APIs, concurrency, and memory management.
- Hands-on experience with Combine and background task processing for non-UI iOS features.
- Demonstrated examples applying architectural and platform-based software design principals to build scalable, modular, testable software.
- Experience debugging and diagnosing issues across complex or distributed systems (for example: firmware, mobile, backend) is a strong plus.
- Excellent collaboration and communication skills with a focus on cross-functional problem solving.
- Strong commitment to embracing and leveraging AI tools in day-to-day tasks, ensuring AI-assisted work aligns with the same high-quality standards as personal contributions.
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.
Learn more about WHOOP.
Skills Required
- BS or MS in Computer Science, Electrical Engineering, or related technical field, or equivalent experience
- 3+ years of professional iOS software engineering experience
- Solid foundation in Swift, iOS system APIs, concurrency, and memory management
- Hands-on experience with Combine and background task processing
- Experience debugging and diagnosing issues across complex or distributed systems
- Excellent collaboration and communication skills
What the Team is Saying
Josh
Lead Designer
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Manan Dedhia
Field Quality Manager
Anahis
Staff Tech Lead - Mechanical Engineering
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WHOOP Compensation & Benefits Highlights
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Parental & Family Support — Policies include 18 weeks of paid parental leave plus two additional weeks to support return-to-work. Feedback suggests this depth of leave is a standout element of the package.
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Wellbeing & Lifestyle Benefits — Offerings span medical/dental/vision, mental-health support, a $500 wellness stipend, daily meals, onsite gym/recovery tools, commuter benefits, and free WHOOP memberships. These wellness-forward perks collectively signal strong everyday support for employees’ health and lifestyle.
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Equity Value & Accessibility — Stock options are granted at hire and ownership is emphasized as part of total rewards. Feedback suggests this equity component is valued alongside cash compensation.
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The Company
What We Do
At WHOOP, we’re on a mission to unlock human performance. WHOOP empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives. Our wearable device and performance optimization platform has been adopted by many of the world's greatest athletes and consumers alike.
Why Work With Us
At WHOOP, we’re focused on building an inclusive and equitable team with a strong sense of belonging for everyone—increasing representation in every way as our team grows. We believe that our differences are our source of strength—so much so it’s one of our core values.
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WHOOP Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Typical time on-site:
4 days a week
