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Principal Ios Engineer Jobs (NOW HIRING)

WHOOP

Staff iOS Engineer (Connectivity)

Boston, MA · On-site

$56.25 - $77.50/hr

The Staff iOS Engineer will design and implement software that enables seamless communication ... design principals to build scalable, modular, testable software. • Experience debugging and ...

WHOOP

Staff iOS Engineer (Connectivity)

Boston, MA · On-site

$56.25 - $77.50/hr

The Staff iOS Engineer will design and implement software that enables WHOOP's wearable sensors to ... design principals to build scalable, modular, testable software. • Experience debugging and ...

Whoop

Staff iOS Engineer (Connectivity)

Boston, MA · On-site

$170K - $230K/yr

As an iOS Software Engineer on this team, you'll design and implement the software that enables ... design principals to build scalable, modular, testable software. > * Experience debugging and ...

Whoop

Staff iOS Engineer (Connectivity)

Boston, MA

$170K - $230K/yr

As an iOS Software Engineer on this team, you'll design and implement the software that enables ... design principals to build scalable, modular, testable software. * Experience debugging and ...

Whoop

Staff iOS Engineer (Connectivity)

Boston, MA

$170K - $230K/yr

As an iOS Software Engineer on this team, you'll design and implement the software that enables ... design principals to build scalable, modular, testable software. * Experience debugging and ...

Roblox

Senior Software Engineer, iOS

San Mateo, CA

$159K/yr

We're hiring an exceptional iOS engineer to help us push the bar even higher. You will: * Shape ... work. * (Principal) Set technical direction across multiple workstreams, drive multi-quarter ...

Whoop

Senior iOS Engineer (Connectivity)

Boston, MA · On-site

$150K - $210K/yr

As an iOS Software Engineer on this team, you'll design and implement the software that enables ... Demonstrated examples applying architectural and platform-based software design principals to build ...

Whoop

Senior iOS Engineer (Connectivity)

Boston, MA · On-site

$150K - $210K/yr

As an iOS Software Engineer on this team, you'll design and implement the software that enables ... Demonstrated examples applying architectural and platform-based software design principals to build ...

Whoop

Senior iOS Engineer (Connectivity)

Boston, MA · On-site

$150K - $210K/yr

As an iOS Software Engineer on this team, you'll design and implement the software that enables ... Demonstrated examples applying architectural and platform-based software design principals to build ...

Roblox

Senior Software Engineer, iOS

San Mateo, CA · On-site

$295K - $345K/yr

We're hiring an exceptional iOS engineer to help us push the bar even higher. You will: * Shape ... work. * (Principal) Set technical direction across multiple workstreams, drive multi-quarter ...

Nwis

Principal Cyber Software Engineer (iOS)

Sterling, VA

$133K - $179K/yr

Principal Cyber Engineer Cyber Offense and Defense Experts (CODEX) is seeking a cyber engineer to ... Experience developing on iOS * Experience with objective C * Experience with core Unix features ...

Nightwing

Principal Cyber Software Engineer (iOS)

Sterling, VA · On-site

$133K - $179K/yr

Principal Cyber Engineer Cyber Offense and Defense Experts (CODEX) is seeking a cyber engineer to ... Experience developing on iOS * Experience with objective C * Experience with core Unix features ...

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All JobsPrincipal Ios Engineer Jobs

Principal Ios Engineer information

See salary details

$74K

$147.2K

$212.5K

How much do principal ios engineer jobs pay per year?

As of Jun 9, 2026, the average yearly pay for principal ios engineer in the United States is $147,220.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,500.00 and $173,000.00 per year, depending on experience, location, and employer.

How does a Principal iOS Engineer typically collaborate with cross-functional teams during product development?

A Principal iOS Engineer often works closely with product managers, designers, backend engineers, and QA specialists throughout the development lifecycle. They provide technical leadership by setting mobile app architecture standards, reviewing code, and ensuring best practices are followed. Regular participation in sprint planning, design reviews, and stakeholder meetings is common, allowing them to align technical solutions with business goals and mentor junior developers. Their collaborative approach ensures the delivery of high-quality, scalable iOS applications.

What is a Principal iOS Engineer?

A Principal iOS Engineer is a senior-level software engineer who specializes in designing, developing, and maintaining high-quality applications for Apple's iOS platform. They typically lead technical decisions, set coding standards, mentor junior engineers, and collaborate with cross-functional teams to deliver robust mobile solutions. In addition, they often contribute to architectural planning, performance optimization, and ensure best practices are followed throughout the iOS development lifecycle.

What is the difference between Principal Ios Engineer vs Senior Ios Engineer?

AspectPrincipal Ios EngineerSenior Ios Engineer
Required CredentialsBachelor's or higher in CS, extensive iOS experienceBachelor's or higher in CS, solid iOS experience
Work EnvironmentLeadership roles, architecture design, cross-team collaborationDevelopment, debugging, feature implementation
Employer & Industry UsageTech companies, startups, large enterprisesTech companies, startups, app development firms
Common Search & ComparisonYesYes

The main difference between a Principal Ios Engineer and a Senior Ios Engineer lies in their level of responsibility and scope. Principal Ios Engineers typically lead architecture decisions, mentor teams, and influence product strategy, while Senior Ios Engineers focus on developing features and solving complex problems. Both roles require strong iOS development skills, but the Principal role involves more leadership and strategic planning.

What are the key skills and qualifications needed to thrive as a Principal iOS Engineer, and why are they important?

To thrive as a Principal iOS Engineer, you need deep expertise in Swift, Objective-C, mobile architecture, and a proven track record in leading app development, often supported by a computer science degree or equivalent experience. Mastery of Xcode, iOS SDKs, version control systems like Git, and familiarity with CI/CD pipelines and automated testing tools are typically required. Exceptional leadership, mentoring, problem-solving, and communication skills help you guide teams and collaborate across functions. These skills are crucial to delivering high-quality, scalable applications and driving technical excellence within an organization.
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What job categories do people searching Principal Ios Engineer jobs look for? The top searched job categories for Principal Ios Engineer jobs are:
Principal Ios Engineer jobs near you
Infographic showing various Principal Ios Engineer job openings in the United States as of May 2026, with employment types broken down into 96% Full Time, 1% Part Time, and 3% Contract. Highlights an 94% Physical, 2% Hybrid, and 4% Remote job distribution, with an average salary of $147,220 per year, or $70.8 per hour.
Staff iOS Engineer (Connectivity)

Staff iOS Engineer (Connectivity)

WHOOP

Boston, MA • On-site

$56.25 - $77.50/hr

Full-time

Posted 22 days ago

Job description

Job Summary:
WHOOP is on a mission to unlock human performance by empowering people through a deeper understanding of their bodies. The Staff iOS Engineer will design and implement software that enables seamless communication between WHOOP’s wearable sensors and the mobile platform, ensuring reliable data flow across the ecosystem.
Responsibilities:
• Architect, design, implement, and maintain iOS application components that interface directly with WHOOP hardware over Bluetooth Low Energy (BLE), Wi-Fi, or other communication protocols.
• Define and evolve the iOS software architecture and communication protocols, maintain comprehensive documentation, and drive consistency across iOS and Android implementations.
• Drive continuous improvement of performance, power efficiency, and reliability in the WHOOP connectivity software layer including background and system-level iOS services to enable reliable device connectivity, synchronization, and data transfer.
• Champion strong software architectural principles for testable, scalable, maintainable software on your own team and across the organization.
• Own and maintain a clear, prioritized backlog focused on code health, technical debt reduction, and testability improvements.
• Raise the bar and champion higher engineering standards through prompt code review, increased test coverage, and improved design practices. Hold teammates accountable.
• Represent the Connectivity iOS team in cross-functional settings such as bug triage, product syncs, firmware coordination, and guild representation.
• 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:
Required:
• BS or MS in Computer Science, Electrical Engineering, or a related technical field, or equivalent experience.
• 5+ 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 influencing other engineers in the application of 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, driving cross-functional problem solving, tradeoff definition, and optimization.
• 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.
Company:
WHOOP provides wearable fitness technology and a subscription platform that tracks physiological data for health and performance insights. Founded in 2012, the company is headquartered in Boston, USA, with a team of 501-1000 employees. The company is currently Late Stage.
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About Whoop

Sourced by ZipRecruiter

At WHOOP, we're on a mission to unlock human performance. WHOOP empowers users (Olympians, Professional Athletes, Fitness Enthusiasts, etc) to perform at a higher level through a deeper understanding of their bodies and daily lives.

Industry

Fitness and sports centers

Company size

501 - 1,000 Employees

Headquarters location

Boston, MA, US

Year founded

2012

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