Principal Engineer, Mobile

Hims & Hers is the leading health and wellness platform, on a mission to help the world feel great through the power of better health. We are seeking a Principal Engineer, Mobile who will own the architectural evolution and strategic technical direction of our native mobile apps while mentoring the next generation of technical leaders.

Responsibilities:

• Define and evolve the architectural vision for our native mobile platforms (iOS and Android), ensuring scalability, performance, and reliability across the entire mobile ecosystem
• Lead by example—prototype, code, review PRs, and shape engineering standards that elevate quality across the org
• Partner cross-functionally with Product, Design, Data, and Platform teams to align technical roadmaps with customer and business goals
• Establish frameworks and standards that ensure engineering excellence—covering modularity, observability, CI/CD, release safety, and operational resilience
• Drive architectural modernization efforts—modularization, performance optimization, offline capabilities, and dependency management
• Contribute to the codebase for critical paths and architectural exemplars—setting the tone for craftsmanship, quality, and velocity
• Drive cross-org initiatives that unify app architecture, component libraries, and shared services—balancing platform consistency with team autonomy
• Shape mobile technical strategy, influencing native (Swift, Kotlin) and hybrid (React Native) approaches with a pragmatic, future-oriented mindset
• Mentor senior engineers and tech leads, raising the overall bar for system design, operational excellence, and customer empathy
• Champion mobile performance, reliability, and quality—building systems that anticipate scaling challenges, minimize app size, and ensure best-in-class user experiences
• Lead through ambiguity by identifying high-impact problems, clarifying ownership, and creating frameworks that drive momentum across teams
• Represent Mobile Engineering in company-wide architectural forums, ensuring mobile’s voice shapes Hims & Hers’ broader technical evolution
• Foster a culture of innovation and excellence, embedding principles of craftsmanship, experimentation, and continuous learning into the mobile organization
• Influence company-wide architecture by representing mobile in cross-platform technical strategy discussions

Requirements:

• 15+ years of software engineering experience, with deep expertise in native mobile engineering (Swift, Kotlin, Android SDK, iOS frameworks, ReactNative)
• Proven track record of architecting and delivering mobile applications at scale, including complex, distributed consumer systems
• Experience shaping cross-platform strategies (React Native, Kotlin Multiplatform, or similar) a strong plus
• Strong understanding of app architecture patterns, mobile CI/CD pipelines, and observability practices
• Demonstrated ability to drive technical strategy and lead cross-team initiatives that span multiple disciplines and product areas
• Deep knowledge of system performance, reliability, and mobile UX principles
• Strong business acumen—able to connect technical decisions to customer and company outcomes
• Exceptional collaboration and communication skills, with experience influencing across functions and leadership levels
• A passion for mentoring and growing technical talent, fostering excellence through coaching and exemplars
• Bachelor's or Master's degree in Computer Science, Engineering, or a related field (or equivalent experience)