iOS & React Native Mobile Engineer

Superpower, Inc; San Francisco (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Superpower, Inc. is seeking a Mobile Engineer to own the quality and development of our iOS experience.

You will work with product, design, and engineering to build fast, intuitive experiences that help members understand their health and take action, from development through App Store release. You will work across Swift, SwiftUI, UIKit, React Native, Expo, and TypeScript with hands-on expertise in both native iOS and React Native.

Qualifications

• Shipping and maintaining consumer iOS apps with clear ownership.
• Deep experience with Swift, including architecture, concurrency, memory management, production debugging and performance optimization.
• Deep experience with SwiftUI, UIKit and React Native/Expo/TypeScript, including architecture and performance optimization.
• Experience building native modules that connect Swift with React Native.
• Strong understanding of app architecture, state management, networking, testing and App Store release processes.
• Ability to work independently in a startup or small team; interest in healthcare/wellness is a plus.

Responsibilities

• Design and build mobile experiences in Swift and React Native for health results, biomarker data, chat, and core journeys.
• Collaborate with product, design, and clinical teams to clarify complex health information.
• Own mobile architecture, reusable components, and Swift-React Native integration including HealthKit, auth, notifications, and media access.
• Improve app performance, navigation, accessibility, and reliability across devices and networks.
• Own testing, observability, release tooling, and App Store delivery with sensitive health data handling.
• Work with web and backend engineers on shared data contracts and cross-platform development patterns.

Skills

Swift

SwiftUI

UIKit

React Native

Expo

TypeScript

Tools

Xcode

HealthKit

Job description

Superpower, Inc. is seeking a Mobile Engineer to own the quality and development of our iOS experience.

You will work with product, design, and engineering to build fast, intuitive experiences that help members understand their health and take action, from development through App Store release. You will work across Swift, SwiftUI, UIKit, React Native, Expo, and TypeScript with hands-on expertise in both native iOS and React Native.