Lead Software Engineer iOS

We know that people want great value combined with an excellent experience from a bank they can trust so we launched our digital bank Chase UK to revolutionise mobile banking with seamless journeys that our customers love. Were already trusted by millions in the US and were quickly catching up in the UK but how we do things here is a little different. Were building the bank of the future from scratch channelling our start-up mentality every step of the way meaning youll have the opportunity to make a real impact.

As a Lead Software Engineer iOS Engineer within JPMorgan Chases International Consumer Bank youll design and build secure high-performance cloud-connected iOS applications in a flat-structure product-oriented team. Youll own end-to-end delivery across the SDLCfrom architecture and design through implementation testing release and observabilitywhile partnering closely with our Front-End Engineering team including React Native colleagues to ship delightful compliant and resilient customer experiences.

Job responsibilities:

• Lead a ReactNativefirst architecture while delivering native iOS modules in Swift where they add clear value.
• Build and maintain Expo modules that expose iOS capabilities to React Native; ensure clean integration with the iOS project.
• Contribute to the React Native codebase (TypeScript/JavaScript) including component APIs shared utilities and the crossplatform design system.
• Architect and implement native iOS features (SwiftUI and/or UIKit) with strong emphasis on performance accessibility and maintainability.
• Design resilient networking for cloud services (URLSession background tasks WebSockets where appropriate) with retry/backoff efficient payloads and offlineaware caching.
• Uphold iOS security best practices: Keychain App Transport Security certificate pinning Secure Enclave biometrics and privacybydesign data handling.
• Ensure compliance with Apple Human Interface Guidelines App Store Review Guidelines ATS and accessibility standards.
• Test comprehensively: unit/integration (XCTest) UI automation (XCUITest) and endtoend coverage for critical flows (e.g. Detox).
• Optimize performance and observability across RN and native boundaries; profile with Xcode Instruments and enforce performance budgets (startup memory battery UI responsiveness).
• Partner crossfunctionally (FrontEnd Backend Product Design); own releases (code signing/provisioning TestFlight/App Store) troubleshoot across devices/OS and mentor developers while driving continuous improvement.

Required qualifications capabilities and skills

• Formal training or certification on iOS concepts and proficient applied experience
• Significant experience delivering production iOS applications in Swift with mastery of platform APIs (SwiftUI and/or UIKit) concurrency (async/await GCD) and modular architectures (e.g. MVVM).
• Strong networking expertise on iOS: URLSession background tasks structured error handling resilient retry/backoff efficient payloads pagination and offlineaware caching; solid understanding of RESTful APIs.
• Deep knowledge of iOS security best practices: Keychain App Transport Security TLS certificate pinning biometrics via LocalAuthentication Secure Enclave and privacyfirst data handling.
• Firm understanding of Apple standards: Human Interface Guidelines App Store Review Guidelines ATS and accessibility (VoiceOver Dynamic Type contrast).
• Proficiency in testing for reliability: unit/integration with XCTest UI automation with XCUITest; ability to design testable code and maintain deterministic CI pipelines.
• Performance and observability skills: profiling with Xcode Instruments (startup time memory battery) structured logging and crash analytics; ability to set and meet performance budgets.
• Experience with release and distribution: code signing/provisioning TestFlight/App Store submissions staged rollouts and postrelease monitoring.
• Familiarity with dependency and build tooling: Swift Package Manager and/or CocoaPods Xcode build settings and project configuration.
• Strong collaboration and communication skills; effective partnership with FrontEnd Engineering backend services product and design; clear written and verbal communication in English.
• Comfortable working in a dynamic agile geographically distributed environment; drives highquality code reviews documentation and continuous improvement.

Preferred qualifications capabilities and skills

• Experience contributing to React Native codebases (TypeScript/JavaScript) and collaborating across native/RN boundaries.
• Experience building Expo modules to expose iOS capabilities to React Native and integrating them cleanly into iOS projects.
• Familiarity with modern React patterns (Hooks Suspense) and RNnative bridging concepts.
• Experience with endtoend testing for mobile (e.g. Detox Appium WebdriverIO).
• Knowledge of mobile observability (structured logging metrics crash analytics).
• Familiarity with GraphQL alongside REST.
• Experience with design systems and componentdriven development across native and RN.

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