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. We're already trusted by millions in the US and we're quickly catching up in the UK – but how we do things here is a little different.

We're building the bank of the future from scratch, channelling our start‑up mentality every step of the way – meaning you'll have the opportunity to make a real impact.

As a Lead Software Engineer – iOS Engineer within JPMorgan Chase’s International Consumer Bank, you’ll design and build secure, high‑performance, cloud‑connected iOS applications in a flat‑structure, product‑oriented team. You’ll own end‑to‑end delivery across the SDLC—from architecture and design through implementation, testing, release, and observability—while partnering closely with our Front‑End Engineering team, including React Native colleagues, to ship delightful, compliant, and resilient customer experiences.

• Lead a React‑Native‑first 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 (Type Script/JavaScript), including component APIs, shared utilities, and the cross‑platform design system.
• Architect and implement native iOS features (Swift
  
  UI and/or UIKit) with strong emphasis on performance, accessibility, and maintainability.
• Design resilient networking for cloud services (URL Session, background tasks, Web Sockets where appropriate), with retry/backoff, efficient payloads, and offline‑aware caching.
• Uphold iOS security best practices:
  Keychain, App Transport Security, certificate pinning, Secure Enclave, biometrics, and privacy‑by‑design 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 end‑to‑end 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 cross‑functionally (Front‑End, Backend, Product, Design); own releases (code signing/provisioning, Test Flight/App Store), troubleshoot across devices/OS, and mentor developers while driving continuous improvement.

• Formal training or certification on iOS concepts and proficient applied experience
• Significant experience delivering production iOS applications in Swift, with mastery of platform APIs (Swift
  
  UI and/or UIKit), concurrency (async/await, GCD), and modular architectures (e.g., MVVM).
• Strong networking expertise on iOS: URL Session, background tasks, structured error handling, resilient retry/backoff, efficient payloads, pagination, and offline‑aware caching; solid understanding of RESTful APIs.
• Deep knowledge of iOS security best practices:
  Keychain, App Transport Security, TLS certificate pinning, biometrics via Local Authentication, Secure Enclave, and privacy‑first data handling.
• Firm understanding of Apple standards:
  Human Interface Guidelines, App Store Review Guidelines, ATS, and accessibility (Voice Over, 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, Test Flight/App Store submissions, staged rollouts, and post‑release monitoring.
• Familiarity with dependency and build tooling:
  Swift Package Manager and/or Cocoa Pods, Xcode build settings, and project configuration.
• Strong collaboration and communication skills; effective…