Associate Staff Engineer (Mobile iOS Swift UI)

Requirements

• Experience : 4years
• Hands-on mobile engineering experience in iOS development.
• Hands-on experience developing and shipping production applications using React Native JavaScript and TypeScript.
• Hands-on native iOS development experience using Swift SwiftUI and UIKit with working knowledge of Objective-C for legacy modules.
• Proven experience working on brownfield applications where React Native screens coexist with native iOS screens.
• Mandatory experience developing native iOS modules or view managers consumed by JavaScript through the legacy bridge and/or TurboModules and Fabric.
• Experience supporting high-traffic consumer applications in production including crash investigation bug fixing hotfixes and release management.
• Experience in e-commerce or content and commerce applications is preferred.
• Strong proficiency in JavaScript TypeScript React and React Native component navigation and state-management architecture.
• Hands-on experience with state-management libraries such as Redux MobX Zustand or Recoil.
• Strong understanding of React Native internals including Hermes Fabric TurboModules JSI code generation and the legacy bridge.
• Expertise in integrating React Native into large-scale native iOS applications including hosting React Native views developing native modules bridging and exposing native UI components.
• Strong Swift programming fundamentals SwiftUI UIKit and working knowledge of Objective-C.
• Good understanding of iOS platform concepts including application lifecycle concurrency (GCD and async/await) memory management networking persistence push notifications deep links universal links App Store requirements and privacy standards.
• Experience with mobile architecture patterns such as MVVM Clean Architecture object-oriented analysis and design and modular application development.
• Strong knowledge of testing frameworks and practices across both platforms including Jest React Native Testing Library Detox and XCTest.
• Hands-on experience with Xcode CocoaPods Swift Package Manager Metro Fastlane and CI/CD pipelines.
• Experience in production debugging crash analysis and performance profiling using Instruments Hermes Profiler Flipper React DevTools Crashlytics or Sentry.
• Understanding of API integration mobile security caching strategies and offline-first application development.
• Strong understanding of clean code principles SOLID principles and Agile development methodologies.
• Proven ability to manage end-to-end ownership of product modules including architecture implementation testing release and production support.
• Experience in large-scale application migration platform modernization or refactoring initiatives with controlled rollouts and rollback strategies.
• Strong technical leadership problem-solving communication and collaboration skills.
• Ability to conduct code reviews mentor developers establish engineering standards and influence mobile architecture decisions.
• Experience with React Native migration from the legacy bridge to the new architecture (Fabric and TurboModules) is an added advantage.
• Familiarity with over-the-air updates using CodePush or EAS Updates feature flags and A/B testing platforms is desirable.
• Experience with monorepos shared design systems and e-commerce features such as catalogue cart checkout and payments is an added advantage.

Responsibilities

• Architect design and develop customer-facing mobile features for the AJIO iOS application with React Native as the primary development framework.
• Build scalable reusable and high-performance React Native components and modules using JavaScript and TypeScript.
• Develop and maintain native iOS features using Swift SwiftUI and UIKit wherever platform-specific capabilities performance or SDK integrations require native implementation.
• Maintain and enhance existing native iOS modules including legacy components developed using Objective-C.
• Own end-to-end development of product modules from requirement analysis and architecture design through development testing release and post-production support.
• Own the integration layer between native iOS and React Native including native modules native UI components bridging and communication between JavaScript and native code.
• Ensure seamless user experience across native and React Native screens covering navigation back-stack management session authentication cart state deep linking analytics and crash attribution.
• Drive the incremental migration of the existing native iOS application towards a React Native-first architecture without compromising application stability performance or release velocity.
• Define migration strategies screen sequencing feature parity acceptance criteria phased rollouts feature flags and rollback mechanisms.
• Support the live production application by investigating and resolving issues across native and React Native layers managing crash triage hotfixes and production releases.
• Monitor and improve application performance including cold start time React Native time-to-interactive bundle size memory consumption rendering performance and frame drops.
• Use Xcode Instruments Hermes Profiler Flipper and React DevTools to identify and resolve performance bottlenecks.
• Own the iOS build and release pipeline including Xcode project configuration CocoaPods Swift Package Manager (SPM) Metro Hermes code generation signing Fastlane CI/CD and App Store phased releases.
• Define and enforce engineering standards across native iOS and React Native development including architecture patterns coding practices code reviews and testing frameworks.
• Develop reusable libraries shared components and design-system elements that work consistently across native and React Native interfaces.
• Implement automated and unit testing strategies using Jest React Native Testing Library Detox and XCTest.
• Collaborate with product managers UX/design teams backend engineers and QA teams to understand requirements and deliver high-quality mobile solutions.
• Evaluate native iOS versus React Native implementation approaches and advise stakeholders on appropriate technical trade-offs.
• Mentor junior and mid-level engineers including supporting native iOS developers in adopting React Native development practices.
• Drive architectural decisions manage technical debt maintain performance budgets and continuously improve code quality throughout the migration journey.

Qualifications :

Bachelors or masters degree in computer science Information Technology or a related field.

Remote Work :

No

Employment Type :

Full-time