Job Description

We're seeking a Senior React Native Developer with 10+ years of experience building secure, high-performance cross-platform mobile apps. The ideal candidate is expert in React Native (JavaScript/TypeScript) with working knowledge of native Android (Kotlin/Java) and/or iOS (Swift/Objective-C) for bridging and platform-specific modules. Strong emphasis on mobile security, AI-native development, and the full app lifecycle.

Key Responsibilities

• Lead design, development, and deployment of secure React Native apps across iOS and Android; contribute to native modules as needed.
• Architect scalable, maintainable, high-performance apps using React Native, TypeScript, and native bridging where applicable.
• Implement secure coding practices, encryption, secure storage, authentication, and secure networking; conduct security audits and fix vulnerabilities.
• Use libraries such as React Navigation, Redux/Zustand/Context API, Axios/Fetch, Firebase, and native SDKs (Jetpack Compose, CocoaPods); securely integrate third-party APIs/SDKs.
• Leverage AI coding assistants (Claude Code, GitHub Copilot, etc.) to accelerate development, code review, and test generation—while ensuring quality and security of AI-generated code.
• Debug and optimize for performance, memory, battery, and security; perform code reviews; mentor junior developers.
• Collaborate with product, design, backend, and QA teams; contribute to planning and estimation.
• Ensure compliance with App Store/Google Play policies and mobile security frameworks.

Skills & Qualifications

Experience: 8+ years in React Native development; apps published on Google Play and App Store; experience with native modules (Kotlin/Java and/or Swift/Objective-C).

Languages: Expert in JavaScript/TypeScript; working knowledge of Kotlin/Java and/or Swift/Objective-C.

Frameworks: React Native (including New Architecture — Fabric/TurboModules), state management (Redux/Zustand/MobX), navigation, REST/GraphQL integration, and native platform frameworks (Jetpack Compose/MVVM, SwiftUI/UIKit).

Security: Encryption and secure storage (Keychain, Keystore, encrypted AsyncStorage/MMKV), data privacy compliance, secure networking, familiarity with OWASP MSTG.

AI-Native Development: Hands-on daily use of AI coding assistants (Claude Code, GitHub Copilot) for code generation, refactoring, debugging, and testing; skilled at prompting AI agents for scaffolding and integrations; understands risks of AI-generated code (insecure suggestions, hallucinated APIs, IP concerns) and applies mandatory human review.

Tools: Git, Azure DevOps, CI/CD (Fastlane, App Center, Bitrise).

Architecture: MVVM, Clean Architecture, common design patterns (Factory, Adapter, Observer) applied consistently across cross-platform and native code.

Other: Strong UI/UX collaboration skills; full app lifecycle expertise (build, submit, deploy, monitor, maintain); performance profiling; excellent communication and cross-functional collaboration.

Preferred Qualifications

• Advanced security: code obfuscation, reverse-engineering prevention, SSL pinning, API hardening
• Cloud experience (Azure, Firebase, AWS) for secure mobile-backend communication
• Experience customizing AI agent workflows (Claude Code commands/skills, Copilot Workspace, MCP integrations)
• Agile experience (Scrum/Kanban); knowledge of analytics, unit/A-B testing, and monetization strategies
• Bachelor's degree in computer science or equivalent

At Zensar, we’re “experience-led everything” We are committed to conceptualizing, designing, engineering, marketing, and managing digital solutions and experiences for over 130 leading enterprises. We are a company driven by a bold purpose: Together, we shape experiences for better futures Whether for our clients, our people, or the world around us, this belief powers everything we do. At the heart of our culture is ONE with Client - a set of four core values that reflect who we are and how we work: One Zensar, Nurturing, Empowering, and Client Focus

Part of the $4.8 billion RPG Group, we’re a community of 10,000+ innovators across 30+ global locations, including Milpitas, Seattle, Princeton, Cape Town, London, Zurich, Singapore, and Mexico City. Explore Life at Zensar and join us to Grow. Own. Achieve. Learn. to be the best version of yourself.

We believe the best work happens when individuality is celebrated, growth is encouraged, and well-being is prioritized. We are an equal employment opportunity (EEO) and affirmative action employer, committed to creating an inclusive workplace. All qualified applicants will be considered without regard to race, creed, color, ancestry, religion, sex, national origin, citizenship, age, sexual orientation, gender identity, disability, marital status, family medical leave status, or protected veteran status.