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Ambition Hong Kong

L3/L4 Front End Developer

Ambition Hong Kong
Posted 3 days ago Hybrid Job Contract HKD45000 - HKD60000 per month

L3/L4 Front End Developer

Ambition Hong Kong
Seeking a Cross-Platform Frontend Engineer expert in React Native (TypeScript) and React JS to build high-performance mobile and web applications. You will architect data flows with GraphQL APIs, manage offline caching, optimize frame rates, and maintain CI/CD pipelines (Xcode, Android Studio, Webpack/Vite). Requires strong testing experience (Jest, Detox, Cypress) and end-to-end client ownership

Core Responsibilities

  • Cross-Platform & Web Engineering: Design, build, and maintain scalable mobile applications using React Native with TypeScript and responsive web applications using React JS.
  • API & Data Integration: Architect robust data flows by consuming and optimizing GraphQL APIs, managing client-side caching, real-time data sync, and asynchronous state.
  • Architecture & UI/UX: Deliver smooth, accessible, and native-feeling user experiences across iOS, Android, and web platforms, adhering to high financial-grade security and design standards.
  • Quality & Automation: Write clean, testable code with strong unit, integration, and E2E test coverage (e.g., Jest, Detox, Cypress) and manage automated mobile/web CI/CD pipelines.
  • Production Reliability & Performance: Monitor client-side performance, reduce bundle sizes, ensure smooth frame rates on mobile, resolve operational incidents, and ensure high reliability.

Key Qualifications & Experience

  • Technical Proficiency: Deep expertise in React Native with TypeScript, React JS, and modern state management patterns.
  • Data & API Design: Proven production experience integrating and querying complex GraphQL APIs, managing fragments, caching layers, and handling offline-first mobile states.
  • Mobile & Web Ecosystem: Hands-on experience with native mobile build tooling (Xcode, Android Studio, App Store/Google Play deployment pipelines) alongside modern web tooling (Vite, Webpack).
  • Quality & DevOps: Familiarity with automated testing frameworks, continuous delivery pipelines, and cloud environments (e.g., AWS).
  • Modern Tooling: Familiarity with AI-assisted software development workflows.
  • Soft Skills & Ownership: Strong cross-functional collaboration with backend engineers, UX designers, and product managers; active communication; and end-to-end ownership of client applications.
job_description_image
Job ID  561876
ABOUT COMPANY
Hong Kong
HR & Recruitment
Ambition is a leading global recruitment and executive search business operating across key international cities. We access hard-to-find, high-calibre...
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