React Native Developer

About the Role

We are looking for a Senior Android Engineer with deep React Native expertise to build and own the trading

experience on Android — real-time data, interactive charting, fluid interactions, and rock-solid performance. What We’re Looking For

You have shipped production React Native apps that handle real-time data streams, complex UI states, and

performance-sensitive rendering. You understand the Android platform deeply — native modules, bridge

performance, and platform-specific behaviour. Ideally, you have worked on trading, fintech, or data-intensive

mobile products. You take ownership of your features end-to-end, care about code quality, and are comfortable

driving technical decisions independently. What You’ll Do

• Own the mobile trading experience on Android — architecture, performance, and end-to-end quality. • Build and optimize real-time data rendering — WebSocket lifecycle management, efficient list rendering, and minimal re-renders for streaming data. • Integrate complex WebView-based components with bidirectional JavaScript bridge communication. • Collaborate with product and design to deliver polished, intuitive interfaces for a financial product where

trust and clarity are paramount. • Define mobile engineering standards — component architecture, state management patterns, testing

strategy, and performance benchmarks. • Drive code reviews, mentor team members, and champion best practices across the mobile team. • Participate in stabilization and release cycles — profiling, device matrix testing, and regression analysis. Must-Have

• 4+ years React Native experience with production apps on Google Play Store. • Strong TypeScript skills and deep understanding of React Native internals — bridge, native modules, and

performance optimization. • Experience with real-time data handling — WebSockets, efficient UI updates for streaming data, and

state synchronization. • Experience integrating WebView-based components with JS bridge communication. • Proficiency with state management at scale (Redux, Zustand, or MobX).

• Experience with push notifications (FCM), deep linking, and complex navigation patterns. • Strong debugging skills — Flipper, React DevTools, native crash analysis, and performance profiling. Nice-to-Have

• Prior experience building trading, brokerage, or fintech mobile apps. • Experience with charting library integration in mobile apps. • Knowledge of server-driven UI (SDUI) patterns. • Experience with feature flags, A/B testing frameworks, and app modularization. • Familiarity with native Android development (Kotlin) for bridge modules. Tech Stack

Framework React Native

Language TypeScript / JavaScript

State Management Redux / Zustand

Real-time WebSocket, SSE

Charting Charting library via WebView bridge

Testing Jest, Detox (E2E), device matrix testing (Android 10+)

• Building user-friendly IOS and Android apps on React Native Platfrom.
• proficient in Coding debugging.
• Collaborate with cross - functional terms to define and design new features .
• Work on bug fixing and improving applications performance.
• Hands on experience in optimizing code for application performance.
• Ability to deliver projects on time by satisfying clients needs .
• Wiriting modular , resuable, maintainable , well documented and fully tested code.

What does the core role include?

• Designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance
• Designing stateless components in React Native
• Contributing in all phases of the development lifecycle
• Working with the developers to create and maintain a robust framework to support the apps
• Working with the developers to build the interface with a focus on usability features

What else can you expect in the role?

• Prepare and produce releases of software components
• Optimizing performance for the apps
• Problem-solving skills, analytical mind, and positive attitude
• Ability to think from end users perspective and focused on improving the overall product experience.
• Deliver across the entire app life cycle concept, design, build, deploy, test, release to app stores and support

What can fetch you brownie points?

• Hands on experience with React Native is required
• Hands-on experience in React Native APIs, ReactJS, Javascript, ECMAScript (OOJS) and JSX.
• Strong understanding of JavaScript ecosystem
• Hands on experience on Android in creating Hybrid / Native applications
• Demonstrable UI/UX experience on a large-scale app.
• Thorough understanding of React Native development tools like IDEs (Nuclide, Atom, Sublime Text, or Visual
• Good knowledge of JS frameworks like ReactJS is a plus.
• Desired Skills and Experience
• Hybrid Apps,React Native, Native iOS and Android Architecture understanding

We are looking for an iOS application developer who possesses a passion for pushing mobile technologies to the limits and will work with our team of talented engineers to design and build the next generation of our mobile applications.

MUST BE ABLE TO WORK AT OUR OFFICE IN : Sec. 63, Noida, UP 201301

Responsibilities:

• Design and build advanced applications for the iOS platform
• Collaborate with cross-functional teams to define, design, and ship new features.
• Unit-test code for robustness, including edge cases, usability, and general reliability.
• Work on bug fixing and improving application performance.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Very good experience with Objective-C and iOS SDK
• Good working knowledge in Cocoa Touch
• Experience with memory management and caching mechanisms specific to mobile devices.
• Experience working with iOS frameworks such as Core Data, Core Animation, Core Graphics, and Core Text.
• Experience in Payment gateway integration in mobile apps.
• A portfolio of iOS in the app store is a plus.
• Git & Gerrit.
• UI & UX experience.
• Experience in Swift4 and above version of Swift.
• REST API association, Locations, and Map API.

Required Candidate profile

• A minimum of 3 years of experience in iOS app design and development
• Experience working with iOS frameworks such as Core Data, Core Animation, Core Graphics and
  Core Text
• Experience in imaging/pdf manipulation sdk will be preferred.
• Working experience with PDFTron sdk
• Experience with third-party libraries and APIs
• Working knowledge of the general mobile landscape, architectures, trends, and emerging
  technologies
• Solid understanding of the full mobile development life cycle

Desired skills

• Knowledge of UI development (UI Kit, App Life Cycle, View Controller life cycle, Storyboards, Auto layout)
• Basic and Advanced concepts of Swift (for e.g., generics, KVO, etc.)
• Minimum 1 year experience in Swift.
• Implementation details of complex features (e.g., push notifications, Analytics integration, accessibility, features of health kit, deep-linking, etc.)
• MVC, MVVM, VIPER design patterns and other patterns used in iOS
• Apple UI guidelines, Guidelines/process to submit app to the App Store

Personal attributes

• Good communication skills.

• Developing, releasing, and maintaining native Android Applications and oversee mobile application development efforts.
• Deliver across the entire app life cycle, design, build, deploy, test, release to app stores and support.
• Extensive experience in developing mobile apps using Android SDK with proficiency in Core Java and design patterns.
• Ensure the performance, quality, and responsiveness of the application.
• Work directly with the product manager to conceptualize, build, test and release products.
• Collaborate with a team to define, design, and ship new features.
• Work on bug fixing and improving application performance.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Identify and correct bottlenecks and fix bugs in order to maintain code quality.
• Show leadership and focus on the completion of projects.
• Optimize performance for the app and keep up to date on the latest industry trends in mobile technologies.
• Working within a SCRUM team.

REQUIRED SKILLSETS

• Relevant industry experience of 2+ years.
• Great understanding of Android Development SDK.
• Understanding of Google's Material Design principles and interface guidelines.
• Expertise in Core Java with solid OOD principles and design patterns.
• Experience with Git, Retrofit, JetPack, RxJAVA 2, Kotlin, basic knowledge of NDK.
• Experience with development in Kotlin and Google Activity Tracker applications is a plus.
• Knowledge of Databases like SQL Lite, Realm, Room, etc.
  Conversant with JSON API (i.e. RESTful APIs).
• Should have experience in writing Android Studio Test Cases.
• Experience with SaaS platforms for mobile development like Analytics, Push Notifications, Cloud Storage, Ad Networks, etc.
• Hands-on experience with Android's debugging, unit testing, memory, and performance optimization tools.