React Native Developer

Position: Senior React Native Developer (4- 7 years)

Location: Remote (Company in Mumbai)

Company: Big Rattle Technologies Private Limited

Immediate Joiners only.

Summary:

We're looking for a seasoned React Native developer who has shipped production-grade mobile apps on both iOS and Android — ideally in the high-traffic, high-stakes world of e-commerce. You'll own the mobile experience end-to-end: architecture, performance, and flawless UX across devices.

Note: We are looking for a senior expert who has delivered multiple apps that are built from scratch and hosted on Apple Store/ Play Store i.e. e2e lifecycle.

KEY RESPONSIBILITIES

• Design and build scalable React Native apps for both iOS and Android from scratch to App Store / Play Store deployment.
• Architect complex e-commerce flows — product catalogues, cart, checkout, payment gateway integration, and order tracking.
• Optimize app performance: reduce TTI, maintain smooth 60fps animations, and manage memory on low-end devices.
• Integrate REST and GraphQL APIs; manage state with Redux Toolkit, Zustand, or React Query.
• Implement push notifications, deep linking, in-app navigation, and offline-first strategies.
• Write clean, well-tested code; maintain CI/CD pipelines using Fastlane, GitHub Actions, or Bitrise.
• Collaborate with designers, backend engineers, and product managers in Agile sprints.
• Conduct code reviews and mentor junior mobile developers.

Required Skills:

Core Mobile

▸ React Native CLI & Expo

▸ TypeScript

▸ React Navigation v6+

▸ iOS (Swift basics) & Android (Kotlin basics) ▸ Xcode & Android Studio

E-commerce & Integrations

▸ Product / Cart / Checkout flows

▸ Razorpay, Stripe, PayPal SDKs

▸ Wishlist, search UX, filters

▸ Order tracking & delivery status

▸ Push notifications & deep linking

State & Data

▸ Redux Toolkit / Zustand

▸ React Query / SWR

▸ REST & GraphQL APIs

▸ AsyncStorage / MMKV

▸ Firebase Realtime DB / Firestore

DevOps & Tooling

▸ Fastlane & GitHub Actions / Bitrise

▸ Jest (unit) & Detox (E2E)

▸ Firebase Crashlytics & Sentry

▸ Flipper / Reactotron

▸ App Store & Play Store deployments

Nice to Have skills: New Architecture · RN Web · AR try-on · RTL support · Shopify SDK · WCAG · Maps SDK

• React Native New Architecture (JSI / Fabric / TurboModules)
• React Native Web or monorepo setups (Nx, Turborepo)
• AR product try-on experiences (ARKit / ARCore)
• Shopify Storefront API or WooCommerce SDK experience
• Accessibility (WCAG mobile) implementation
• Live order-tracking maps (Google Maps / Mapbox)

Required Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.

Why should you join Big Rattle?

Big Rattle Technologies specializes in AI/ ML Products and Solutions as well as Mobile and Web Application Development. Our clients include Fortune 500 companies. Over the past 13 years, we have delivered multiple projects for international and Indian clients from various industries like FMCG, Banking and Finance, Automobiles, Ecommerce, etc. We also specialise in Product Development for our clients.

Big Rattle Technologies Private Limited is ISO 27001:2022 certified and CyberGRX certified.

What We Offer:

• Opportunity to work on diverse projects for Fortune 500 clients.
• Competitive salary and performance-based growth.
• Dynamic, collaborative, and growth-oriented work environment.
• Direct impact on product quality and client satisfaction.
• 5-day hybrid work week.
• Certification reimbursement.
• Healthcare coverage.

About

We were founded in the year 2015 with an entrepreneurial vision to bring a digital change in the B2B landscape of India. Now, with a team of 200+ people, bijnis is working towards transforming and digitizing the way manufacturing works in the unorganized Industries like Footwear, Apparel etc.

Key Competencies:

• 2+ years of experience in React-Native based app development is a must.
• Must have published at least 1 major React-Native app
• 2+ years of experience in building consumer facing Mobile Applications in React or React Native (Layouts, animations, etc.)

• Strong UX/UI design exposure and experience in making apps work intuitively and with pixel perfect interfaces.
• Good understanding of Design and Architecture Patterns
• Strong focus on app performance
• Sound knowledge of any type of mobile app development Native(android) or Hybrid.
• Good Experience of working in React Native and its supporting architectures.
• Proficient in JavaScript, CSS, HTML5
• Strong working experience with third-party dependencies and debugging dependency conflicts.
• Ability to quickly learn React Native with Redux.
• Ability to write clean code.
• Familiarity with version control management system (e.g. git)
• Knowledge of Scrum development and DevOps

• Good time management, interpersonal and communication skills, team player.

Roles/Responsibilities: 

• Work on React Native on the front end to develop Android/iOS Apps.
• Write JavaScript code in React native for the app logic. Write business logic using Reducers, Actions and Redux framework.
• Create Android/iOS specific UI for Mobile apps.
• Integrate with Native plugins or custom written plugins for specific platforms.
• Write Modular, organized and robust code.
• Write Unit tests for your code.

Requirements-

• Experience working with Flutter and Dart is required, as well as a thorough understanding of any other native or cross-platform mobile development frameworks.
• 1+ years of experience with Flutter and Firebase programming and debugging abilities are essential.
• A solid understanding of mobile architecture is required.
• It is preferable if you have experience designing PWA apps.
• Excellent knowledge of MongoDB, REST and JSON, SQLite or Couchbase Mobile, Social API integration, third-party libraries and APIs, and Core location APIs, as well as Google Material Design.
• Third-party API networking and integration
• Knowledge or expertise with any NoSQL database and tools like JIRA, Github, Bitbucket, Trello.

Job Summary

We are looking for a great JavaScript developer who is proficient with React.js and React Native. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.

Responsibilities and Duties

Responsibilities

• Developing new user-facing features using React.js
• Building reusable components and front-end libraries for future use
• Translating designs and wireframes into high-quality code
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers
• Need to have a working knowledge of React Native

Required Experience, Skills and Qualifications

Skills

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (such as Flux or Redux)
• Familiarity with newer specifications of EcmaScript
• Experience with data structure libraries (e.g., Immutable.js)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Familiarity with modern front-end build pipelines and tools
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimization
• Familiarity with code versioning tools  such as Git

Will be developing mobile and web applications using latest technology. Should be good in analysing requirements and translate into applications. Good in understanding application flows.

Tech Skills –

Mobile technology – Hybrid (Ionic / Cordova / capacitor / flutter), Native (Android / iOS) – Expert level – Should have completed 2-3 full sized complex projects with server component, use of cloud services, use of device native capabilities like camera, accelerometer etc.

HTML, CSS, Bootstrap, Java script – Intermediate level - Good understanding of concepts and should be able to realize application screens based on the UI provided by designers.

MEAN (MongoDB, Express, Angular/React, Node.js) stack – Beginner level - Should have understanding of concepts, good with basics

Job Title:Lead Mobile Developer

Work Location: Hyderabad

Experience:6 to 8 Years

Package:As Per market Standard

Notice Period:Immediate Joiners

Its a Full Time Opportunity with Our Client

Mandatory Skills:Mobile Developer,Ionic(Knowledge also fine)


Job Description:

Skills and Responsibilities
 Proficient in JavaScript / Typescript, Ionic 3-4, Angular, HTML/CSS.
 Any hybrid mobile Framework (PhoneGap, Cordova, ReactNative)
 Experience using web services (HTTP, REST, SOAP) using JSON.
 Cross-platform mobile app developers who have developed mobile apps with a familiarity of
Ionic/Flutter
 Understanding of MVC concepts, Design Patterns, User experience, Mobile Usability, Security
fundamentals
 Strong mobile UI design (multi-screen resolutions), coding, support and maintenance
 Experience with third-party libraries and APIs; Ability to handle dependencies and debugging
dependency conflicts
 Good knowledge on Data structures and Algorithms
 Experience in databases such as MongoDB/MySQL/MS SQL.
 Experience using Git/GitHub or any related source control environments in a distributed team
environment; Hands on experience Google Play/iTunes Services
 Build and publish applications in app stores
 Solid knowledge of mobile app development practices, along with mobile testing tools and
techniques
 Ability to handle Mobile app architecture, design and optimization, estimate timelines, able to
provide a solution to improve mobile app quality, understand emerging technologies, to
maximize development efficiency, standards and best practices to bring mobile app product to
the next level
 Good communication skills showing a capability to make clear and meaningful contributions to
white board design discussions and offer innovative solutions to complex problems, as well as
contribute insights from past experiences.

Experience:
 Minimum 4 years of hands on experience
 Write clean, manageable code and maintain proper documentation
 Excellent command over Data Structures and Algorithms
 Familiarity with continuous integration
 Strong problem solving and analytical skills
 Knowledge of benchmarking and optimization
 Security mindedness in development practices
 Collaborate with cross-functional teams to define, design and deliver new features
 Ability to work independently in small teams with excellent interpersonal communication skills
 Responsible and capable of meeting tight deadlines