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.

Job description

Job Title: Application Developer

Location: Gurugram Haryana India

Employment Type: Full-time (Immediate joiner preferred )

Experience : 2-5 years (In Android and iOS both)

About Aaizel Tech:

Aaizel Tech is a fast-growing technology company focused on building scalable web and mobile applications. We specialize in cross-platform development using React Native, delivering seamless user experiences across Android, iOS, and web.

Driven by innovation and efficiency, we create high-performance digital solutions that solve real-world problems. At Aaizel Tech, we foster a culture of ownership, creativity, and continuous learning, empowering developers to build impactful products.

Role Overview:

We are looking for an experienced App Developer with strong expertise in developing, deploying, and maintaining scalable applications. The candidate should have a proven track record in app development across platforms, hands-on technical proficiency, and the ability to lead and mentor development teams.

Key Responsibilities:

• Lead mobile application development (Android, iOS, and cross-platform).
• Architect, design, and deliver scalable and secure app solutions.
• Collaborate with product, design, and backend teams to deliver seamless apps.
• Write clean, efficient, and reusable code while ensuring code reviews and best practices.
• Integrate third-party APIs, payment gateways and authentication services.
• Manage deployments and app store releases.
• Mentor junior developers and conduct technical training sessions.
• Stay current with latest frameworks, tools, and certifications relevant to app development.

Required Skills, Qualifications and Experience:

● Educational Background: Bachelor’s/Master’s degree in Computer Science, Engineering, or related field.

● Experience: 2-5 years of hands-on mobile application development experience.

● Technical Skills:

• React Native, Native IOS & Andriod, React.js, AngularJS, Cordova, ExpressJS, ExtJS, Ionic, Java/J2EE, JMeter, JavaScript/jQuery, MongoDB/NoSQL DB, MySQL, PHP, PHP Yii, PL/SQL, React, Python, Dell Boomi, VB.NET.

Expertise in platforms/databases:

MySQL, MongoDB, Microsoft SQL, PostgreSQL, Redis, Docker.

Relevant Functional/Domain Expertise:

• API Integration & Authentication.
• Localisation of applications.
• Payment Gateway & SMS Gateway Integration.
• Digital Signature Integration, E-Sign, DigiLocker.
• Offline service capabilities, Single Sign-On (SSO).
• Interoperability and E-Commerce systems.

● Soft Skills:

○ Excellent problem-solving and analytical skills.

○ Strong communication skills with the ability to document and present technical information clearly.

○ Ability to work independently and as part of a multidisciplinary team.

What We Offer:

● Competitive salary aligned with industry standards.

● A collaborative and innovative work environment with access to advanced resources.

● Opportunities for professional growth and skill development.

● Engaging projects that challenge your technical expertise.

Your Key Responsibilities

You'll be taking full ownership of end-to-end app development along with

maintaining our accounts on Play Stores and App Store.

Defining the architecture for the App and maintaining it with industry standards.

Improving app performance along with an amazing customer experience.

Working closely with the product team to create a useful application for the

customers.

Prototyping new features and exploring technological solutions to deliver an

amazing experience.

Leverage native APIs for deep integrations.

Maintain code and write automated tests to ensure the product is of the highest

quality.

Recommended skills

3+ years of experience of working with React Native.

Experience with Native Android/IOS native is a plus.

Expertise in Live streaming from mobile app is a plus.

Experience with automated testing suites.

Knowledge about Offline Storage, REST APIs, and document request model.

Experience of working on products similar to Instagram, Moz, Hotstar, Mxtaka,

Roposo, Leherapp, Dailyhunt, etc is an advantage.

Job Description: 

We are seeking an experienced React Native Developer with over 4 years of experience to join our dynamic team. The ideal candidate will have a strong background in mobile development, particularly with React Native, and a passion for creating high-quality, scalable applications. You will play a key role in the development and maintenance of our cross-platform mobile applications, ensuring seamless integration with our web solutions and a superior user experience.

Key Responsibilities:

• Mobile Development: Develop, maintain, and optimize React Native applications for both iOS and Android platforms.

• Integration: Work closely with back-end developers to integrate mobile applications with APIs and other services.

• Collaboration: Collaborate with cross-functional teams, including UI/UX designers, product managers, and other developers, to deliver a cohesive product experience.

• Performance Optimization: Ensure the performance, quality, and responsiveness of applications by identifying bottlenecks and implementing solutions.

• Code Reviews: Conduct code reviews and ensure adherence to coding standards, best practices, and company guidelines.

• Testing: Write and maintain unit and integration tests to ensure the reliability and robustness of the application.

• Documentation: Create and maintain technical documentation for code and APIs.

• Stay Updated: Keep up with the latest industry trends and technologies, and continuously improve the development process.

Qualifications:

       •  Education: Bachelor's degree in Computer Science, Software Engineering, or a related field        (or equivalent work experience) 

• Experience: 4+ years of experience in mobile development, with at least 3 years of hands-on experience with React Native.

• Skills: Proficiency in JavaScript and strong experience with React Native, including working with state management libraries (such as Redux or MobX) and navigation libraries.

• Platform Knowledge: Solid understanding of mobile development for both iOS and Android, including platform-specific considerations.

• Performance: Experience with performance optimization techniques for mobile applications.

• Version Control: Familiarity with version control systems (e.g., Git).

• Collaboration: Ability to work effectively in a team environment and communicate technical concepts to non-technical stakeholders.

• Problem-Solving: Strong problem-solving skills and attention to detail.

Preferred Skills:

• TypeScript: Experience with TypeScript for type safety and better code maintainability.

• UI/UX Understanding: Familiarity with UI/UX design principles and ability to collaborate effectively with designers.

• Back-End Knowledge: Basic understanding of back-end technologies and APIs to facilitate seamless integration.

• Testing Frameworks: Experience with testing frameworks such as Jest or Mocha.

• CI/CD: Knowledge of continuous integration and continuous deployment (CI/CD) pipelines.

• App Store Deployment: Experience with deploying applications to the Apple App Store and Google Play Store

TrueFan is a celebrity-fan experience platform that enables fans to connect with their favorite celebrities. The business runs on a mobile application where fans compete in an online quiz contest designed on the life of their favorite celebrity (their movies, trivia, facts, etc.) and the winners get a personalized video message from them.

We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.

Responsibilities

• Designing, deploying, and managing web and mobile applications that can run on multiple platforms.
• Utilizing React Native to design and develop UI components for web and mobile apps based on JavaScript.
• Writing effective, scalable, and reusable JavaScript code can help create interchangeable front-end modules.
• Improving front-end performance by diagnosing and fixing all system errors and bugs.
• Collaborating with design, development, and customer service teams to properly understand client requirements and build top-notch apps within the stipulated time and budget.
• Using other JavaScript libraries (like “Redux”) to make asynchronous API calls and enhance website/mobile app performance.
• Creating plans to transition React-based web and mobile apps to React Native.

Requirements

• Possess at least 3 years of hands-on experience in React Native.
• Should have a good working knowledge of HTML and CSS.
• You are well-versed in all aspects of JavaScript.
• Experience in leading a team is preferred.
• Should have in-depth knowledge of UI/UX designs and wireframes.
• You possess an expert-level understanding of React.js and its fundamentals. 
• You are familiar with Gradle, XCode, and other native build tools.
• You deeply understand REST APIs, offline storage, and the document request model.
• You have strong problem-solving and critical-thinking abilities.

Intro:
Empala is an exciting new fintech launching in Singapore. Empala aims to help workers in the SEA region get access to their pay & helping them save for unexpected expenses. 

Job Description:

As fullstack developer at Empala you will be building and shaping our product. Our current offerings are centered around a React Native app (iOS & Android) with a serverless backend.

Empala is a flat and young organization, meaning every hand has a lasting impact on our product and our culture. You will report directly to the CTO and will in general be working closely with the founders. The job is of course mostly focused on building and maintaining our products, but in a small team you will have to wear a lot of hats, you could get involved in sales, marketing or anything in between, ideally you will see this as a positive thing and a chance to learn more about our users/customers/new areas of work. 

Benefits: 

At Empala we offer a competitive package that will be a mix of salary and employee stock options. We pay ourselves on demand meaning you can get paid for the work you have done when you wish it, be it daily, weekly, monthly or a combination of above. 

Requirements: 

The following requirements are a guideline, if you are missing some points but you are confident that you can master them in a reasonable amount of time there might still be a place for you at Empala. 

Preferred

• React Native 
• Backend tools and frameworks (express or any other, non JS is OK as well) 
• Cloud providers, AWS preferred 
• Git

Other requirements 

• Fluent in english 
• Proactive approach to problem solving 
• A hunger to get stuff done 

Nice to have: 

• Experience with Redux, GraphQL, Typescript, AWS Amplify
• Experience with SCRUM and/or TDD