React Native

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:

We are looking for an Android 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.

Key Responsibilities

• Design and build advanced applications for the Android platform
• Collaborate with cross-functional teams to define, design, and ship new features.
• Work with outside data sources and API's
• 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.

Requirements

• B.Tech Computer Science, Engineering or a related subject
• 4+ years of software development experience
• Have published at least one original Android app
• Experience with Android SDK
• Should have minimum 1 year of experience in React Native 
• Experience working with remote data via REST and JSON
• 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.

Looking for React Native 6 to 8 years of experience

• Has built at least 2 React Native Apps ( Concept to Design to Dev to Production to

Refine ) or atleast 1 App from Scratch individually.

• Has Managed a team of atleast 3 developers to build mobile apps/modules.

• Understand mobile app design principle

• Can debug app and troubleshoot issues

• Can write testable code / module

• Has worked on app performance improvement

• Has taken security considerationwhile building app(s)

• Added advantage if has worked on Firebase,FCM and Redux.

We are seeking a highly skilled and experienced Senior Flutter Consultant to join our team. As a Senior Flutter Consultant, you will play a critical role in developing innovative and user-friendly mobile applications for our clients. You will collaborate with cross-functional teams, including designers, developers, and project managers, to deliver high-quality solutions that meet our clients' business objectives.

Responsibilities:

1. Develop and maintain Flutter applications for iOS and Android platforms.
2. Collaborate with designers and developers to translate wireframes and UI designs into fully functional mobile applications.
3. Provide technical expertise and guidance to the development team regarding best practices for Flutter application development.
4. Write clean, efficient, and maintainable code that adheres to industry standards and project requirements.
5. Conduct code reviews and provide constructive feedback to ensure code quality and performance optimization.
6. Troubleshoot and debug issues, identify bottlenecks, and propose effective solutions to technical challenges.
7. Stay updated with the latest trends and advancements in the Flutter framework and mobile app development.
8. Mentor and coach junior developers, sharing knowledge and promoting a culture of continuous learning and improvement.
9. Collaborate with project managers and clients to understand their requirements, provide technical insights, and deliver solutions within the agreed timelines.
10. Participate in Agile/Scrum development processes, including sprint planning, backlog grooming, and daily stand-ups.

Requirements:

1. Bachelor's degree in Computer Science, Engineering, or a related field.
2. Minimum 3 years of professional experience in mobile application development, with at least 2 years of hands-on experience with Flutter.
3. Strong proficiency in Dart programming language and Flutter framework.
4. Extensive experience in building and deploying mobile applications on both iOS and Android platforms.
5. Solid understanding of software development principles, including object-oriented programming, design patterns, and architectural best practices.
6. Experience with RESTful APIs, third-party integrations, and asynchronous programming.
7. Knowledge of version control systems (e.g., Git) and experience with collaborative development workflows (e.g., GitFlow).
8. Familiarity with mobile app testing frameworks and tools, such as Flutter testing framework, XCTest, and Espresso.
9. Excellent problem-solving and debugging skills, with the ability to analyze complex issues and propose effective solutions.
10. Strong communication and interpersonal skills, with the ability to effectively collaborate with cross-functional teams and clients.
11. Experience working in an Agile/Scrum development environment.
12. Proven ability to meet deadlines and deliver high-quality work in a fast-paced, dynamic environment.

Preferred Qualifications:

1. Experience with hybrid app development frameworks (e.g., React Native) is a plus.
2. Knowledge of backend technologies, such as Node.js or Firebase, for building APIs and integrating with databases.
3. Contributions to open-source projects or personal Flutter app projects.
4. Certifications related to mobile app development or Flutter.

Join our team and contribute to the development of cutting-edge mobile applications using Flutter. As a Senior Flutter Consultant, you will have the opportunity to work on diverse projects, leverage your expertise, and make a significant impact on our clients' businesses.

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 Java Script 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.

Navtech (Navaratan Technologies) 

Hyderabad, India 

React Native Developer: 

Navtech is a premier IT software and Services provider. Navtech’s mission is to increase public cloud adoption and build cloud-first solutions that become trendsetting platforms of the future. We have been recognized as the Best Cloud Service Provider at GoodFirms for ensuring good results with quality services. Here, we strive to innovate and push technology and service boundaries to provide best-in-class technology solutions to our clients at scale. We deliver to our clients globally from our state-of-the-art design and development centers in the US, Hyderabad, and Pune. 

We’re a fast-growing company with clients in the United States, UK, and Europe. You will join a team of talented developers, quality engineers, product managers whose mission is to impact above 100 million people across the world with technological services by the year 2030. 

Navtech is looking for a React Native Developer to produce scalable software solutions. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment. 

As 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. You should also be a team player with a knack for visual design and utility. If you’re also familiar with Agile methodologies, we’d like to meet you. 

Working as a React Native Developer at Navtech, you will: 

• Perform all phases of software engineering including requirements analysis, application design, architecture design, code development and testing. 
• Build pixel-perfect, buttery smooth UIs across platforms. 
• Leverage native APIs for deep integrations with both platforms. 

• Diagnose and fix bugs and performance bottlenecks for performance that feels native. 
• Reach out to the open source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things. 
• Maintain code and write automated tests to ensure the product is of the highest quality. 
• Participate in an Agile/Scrum methodology to deliver high-quality software releases every 2 weeks through Sprints. 
• Review code and provide feedback related to best practices and improving performance. 

• Troubleshoot production support issues post-deployment and come up with solutions as required. 

You’ll be rewarded and recognized for your performance in an environment that will challenge you and give you clear direction on what it takes to succeed in your role as well as provide development for other roles you may be interested in. 

Who Are We Looking For Exactly? 

• A React Native developer with 1+yrs of experience with expertise on multiple phases of a project lifecycle from concept development to solutions design, implementation, optimization and support. 
• Good Experience with React JS, React Native, JavaScript including DOM Manipulation and JavaScript object model. 
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux. 
• Good understanding of Object-oriented programming. 

• Ability to write well-documented, clean Javascript code. 
• Rock solid at working with third-party dependencies and debugging dependency conflicts. 
• Familiarity with native build tools, like XCode, Gradle, Android Studio or IntelliJ. 
• Understanding of REST APIs, the document request model, and offline storage. 
• Experience with Native Mobile app releases on App store and google play store. (A plus) 

• Experience with cloud technologies like AWS is also a plus. 
• Must have excellent communication and interpersonal skills. 
• Ability to operate in a systematic and logical manner. 
• Should have a Master’s Degree /Bachelors (BS) in computer science, Software Engineering, IT, Technology Management or related degrees and throughout education in English medium.  

Why Navtech? 

• Performance review and Appraisal Twice a year. 
• Competitive pay package with additional bonus & benefits. 
• Work with US, UK & Europe based industry renowned clients for exponential technical growth.  
• Medical Insurance cover for self & family. 
• Work with a culturally diverse team from different geographies. 

Job description:

• Thorough understanding of React Native and its core principles- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Experience in React Js, Javascript, Ruby on Rails (preferred)- Experience with popular React workflows (such as Flux or Redux)
• Familiarity with newer specifications of ECMAScript (ES6 & ES5 )- Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs- Experience with relational databases (PostgreSQL preferred)
• Working knowledge of git for version control- Understanding of Unix tools