
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 Big Rattle Technologies
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We are reviewing on a rolling basis. Successful candidates will receive an email invitation to online interviews. We’re excited to hear your story.
•Strong in Android, Kotlin, and MVVM architectural pattern
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•Experience in Dependency Injection - Hilt, Dagger2
•Good knowledge in screen navigation using Navigation APIs
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● Design and build advanced applications for the Android platform working individually and
in a team
● Work as per the defined project priorities and project schedules to complete the
assigned projects within allotted timelines
● Interact with the cross-functional team for the day to day development tasks and hurdles
● Adhere to agile development methodologies
● Maintain the quality and security of the assigned development tasks by applying the best
design and development guidelines as defined in the project
Experience you MUST have:
● Extensive experience in Android SDK and Kotlin programming, Advanced Apps
Development on Android phones/tablets
● Android GUI Camera, GPS API, Maps API, Services, and SQLite database
Kotlin Programming
● Android IDE
● Using client apps for version control systems like SVN, Git, etc
● Code review tools/applications like Gerrit, code collaborator, JIRA
● Web services integration (SOAP, REST, JSON, XML)
● Working with third-party libraries, APIs and on projects run as per Agile
Methodology
● Good knowledge in socket programming, device communication, Design
patterns, and writing unit test cases (This is a plus)
● Knowledge in In-App purchase, Push Notifications and publishing apps on Google
PlayStore
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● Experience Level: Min 2+ years
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● Familiarity with native build tools, like XCode, Gradle {Android Studio, IntelliJ}
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• Strong command of UIKit, Swift, Xcode, and other Apple developer tools
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Company Profile |
Flora2000 was established in 1999 by Mr. Rehan Yar Khan (Founder & CEO) as an online floral & gift retailer and extended its delivery services across the globe. It is the leader and pioneer of the concept of flowers and gifts in over 190 countries worldwide. Flora2000 passionately strives to be the largest premium-gifting leader with flowers, gifts, cakes being the core verticals driven by people first approach and innovation in all spheres of business. We strive to give our customers a wow experience through continuous innovation of premium products and services by using world class technology and processes. From exquisite bouquets to gift baskets to flowering planters, you are sure to find the perfect expression of your message in our online floral boutique.
We have offices in Mumbai, Europe & UAE. Please visit Flora2000.com for more information |
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The Role |
We are looking for an Android developer responsible for the development and maintenance of Hybrid applications aimed at a vast number of diverse devices. The primary focus will be the development of Android applications and their integration with back-end services. We expect the Developer will have a broad experience at Flora2000 and will play a unique role in the organization. · Write “clean”, well-designed code · Develop and deploy new features to facilitate related procedures and tools if necessary · Design and build advanced applications for the Android platform · Identify and correct bottlenecks and fix bugs · Help maintain code quality, organization, and automatization · Ensure smooth operations of web processes and infrastructure · Work on bug fixing and improving application performance. · Contribute in all phases of the development lifecycle · Follow industry best practices Create regular and ad hoc reports. |
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Requirements: Attributes, Experience |
· 4 to 7 Yrs experience. · Strong knowledge of Restful Apis · Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes · Good grasp of data structures and algorithms. · Familiarity with RESTful APIs to connect Android applications to back-end services · Strong knowledge of Android UI design principles, patterns, and best practices · Familiarity with cloud message APIs and push notifications · Detail-oriented, proactive and self-motivated. · Team player with ability to work effectively. |
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It all starts with an open culture and working environment with lots of transparency and freedom. Our bosses don’t sit in cabins, no one does. Our diaries are open so everyone can see what the other is doing… |
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Academics |
B.Tech / B.E. |
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Position Reports to |
Technology Head |










