Android 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.

Urgently Hiring Android developer either in Android java (android studio) or React native Android app developer or Flutter Android app developer.

Job Location : Indore ( work from Office)

Experience needed : minimum 6 months needed

******

1) Android developer must have expertise in designing as well as development on any technology( either on Android java or React-native or Flutter)

2) Must have expertise in implementing api ( json parsing )

3) Must have done some fully dynamic Android app before.

4) Can work individually or in a team , immediate joiner

*****

• Design and Build Advanced Applications for the Android Platform
• Collaborate with Cross-Functional Teams to Define, Design and Ship New Features
• Troubleshoot and Fix Bugs in New and Existing Applications
• Continuously Discover, Evaluate and Implement New Development Tools
• Work With Outside Data Sources and APIs
• Knowledge of Android SDK, Java programming, Kotlin, Jetpack Compose, Realm
• Version Control, Clean Architecture

We are looking for an experienced Android developer for the development and maintenance of an Android app aimed at drone pilots to execute drone flights. The application will have to be intuitive, robust and work offline.

You will be working along-side other mobile and web developers to develop a full-stack drone flight solution that enables drone service providers, pilots, and enterprises to execute fast, accurate, and seamless drone missions. You will work with cross functional product development team and will be responsible to design and build drone applications.

Qualification:

• Tech/M.tech/BCA/MCA Degree in computer Science/IT/Electronics.

Duties & Responsibilities:

• Design, build and maintain efficient, reusable, and reliable android code.

• Collaborate with cross-functional teams 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

Skills:

• Hands-on experience in developing Android apps

• Experience with offline storage, threading and performing benchmarking and tuning.
• Well versed with the latest android jetpack libraries (AndroidX, ViewModels etc)
• Understanding of Android design principles and interface guidelines
• Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes.
• Proficient understanding of code versioning tools like Git
• Work with outside data sources and APIs (Familiar with frameworks like Retrofit, Volley, OkHTTP, etc.)
• Familiarity with cloud message APIs and push notifications.
• Good knowledge in programming concepts OOPs, design & coding patterns
• Experience in writing & executing UI Unit Tests for robustness, usability, and reliability.
• Experience with Google Play console and publishing apps on the play store

Soft Skills:

• Understanding of database structure, algorithms, and processes
• Familiar with database management and design
• Good communication and management skills
• Ability to adapt to new technology, concept, approaches, and environment faster
• Problem-solving and analytical skills
• Must have a learning attitude and improvement mindset
• Knowledge of non-functional aspects of the app/product such as security, automation, testing, performance, optimization
• Leadership and resource management skills

Job Responsibilities:

- Design and develop high-volume, low-latency applications for mission-critical systems, delivering high-availability and performance.

- Contribute in all phases of the development lifecycle: concept, design, build, deploy, test, release to app stores and support.

- Diagnose performance issues, fix bugs (including crashes and ANRs) to increase the functionality of the application.

- Write well designed, testable, efficient code.

- Ensure designs are in compliance with specifications

- Prepare and produce releases of software components

- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review

Desired Profile :

B.Sc. (CS or IT) + MCA/ BCA + MCA/ B.Tech. /B.E. (CS or IT) .

Experience required- 1 - 2 years

- Subject Proficient in Java/Kotlin programming

- Knowledge and experience in Flutter Framework and DART programming

- Hands on experience in using RESTful APIs

- Hands on experience in designing and developing micro-services architecture and containers

- Object oriented analysis, UML and design using common design patterns.

- Hands on experience in development IDE Android Studio, Android SDK, Firebase Test Lab

- Experience with offline storage, threading, and performance tuning

- Familiarity with push notifications

- Familiarity with IOS integration with Flutter

- Experience using GitHub or similar environment

- Complete understanding of SDLC

- Experience with Agile development

- Experience with Material Design and Android UI design principles, patterns and best practices

- Good knowledge of adding third-party libraries for Eg. Twilio

- Ability to understand business requirements and translate them into technical requirements

1. Bachelor's degree in Computer Science, Engineering or related field, or equivalent training, fellowship, or work experience
2. 2+ years of practical experience in Native Android Development
3. 2+ years of experience using Kotlin/Java
4. Experience developing highly performant code and view layouts and the ability to diagnose performance bottlenecks
5. Designing applications with latest frameworks and architecture such as MVVM, etc.
6. An excellent understanding of best practices for concurrency and threading is a big plus
7. A disciplined approach to development, testing, documentation and code structure in a team environment
8. A constant desire to improve, learn more and take things higher
9. Having worked with the Realm database and dagger is a big plus.