Hybrid App 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 Responsibilities

• At least 1-3 Years of Mobile App Development experience in React Native Framework.
• Experience on web service integration (SOAP, REST, JSON, XML).
• Worked on Social API integration, Core location APIs, Payment gateway integration, Google Maps, Webviews, Push Notification Service.
• Must have strong experience in Javascript, React JS.
• Strong Knowledge of SQLite, MySQL, Firebase or similar databases.
• Strong experience in sensors like accelerometer & gyroscope and detecting / correcting memory usage issues.
• Knowledge of HTML5 & CSS3.

Required Skills

• Develop and enhance Mobile Application using HTML5, jQuery Mobile, JavaScript and CSS3.
• Define technical design for mobile application ecosystem (enterprise integration working with REST services, Vendor Mobile APIS, Push notifications, etc.)
• Integrate available plugins to utilize native phone APIs to handle push notifications, geolocation and payment processing (Google Wallet, Apple Pay, etc.)
• Potentially dig down into the native layer to develop custom plugins to achieve desired functionality if not supported by the chosen framework.
• Provide a creative source of ideas/solutions to address problems - strategic and tactical.
• Contribute to the improvement of the efficiency of through scripts, tool code, component development or methodology enhancement.
• Develops, maintains, monitors and tunes performance of the app.
• Collaborate with developers, project managers, business analysts and business users in conceptualizing, estimating and developing new software applications and enhancements.

Desired Skills

• 1-3  years of experience into React Native.
• Published 2 or more apps in the Google Play Store and Apple iTunes store.

Candidates who can join immediately would be preferred.

Note: If you are willing to apply on the above post kindly add your live projects Play Store/ App Store links in the resume.

• Design, build and maintain efficient, reusable, and reliable code
• Development of UI elements and Integration with APIs
• Identify bottlenecks and bugs, and devise solutions to these problems
• Help maintain code quality, organization, and automatization
• Ensure high performance and responsiveness of requests.
• Must be able to write solutions that scale
• 3 - 4 years of full-time work experience in React Native
• Self-motivated with excellent work ethics
• Experience in React Native bridging concepts
• Experience with Typescript.
• Have developed and published apps for either Android or iOS.
• Design, development, coding, testing and debugging skills
• Knowledge of version and revision control practices and procedures
• Knowledge of prototyping and rapid development techniques
• Strong verbal and written communication skills Desired Candidate
• State management in mobile applications
• Security methodologies in mobile application development
• Experience with offline storage, and performance tuning
• Experience working on plugin integration.
• Optimize code for performance and scalability
• Deployment of apps on App Store / Play Store
• Collaborate with cross-functional teams to define, design, and ship new features
• Experience working with remote data via REST and JSON
• Experience with third-party libraries and APIs
• Proficient understanding of code versioning tools such as GIT
• Ensure the technical feasibility of UI/UX designs
• Can work well independently as well as in a team
• Flexible to work in any mobile technology
• Understanding of Agile development methodologies
• Interacting with Business Analysts, SMEs to understand the Business Processes and Business Rules
• Familiarity with native build tools, like Xcode, Gradle ( Android Studio, IntelliJ)
• Strong mobile development experience, including integration with Native Modules and custom iOS/Android SDKs
•  

• You will be building and shipping robust apps to Android/ iOS devices using a single codebase.
• You will be writing readable and clear code using Dart that will be extensively documented for future use and upgrades.
• You will be sharing feedback and brainstorming ideas with teams to improve the development process.
• Understand basic concepts of design for developing user friendly applications.
• Stay up to date with the latest technologies.

Albatronix Consulting is hiring "Flutter Developer" for one of its clients LeverageEdu.

About Leverage Edu:

At Leverage Edu, we are democratizing access to global opportunities for students everywhere. By helping students make the right career choices with the aid of information and pathways that they can trust, we are opening doors to opportunities they could not access without the right guidance and support. Making sense of the complex web of courses, colleges, careers, and geographies is a tough task – by leveraging technology but connecting with students at a personal level we help them maximize their potential. To build towards this goal we are looking for people with the ambition and hustle to make the world a smaller place and get people closer to their dream opportunities. We are building at a breakneck speed in one of the fastest-growing industries in the world and the opportunities for growth are limitless.

About the Role: 

As a tech-based student admissions platform, technology plays a vital role in our daily business impact decisions. As a Flutter Developer, you are required to develop features for LeverageEdu's applications. Have an immense sense of ownership and responsibility for the work assigned and timely completion of deadlines. You'll be working closely with top school graduates, ex-McKinsey, BCG, Deloitte, EY, Byju's, Paytm employees to establish, nurture and grow business across categories and territories. This is an amazing opportunity to learn from an extraordinary team, grow massively and help students around the globe build awesome careers for themselves.

What you will do: 

• Design, execute and maintain processes across applications and work on bug fixing and improving the overall apps’ performance
• Ensure that the quality, performance, and responsiveness of the applications are top-notch all the time
• Build and maintain the quality of code, organisation, and automation
• Work closely with the tech team, ascertaining the requirements and develop well-defined innovative solutions
• Manage and analyse the working of existing software applications

What you will need: 

• Bachelor's or Master's Degree - preferably in Computer Science
• Have two or more iOS/Android apps developed with Flutter. Either deployed on the AppStore/Google Play or available on Github
• 5+ years in mobile software development
• Experience with third-party libraries and APIs
• Understanding of the Agile development life-cycle
• Experience with Git, Jenkins, or other version control tools
• Ability to write readable code, create extensive documentation for existing code, and refactor the previously written code into a readable state

What you will get: 

• Industry best perks
• Ground-level view of building out a global Ed-tech company that is going to impact hundreds and thousands of lives
• Be a part of the core team that drives the growth of the company
• Phenomenal work environment, with massive ownership and great growth opportunities

React Native Job Description

• Work as part of a small team to build React Native iOS / Android applications for clients.
• Architect, build, and maintain excellent React Native applications with clean code.
• Implement pixel-perfect UI's that match designs.
• Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
• Integrate third-party APIs.
• Write unit and integration tests.
• Release applications to the Apple and Google Play stores.
• Work with native modules when required.
• Work as part of a small team of a software developers.
• Complete weekly sprints, and participate in sprint retrospectives and daily standups.
• Assist with building estimates.
• Work with modern tools including Jira, Slack, GitHub, Google Docs, etc.
• Be part of a community of React Native developers who share knowledge and help each other as problems arise.
• Follow the software development process.

Requirements

• 2+ years of professional experience working with React Native.
• 4+ years of professional software development experience.
• Experience working with Swift, Objective C, and Java a plus but not required.
• Meaningful experience working on large, complex systems.
• Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon, both in regards to estimates and to the general process.
• Ability to identify with the goals of clients and dedicate yourself to delivering on the commitments you and your team make to them.
• An understanding of React Native best practices and a commitment to following them.
• Ability to work through new and difficult React Native issues and contribute to libraries as needed.
• Ability to create and maintain continuous integration and delivery of React Native applications.
• A positive mindset and can-do attitude.
• A passion for software development. It’s not just your career, it’s also your hobby. You’re constantly striving to learn new things and improve. You follow industry news, regularly tinker with new technologies, and read books and blogs to keep your skills current.
• You work well within a team environment and enjoy working in the office with your colleagues.