Senior React Native Developer at Big Rattle Technologies · Remote only · 4 - 7 years · ₹10L - ₹15L / yr · Profitable · Remote only · Posted 4 May 2026

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
About
Connect with the team
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Role & Responsibilities:
Design and develop mobile applications using React Native.
Collaborate with cross-functional teams to define, design, and ship new features.
Ensure performance, quality, and responsiveness of applications.
Debug and fix issues, improve application performance, and maintain code quality.
Work onsite with the client team in Trichy.
Requirements:
Minimum 2 years of hands-on experience in React Native mobile app development.
Strong knowledge of JavaScript/TypeScript and mobile UI/UX principles.
Experience with REST APIs, third-party libraries, and integration.
Ability to work independently and in a team environment.
Immediate availability preferred.
CLICK "Apply Now" https://gosuperedtech.com/career/senior-react-native-developer to apply.
ROLE OVERVIEW
We are looking for a Senior React Native Developer (React Native + Expo) to lead the development of reliable, high-performance mobile applications used daily by parents, teachers, and schools across India.
In this role, you will take ownership of our mobile app architecture, drive best practices using React Native with Expo, and collaborate closely with product managers, designers, backend engineers, and AI teams.
Your work will directly impact real-world education workflows such as admissions, communication, learning journeys, and school operations — at scale.
KEY RESPONSIBILTY
- Design, develop, and maintain scalable mobile applications using React Native with Expo
- Own the mobile app architecture, technical decisions, and long-term maintainability
- Translate product requirements, wireframes, and UI/UX designs into high-quality mobile experiences
- Integrate REST APIs, real-time services, and backend systems smoothly
- Ensure applications are performant, responsive, and stable across Android and iOS devices
- Leverage Expo APIs (Camera, Media, File System, Notifications, etc.) effectively
- Manage Expo EAS builds, OTA updates, and release workflows
- Identify and resolve complex bugs, performance bottlenecks, and crash issues
- Write clean, well-documented, and testable code aligned with engineering standards
- Lead code reviews and raise overall mobile code quality
- Mentor junior developers and contribute to building a strong mobile engineering culture
- Collaborate within Agile teams to plan, estimate, and deliver features iteratively
- Continuously improve mobile development workflows, tooling, and developer experience
📢 Hiring: React Native (Mobile Application Developer )
📍 Location: Onsite – Trichy
🕒 Experience: 2+ Years
📄 Type: Contract (Immediate Joiners Preferred)
Role & Responsibilities:
Design and develop mobile applications using React Native.
Collaborate with cross-functional teams to define, design, and ship new features.
Ensure performance, quality, and responsiveness of applications.
Debug and fix issues, improve application performance, and maintain code quality.
Work onsite with the client team in Trichy.
Requirements:
Minimum 2 years of hands-on experience in React Native mobile app development.
Strong knowledge of JavaScript/TypeScript and mobile UI/UX principles.
Experience with REST APIs, third-party libraries, and integration.
Ability to work independently and in a team environment.
Immediate availability preferred.
Where You’ll Create Impact
· Build & Ship: Architect, build, and deploy production-grade iOS and Android features using React Native + TypeScript from scratch to store release.
· Pipeline Ownership: Own the full release lifecycle using Expo + EAS, managing App Store/Play Store submissions, provisioning, and CI/CD.
· Craftsmanship: Turn complex Figma designs into ultra-fast, polished components with fluid animations, backed by clean API integrations and rock-solid performance.
· Systems Thinking: Scale mobile infrastructure to handle heavy data flows, offline sync, and real-time enterprise AI features seamlessly.
What Sets You Up for Success
· 5+ years of hardcore mobile engineering experience (Android/iOS foundation, ideally within high-growth, high-intensity startups).
· Outlier Agency: High-integrity work ethic, extreme initiative, and zero need for hand-holding.
· Performance Obsession: Track record of shipping silky-smooth, high-performance apps with complex UI, animations, and tight memory management.
· Release Mastery: Deep comfort with Figma-to-code workflows and navigating the entire release cycle from local IDE to live store deployments.
· Quality Mindset: Hands-on experience with unit testing, end-to-end QA pipelines, and production monitoring.
Apply here (application form): https://forms.gle/EVnJ9dPSjHg5WzqH7
SuperKalam (YC W23) is building the best AI tutor platform out of India, in the vein of Duolingo. This is a high impact role. We are eager to talk to a Mobile Engineer with an amazing sense of quality in engineering deliverables and strong ownership.
Requirements
- Ideally 2 to 4 yrs of experience building mobile apps + backend (React Native and NodeJS/NestJS)
- Strong engineering fundamentals, loves great architecture and writes scalable code
- Uses AI in workflow beyond prompting: skills, plugins, workflows, loops, agents
- Mobile: high quality UI and smooth animations; handled performance, optimized app builds, push notifications. Bonus: bridges, widgets, own libraries
- Backend: CRUD APIs, Redis, queues, caching, PostgreSQL / MySQL, rate limiting, basics of scaling and security, cloud (AWS, Azure or GCP). Bonus: Elasticsearch
- Preferred: Gen AI engineering (production AI pipelines, agentic workflows, voice agents, RAG / knowledge graphs). Bonus: Python
Responsibilities
- Build new features and initiatives across backend and the mobile app
- Deployments, performance, push notifications
- Set up tooling and run experiments: crons, automation workflows, AI tooling
- Product and design reviews
- Keep pushing the team's tech quotient with evolving technology and AI tooling
- Decide for speed to production plus quality for today
Who will thrive here: 2+ yrs in a product based startup (including internship), enjoys complex engineering and product problems, engineering mindset (scripts, automation, quick dashboards), ownership mindset and a strong individual contributor, first principle thinking and clear communication.
Compensation: 15 to 35 LPA based on experience. ESOPs for the right candidate.
Interview: resume shortlisting, 30 min intro meet, 1h 15m in-person fundamentals round (JS/TS, no DSA), 1h 15m in-person system design (LLD), optional 2-3 day fullstack mobile assignment, optional 1h 15m system design (HLD).
Location: Bengaluru. Full-time. Full JD: https://www.ycombinator.com/companies/superkalam/jobs/2gkQmXq-mobile-engineer-react-native-fullstack
Click "Apply Now" in https://gosuperedtech.com/career/senior-fullstack-developer to apply
Role Overview
As a Senior Fullstack Developer at GoSuper, you’ll help build and ship features across both web and mobile platforms. You’ll work with React, Next.js, React Native, and Node.js to deliver scalable, user-friendly experiences that power real learning outcomes.
You’ll collaborate closely with designers, product managers, and other engineers to bring ideas to life — from concept to production. This is a hands-on development role with significant impact across the stack.
Core Responsibilities
- Develop, test, and deploy frontend and backend features
- Build responsive web apps using React and Next.js
- Develop mobile apps using React Native
- Consume and integrate APIs built with Node.js/NestJS
- Optimize applications for performance, usability, and reliability
- Collaborate with designers and product teams to implement UI/UX
- Contribute to code quality, reviews, and team knowledge-sharing
- Participate in planning, estimation, and technical discussions
What We Value
- Strong fundamentals in web and mobile development
- Passion for building great user experiences
- Clear communication and collaborative mindset
- Attention to performance, design, and usability
- Ownership — you take responsibility for your work and results
Requirements
- 3+ years of experience as a fullstack or frontend/backend developer
- Proficient with React and Next.js for web development
- Hands-on experience with React Native for mobile apps
- Good understanding of JavaScript/TypeScript
- Experience working with Node.js and API integrations
- Familiar with Git, CI/CD workflows, and cloud environments (AWS/GCP)
- Knowledge of databases (SQL/NoSQL) and caching (Redis)
Bonus Points
- Experience building real-time features (WebSockets, push notifications)
- Familiarity with monorepo tools (Nx, Turborepo)
- Exposure to SaaS, EdTech, or AI-powered products
- Prior experience in a fast-paced startup environment
Compensation
- Competitive + Bonus + ESOPs
- Based on experience, skillset, and contribution. Includes performance-based bonuses and equity participation.
Benefits
- Remote-friendly with optional Bengaluru HQ
- Equity ownership in a high-growth EdTech startup
- Autonomy, learning opportunities, and impactful work
- Fast, feedback-driven culture with top-tier mentorship
- Cult Elite and Cult Play Pass for employees
- Be part of building the future of education
We are looking for a Full Stack Developer who is eager to kickstart their career in software development. This role offers a fantastic opportunity to grow by working closely with experienced engineers on real product features that impact thousands of learners. Click "Apply Now" in https://gosuperedtech.com/career/senior-fullstack-developer to apply
Role & Responsibilities
What You'll Rock Daily:
- Build & Polish iOS Magic: Dive deep into SwiftUI for sleek, modern UIs and UIKit for rock-solid legacy love. Make our app swipe-right smooth!
- Cross-Platform Adventures: Tinker with Flutter basics to bridge iOS & Android – because love knows no platform boundaries.
- Ship Features Fast: From profile boosts to match notifications, own end-to-end development, testing, and launches that wow 50M+ users.
- Debug Like a Detective: Squash bugs, optimize performance, and ensure our app runs buttery on every iPhone in Bharat.
- Team Up: Collaborate with product peeps, designers, and fellow devs in high-energy sprints. Bonus: Brainstorm "shaadi specials" over chai!
Ideal Candidate
- Strong iOS Developer profile (B2C background)
- Mandatory (Experience): Must have 3+ years of hands-on experience in iOS development with atleast 1+ years in a B2C product company
- Mandatory (Skill 1): Must be proficient in both SwiftUI (modern UIs) and UIKit (legacy surfaces), and must have personally shipped 1+ iOS apps live to the App Store (verifiable links expected)
- Mandatory (Skill 2): Must have a solid grasp of iOS App architecture (MVVM or similar), REST API integration, Git, and CI/CD pipelines for mobile builds and releases
- Mandatory (Skill 3): Must have basic, hands-on Flutter exposure
- Mandatory (Company): B2C product companies. Recent B2C experience with prior exposure to B2B also acceptable
- Mandatory (Note): This role is for the Astrochat product of shaadi.com
- Preferred (Education): B.Tech / M.Tech from a top-tier college
- Preferred (Bonus iOS Stack): Hands-on with RxSwift, Core Data, or push notifications
About the Role
We are looking for a Junior React Native Developer with 1–2 years of hands-on experience in developing mobile applications using React Native for both Android and iOS platforms.
The ideal candidate should have strong fundamentals in React Native and JavaScript/TypeScript, along with exposure to AI/ML technologies and AI-assisted development tools such as Claude, Cursor, GitHub Copilot, ChatGPT, or similar tools.
This is a Junior-level role for someone who is eager to build mobile applications, learn new technologies, and work on AI-enabled features.
Key Responsibilities
- Develop, maintain, and enhance cross-platform mobile applications using React Native.
- Build and support applications for both Android and iOS platforms.
- Develop reusable, scalable, and user-friendly mobile UI components.
- Integrate REST APIs, third-party APIs, SDKs, and backend services.
- Debug and troubleshoot applications across Android and iOS devices.
- Assist with application testing, performance optimization, and bug fixing.
- Assist in integrating AI/ML or GenAI-powered features into mobile applications.
- Use AI-assisted development tools such as Claude, Cursor, GitHub Copilot, ChatGPT, or similar tools for development, debugging, code generation, and problem-solving.
- Collaborate with the development team to understand requirements and deliver features.
- Participate in code reviews and follow development best practices.
Required Skills
- 1–2 years of hands-on experience with React Native.
- Good hands on experience with JavaScript / TypeScript.
- Understanding of React Native components, hooks, navigation, and state management.
- Experience with REST APIs, JSON, and API integration.
- Exposure to Android and iOS application development.
- Familiarity with Android Studio and Xcode.
- Experience with mobile application debugging and testing.
- Exposure to AI/ML, GenAI, AI APIs, or AI-powered application features.
- Familiarity with AI-assisted development tools such as Claude, Cursor, GitHub Copilot, ChatGPT, or similar tools.
- Good problem-solving and communication skills.
Educational Qualification
B.Tech / B.E. in CSE, IT, or AI/ML only.
Preferred Qualifications
- Candidates currently based in Hyderabad are preferred.
- Immediate Joiners or candidates with a short notice period are preferred.
- Exposure to AI/ML or GenAI projects is an advantage.
- Experience integrating AI APIs into mobile applications is a plus.
- Knowledge of Git/GitHub and basic CI/CD concepts is preferred.
- Experience with Google Play Store / Apple App Store deployment is an added advantage.
Work Location
Gachibowli, Hyderabad
Note: This is a Junior React Native Developer position. Candidates with 1–2 years of relevant React Native experience, Android/iOS exposure, and AI/ML exposure are encouraged to apply.

We have an existing academic journal publishing and management platform developed using:
- Next.js
- React
- Node.js
- PostgreSQL
- REST APIs
The platform is already functional and includes author, reviewer, editorial and admin workflows.
We are looking for an experienced Senior Next.js Developer / Frontend Tech Lead to work on an existing production application.
The primary requirement is to redesign and rebuild the frontend while reusing the existing backend, APIs, database and business logic wherever technically feasible.
This is not a greenfield project and we do not want unnecessary rewriting of the existing backend.
Key Responsibilities
- Study and understand the existing Next.js application and architecture.
- Review existing APIs and backend integration.
- Develop a completely redesigned, professional academic/publishing frontend.
- Convert Figma designs into clean, responsive Next.js interfaces.
- Integrate the new frontend with existing Node.js APIs.
- Maintain existing workflows and functionality.
- Work on author, reviewer, editor and admin dashboards.
- Develop responsive interfaces for desktop, tablet and mobile.
- Improve frontend performance, usability and maintainability.
- Ensure proper authentication and role-based access handling.
- Identify frontend/backend dependencies that may require minor backend changes.
- Follow clean coding standards and reusable component architecture.
- Work through Git with proper commits, branches and code reviews.
- Coordinate with UI/UX designer and QA during development.
- Ensure the redesigned application is production-ready.
Existing Modules
The existing platform includes functionality such as:
- Author registration/login
- Manuscript submission
- Manuscript tracking
- Peer-review workflow
- Reviewer dashboard
- Editorial workflow
- Publication processing
- Payment-related workflows
- Article/publication management
- Journal management
- Certificates
- Referral/credit functionality
- Admin dashboard
- Reports and operational dashboards
The exact modules and workflows will be provided during the project.
Required Skills
Must Have
- 4+ years of professional React/Next.js experience
- Strong Next.js knowledge
- React + TypeScript
- JavaScript/TypeScript
- REST API integration
- HTML/CSS
- Responsive design
- Git/GitHub/GitLab
- Experience working with existing production codebases
- Good understanding of authentication and authorization
- Ability to understand backend APIs and database relationships
Good to Have
- Node.js
- PostgreSQL
- Tailwind CSS
- Next.js App Router
- Dashboard/SaaS application development
- Experience with complex multi-role applications
- Experience with academic, publishing, research or workflow-based platforms
What We Are Looking For
We are looking for someone who can understand an existing application before changing it.
You should be comfortable working with an existing codebase rather than expecting to rebuild everything from scratch.
Strong attention to:
- UI quality
- UX
- Performance
- Clean architecture
- Reusable components
- Security
- Cross-browser compatibility
- Maintainability
is required.
Important
- Existing backend and database should be reused wherever possible.
- Do not rewrite existing functionality without approval.
- Existing production data must not be modified or exposed.
- Development will be performed in a staging environment.
- Git-based development is mandatory.
- NDA and confidentiality agreement will be required.
- Ownership of the developed code and project deliverables will belong to the company.
Selection Process
Shortlisted candidates will first be asked to:
- Review the existing application architecture.
- Understand the existing APIs and workflows.
- Identify what can be reused and what needs modification.
- Complete a small paid technical task.
- Discuss the proposed development approach and timeline.
Candidates who demonstrate strong understanding of the existing system will be preferred.
About Vijay Sales
Vijay Sales is a consumer electronics and appliances retailer, selling through its stores across India, its website and its app.
Our technology team builds the software the business runs on: order management, customer support automation over WhatsApp, reviews and ratings, and the dashboards our operations teams use every day.
The role
We are hiring full stack engineers who can take a feature from spec to production across React, Node.js and MongoDB.
You will work on customer-facing and internal products, often both in the same week. One sprint may be a review submission page used by customers on their phones. The next may be an API that pulls order status from our order management system for the support bot.
We are looking for engineers with 3 to 6 years of experience who are comfortable owning both the front end and the back end of what they ship.
What you'll do
- Build responsive, mobile-first interfaces in React using our in-house UI component libraries.
- Design and build REST APIs and background services in Node.js.
- Model data in MongoDB and keep queries fast as collections grow.
- Integrate with the systems the business runs on: order management, ERP, point of sale and ticketing.
- Build messaging flows over WhatsApp, email and SMS, including delivery tracking, retries and fallbacks.
- Work with the conversational AI team to expose order, invoice and support actions to the customer support bot.
- Write tests, review code and own your features in production, including monitoring and fixing what breaks.
- Work directly with product and operations teams to turn a business problem into a working release.
Our stack
React, Node.js and MongoDB are the core. Everything else in the table is what you will connect to or build alongside.
- Front end: React, with Vijay Sales' in-house UI component libraries
- Back end: Node.js services and REST APIs
- Database: MongoDB
- Messaging: WhatsApp Business, Amazon SES for email, RCS and SMS as fallback
- Conversational AI: LangChain and Rasa, behind the customer support bot
- Business systems: Order management (OMS), ERP, POS, Ticketing Systems
What we're looking for
- 3 to 6 years of professional experience building and shipping web applications.
- Strong JavaScript and TypeScript fundamentals: async patterns, the event loop, modules, error handling.
- Solid React skills: hooks, state management, component design, performance on low-end mobile devices.
- Hands-on Node.js experience: building REST APIs, authentication with JWT, role-based access, input validation.
- Working knowledge of MongoDB: schema design, indexing, aggregation pipelines.
- Experience integrating third-party APIs and webhooks, and handling their failures gracefully.
- Comfort with Git, code review, automated tests and CI/CD.
- Clear written and spoken communication. You will talk to operations and business teams, not only engineers.
Nice to have
- Experience with the WhatsApp Business API, Gupshup or similar messaging platforms.
- Exposure to LLM application development: LangChain, retrieval, tool calling, or bot frameworks such as Rasa.
- Background in retail, e-commerce or order management systems.
- Experience integrating with ERP or POS systems.
- Familiarity with AWS, Redis and message queues.
- React Native or other mobile app experience.
Why join and how to apply
- Your work reaches real customers and store teams quickly. There is very little distance between a release and the people who use it.
- You own features end to end, from the first conversation with the business team to production.
- You get hands-on exposure to conversational AI and LLM-based products alongside core full stack work.












