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I’m building a full-featured e-commerce site and need a developer (or small team) who is fluent with the MERN stack—React.js on the front end, Node.js with [login to view URL] on the back end, and MongoDB as the database. Core scope The store must be fast, cleanly coded, and fully responsive on mobile, tablet, and desktop. Beyond a polished UI, I’ll need secure user authentication, seamless MongoDB integration, and a checkout flow that uses PayU Money as the payment gateway. Key shopping features • Advanced product search and filtering so visitors can drill down quickly. • A reliable shopping cart and checkout process with real-time price and inventory updates. • User reviews and ratings attached to each product for social proof. What I’d like from you 1. A brief note on your approach to structuring a scalable MERN application. 2. Links to a few live projects—ideally e-commerce—built with React, Node/Express, and MongoDB. 3. Your estimated timeline and total cost, broken down by major milestones (design, core build, QA, deployment). I’m ready to move quickly once I see a strong match, so please include any clarifying questions in your proposal.
Project ID: 40695605
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174 freelancers are bidding on average ₹1,026 INR/hour for this job

Your checkout flow will fail under concurrent traffic if you don't implement optimistic locking on inventory updates in MongoDB. Without it, two users can purchase the same last item simultaneously, causing overselling and refund headaches. Quick questions - are you planning to handle PayU Money webhooks for payment confirmation, or expecting synchronous responses? And what's your expected product catalog size, because indexing strategy changes dramatically above 10K SKUs? Here is the architectural approach: - REACT.JS: Build component library with lazy loading and code splitting to keep initial bundle under 200KB, ensuring sub-2s load times on 3G networks. - NODE.JS + EXPRESS: Design stateless API with JWT authentication and rate limiting to prevent brute-force attacks on user accounts during checkout. - MONGODB: Implement compound indexes on product filters (category + price + rating) and use aggregation pipelines for real-time inventory tracking across cart sessions. I've built 3 MERN e-commerce platforms that processed $2M+ in transactions without payment failures or inventory conflicts. Let's schedule a 20-minute call to walk through your PayU integration requirements and deployment architecture before you commit to a timeline.
₹900 INR in 30 days
7.2
7.2

Hi, I can build your complete MERN e-commerce platform with a scalable architecture, secure authentication, MongoDB integration, advanced product filtering, cart/checkout, reviews, ratings, inventory management, and PayU Money payment integration. I’ll structure the application with reusable React components, RESTful Express APIs, properly indexed MongoDB collections, secure authentication, validation, and separate service layers so the platform remains easy to maintain and scale. Milestones Design & Architecture: 3–4 days Core MERN Development: 10–14 days Payment, Reviews & Inventory: 4–5 days QA, Optimization & Deployment: 3–4 days Estimated timeline: 20–27 days, depending on final requirements. I’ll also ensure the site is fully responsive, optimized for performance, and tested across major devices and browsers. I’m ready to discuss your product structure and can share relevant MERN/e-commerce work and technical examples. Best regards, Shakti Singh
₹1,000 INR in 40 days
6.8
6.8

Hi there, I can develop your full-featured e-commerce platform using the MERN stack (React, Node.js, Express, MongoDB) paired with a seamless PayU Money checkout. I will implement modular MVC architecture, indexed MongoDB schemas for fast filtering, and atomic React state to guarantee real-time cart and inventory sync. Ready to share live MERN builds in chat and start right away. Best regards, Nikhil Chandra Roy
₹1,000 INR in 40 days
6.3
6.3

Hello, I have 10 years of experience building scalable full-stack applications, with strong expertise in MERN development using React.js, Node.js, and MongoDB. I would structure this e-commerce platform with modular components, clean API architecture, optimized database queries, secure authentication, and reusable services to keep the code maintainable as the store grows. I can implement advanced search and filtering, real-time cart and inventory handling, product reviews, ratings, and secure PayU Money checkout with reliable API integration. The responsive UI will be optimized across mobile, tablet, and desktop, with performance considered throughout development. I can provide relevant portfolio examples and propose clear milestones covering design, core development, QA, and deployment. One key question: do you already have the UI designs, or should I handle the frontend structure as well? Best regards
₹750 INR in 40 days
5.7
5.7

Hello, I’ve gone through your project details and this is something I can definitely help you with. I have 10+ years of experience in mobile and web app development, working with Flutter, Android, iOS, React, Node.js, and APIs. I focus on clean architecture, scalable code, and clear communication to ensure the project runs smoothly from start to finish. I will first review your requirements, suggest the best technical approach, and then proceed with development while keeping you updated at every stage. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m interested in your project and would love to understand more details to ensure the best approach. Could you clarify: How do you envision the user experience for product searches and checkout? 1. Do you need this for mobile, web, or both? 2. Do you already have UI/UX designs or should we create them? 3. Will there be any third-party API or payment gateway integration? 4. What is your expected timeline for completion? 5. Are there any reference apps or websites you like? Let’s discuss over chat! Regards, Arpit Jaiswal
₹1,889 INR in 15 days
5.7
5.7

Hi, I can build your scalable MERN e-commerce platform with React, Node.js/Express, and MongoDB. I’ll implement secure authentication, advanced search/filtering, real-time cart/inventory, PayU Money checkout, reviews, and ratings. I’ll follow a clean modular architecture with reusable components, secure APIs, optimized database queries, and responsive UI. Timeline: 3–4 weeks, delivered through Design → Core Development → QA → Deployment milestones. Rate: 750 INR/hour, with the final cost based on the confirmed scope. I can share relevant e-commerce references and clarify any requirements before starting.
₹750 INR in 40 days
5.3
5.3

Hi! We’ve carefully reviewed your React E-Commerce Website Development project requirements and understand what you’re looking to achieve. Our team has 18+ years of industry experience and has delivered 1,000+ web & mobile solutions across different industries. We can handle the complete development lifecycle with a strong focus on quality, communication, and reliable delivery within your budget and timeline. We’re available to start immediately. Please join the chat so we can discuss the requirements, clarify the key details, and get started right away.
₹751 INR in 44 days
5.1
5.1

As a developer with over 8 years of experience, I'm confident that I can execute your React E-commerce Website Development project masterfully. My solid understanding of the MERN stack allows me to build fast, scalable, and robust digital solutions that align with my client's business goals. A glance at my portfolio will reveal numerous successfully delivered React-based e-commerce projects - much like what you're aiming for. In developing your store, my top priority will be speed, clean code, and complete cross-device responsiveness.I know how crucial it is to create a seamless user experience with functions such as advanced product search and filtering, real-time updates on cart and checkout processes, and incorporating customer reviews - I’ve got you covered there! In terms of timeline and cost, I will provide a detailed breakdown for each major milestone: design, core build, QA/testing, and deployment. Additionally, being familiar with PayU Money as a payment gateway will facilitate smoother integration. All in all, my 98% on-budget delivery speaks for itself in demonstrating that your project will be tenaciously managed from start to finish. A conversation between us would affirm how I can leverage my expertise to bring the exact results your ideas need. Let's turn your vision into an exceptionally performing reality!
₹750 INR in 40 days
5.1
5.1

Hello, I can build your complete e-commerce platform using the MERN stack, with a scalable architecture, clean React UI, secure Node/Express APIs, and MongoDB integration. I’ll implement authentication, advanced product search/filtering, real-time cart and inventory handling, product reviews/ratings, and secure PayU Money checkout, with responsive performance across all devices. I’ll structure the project into clear modules for frontend, backend, database, authentication, payments, and admin management, making it easy to maintain and expand. I’ll handle development, QA, deployment, and optimization across defined milestones. Relevant MERN and e-commerce projects, along with live examples, can be shared directly through live chat. I can provide the estimated timeline and milestone-wise cost after reviewing the final feature list. Best Regards, Abhijeet
₹750 INR in 40 days
5.3
5.3

As an experienced web and mobile app developer with over 14 years in the field, I believe I have the skills and expertise to build your full-featured e-commerce site using the MERN stack. My proficiencies in both frontend and backend technologies including JavaScript, MongoDB and React.js will be instrumental in creating a scalable solution for your business. Having delivered more than 416 successful projects, many of which were e-commerce sites, I understand the critical elements your store must possess. This includes a fast and clean codebase, secure user authentication, seamless database integration and an intuitive checkout flow. I'm also adept at integrating various payment gateways like PayU Money. My approach to web development involves careful planning & architectural design to ensure scalability and robustness of the system. In terms of timeline and cost, I can provide a detailed breakdown for each major milestone: design, core build, QA, deployment; ensuring transparency as we progress through the project. Together we can surely create an indomitable digital presence that will give you an edge in the market space! Let's hop on a call?
₹1,200 INR in 40 days
4.4
4.4

Hi, I have successfully completed 100+ projects similar to "React E-Commerce Website Development" and can deliver high-quality results for you quickly. With 10 years of experience in JavaScript, Node.js, Software Development, I ensure clean code, timely delivery, and clear communication throughout the process. I can complete this within 7 days for ₹833 INR. I am ready to start immediately. Please feel free to message me so we can discuss the details. Best regards, Praveen Kumar
₹832.50 INR in 7 days
4.1
4.1

Hi, I can build a scalable MERN e-commerce platform with React, Node.js, Express, and MongoDB, focusing on performance, security, and future growth. With 10+ years of full-stack experience, I've developed e-commerce platforms with secure authentication, payment integrations, advanced search, and real-time inventory management. My approach: React frontend with reusable components, Express REST APIs, MongoDB with optimized indexing, JWT authentication, and PayU Money integration for a seamless checkout experience. Timeline: 1 week for UI setup, 2 weeks for core shopping features, 1 week for QA, payment integration, and deployment. You'll receive a fully responsive store with advanced product filters, cart, reviews, admin panel, clean Git history, documentation, and post-launch support. I'm ready to discuss your product catalog, inventory flow, and any custom business rules before we begin.
₹750 INR in 40 days
4.1
4.1

Hi there, I am more than equipped to handle this React-based e-commerce project for you. Having built several e-commerce websites before, including utilizing the MERN stack with React, Node/Express, and MongoDB, I am confident that I can deliver on your core scope requirements while incorporating key shopping features such as advanced filtering and real-time inventory updates. Structure and scalability are pivotal in any digital project, so you'll be pleased to note that my approach involves meticulous planning and diligent execution from design all the way through adoption. You can review some of these successful projects yourself - both in terms of UX/UI as well as overall functionality - on my portfolio which includes e-commerce case studies similar to what you are looking for. As for timeline and cost breakdowns, we would commence with a detailed design outline followed by a development phase that I estimate would take up to X months. This will also include a thorough QA process to ensure a seamless checkout flow using PayU Money. Rest assured; I'm committed to delivering a fully-responsive site capable of improving shopping experiences across devices all while emphasizing quick load times and top-notch cybersecurity. Archna Sharma
₹750 INR in 40 days
3.9
3.9

Hi, The main risk here isn’t the React storefront—it’s keeping cart pricing, inventory, and PayU payment status consistent when those states change during checkout. I’d structure the MERN application around clear product, user, cart/order, and payment modules, with Node/Express remaining authoritative for price, stock validation, and PayU transaction verification. MongoDB indexes would be planned around the actual search/filter combinations so catalogue performance doesn’t degrade as products grow. I’ve worked on e-commerce products involving catalogue, shopping, checkout, and responsive customer flows, so I’d approach this from the commerce workflow rather than treating it as just a UI build. Two points I’d confirm: will inventory be managed here or synced from another system, and do you already have the PayU merchant credentials/callback setup? I can provide a milestone-based estimate once those two scope points are confirmed. Thanks
₹1,000 INR in 40 days
4.1
4.1

Hi-Abror Here From Uzbekistan. "Scalable MERN E-Commerce Site" - I can build your store using React, Node.js, Express, MongoDB, and secure API architecture. I can develop responsive interfaces, authentication, product management, search filters, cart systems, PayU checkout, reviews and ratings with scalable MERN application structure. I will implement clean frontend and backend separation, database optimization, testing, deployment, milestone delivery and provide documentation with technical guidance for future expansion. Would you like the MERN architecture optimized for high traffic and future feature additions? Could you please clarify the following questions to help me better understand the project? : Do you have existing UI designs or need a custom design? Which PayU Money integration flow do you prefer for payments? Looking forward to working with you.
₹15,000 INR in 40 days
3.3
3.3

Hi, I’m a senior Full-Stack/Cloud Engineer with 10+ years of experience building production web applications using React, Node.js/Express, MongoDB, AWS, and CI/CD. For your e-commerce platform, I’d structure the MERN application with a clean separation between React UI, Express REST APIs, business logic, and MongoDB, using reusable services and indexes for scalability. **Estimated timeline:** 3–4 weeks **Milestones:** Design/architecture → Core development → Payment & QA → Deployment/handover. I can share relevant live project examples and discuss the exact scope before starting. Thanks
₹750 INR in 40 days
3.4
3.4

Hi, I’d be happy to build your e-commerce platform using the MERN stack. I have experience with React, Node.js/Express and MongoDB, and can structure the application cleanly so it remains scalable and easy to maintain. I’d separate the frontend, API/business logic and database layers, with reusable React components and well-structured REST APIs. Authentication, validation, authorization and payment operations will be implemented securely with proper error handling. For the shopping experience, I can develop advanced product search/filtering, cart management, real-time price and inventory validation, product reviews/ratings and a complete PayU Money checkout flow with proper success/failure handling. I’d suggest milestones covering: • Architecture & UI setup • Core MERN development • Cart, checkout & PayU integration • Reviews, QA & optimization • Deployment and final testing Before confirming the timeline and total cost, I’d like to clarify the number of pages, admin requirements, order/shipping workflow and whether designs are already available. Do you already have the UI designs and product requirements? Will you need a separate admin panel for products, orders and inventory? Happy to discuss and get started.
₹1,000 INR in 40 days
3.4
3.4

Hi, I can build your e-commerce website using React.js, Node.js/Express.js, and MongoDB with a clean, scalable architecture. I have 8+ years of development experience and can handle the complete flow including secure authentication, product search/filtering, cart, real-time inventory validation, PayU Money checkout, reviews/ratings, responsive UI, QA, and deployment. I’ll structure the application into modular frontend, API, backend, and database layers so it remains easy to maintain and extend with future features. I can share relevant live projects and provide a milestone-based timeline and cost covering the core build, QA, and deployment. A couple of points I’d like to confirm: Is the product/catalog data already prepared? Do you already have an active PayU merchant account? Ready to get started. Thank You!!
₹750 INR in 40 days
3.4
3.4

Hi, I’ve read all your requirements very well and I’m really excited to work with you. I can build a clean, scalable MERN e-commerce platform with secure authentication, advanced search/filtering, real-time cart/inventory handling, reviews, and a properly integrated PayU Money checkout. I’ll structure the application in a modular way so future features can be added easily without affecting the existing system. Do you already have the UI/design ready? How many products/categories are expected at launch? Do you have a PayU merchant account already? I’d love to discuss your requirements and make the overall experience better. Let’s connect on chat to discuss well. Waiting for your response. Best Regards, Arshiya
₹1,000 INR in 40 days
3.0
3.0

Hi, I can help you build this as a scalable MERN e-commerce platform, not just a basic React storefront. I understand the key focus is fast responsive UI, product search/filtering, secure accounts, real-time cart/inventory handling, reviews, and a smooth PayU checkout. We’ve worked on similar e-commerce and marketplace builds using React, Node/Express and MongoDB, including MVPs that were structured for future scaling. One thing I’d like to clarify first: do you already have the PayU merchant/API setup, or should that be included in the development? For the build, I’d use a modular React + Node architecture with optimized MongoDB queries, secure APIs and a clean order/payment flow. Estimated timeline: 6–8 weeks Happy to discuss the scope and share relevant live work.
₹850 INR in 40 days
3.1
3.1

Kadodara, India
Member since Feb 24, 2026
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