E-Commerce Backend Development & Maintenance

@gauravgargcs

Hello, Hope you are doing well. With 9+ years of experience, we specialize in delivering scalable, high-quality digital solutions tailored to clearly defined business needs. Since your requirements match our core capabilities, I’m confident we can deliver a solution that is robust, refined, and built for long-term growth. Our approach is straightforward: understand the scope in depth, execute with precision, and deliver measurable results. From a strong front-end experience to a secure, enterprise-grade back-end, quality and reliability remain our priority. I’d be happy to discuss your requirements further and outline the best execution strategy. Best regards, Gaurav P.

@mrresearcher99

Hello, This role is a strong match for my experience. I have 5+ years of hands-on experience in MERN stack, PHP, and full-stack development, with a primary focus on building and maintaining scalable backend systems for e-commerce platforms. I can architect a clean, versioned REST API that covers catalogue, variants, cart, checkout, payments, returns, and seller onboarding. I’ve implemented Razorpay integrations with secure webhooks, refund handling, and complex pricing logic including discounts and promotions. I’m comfortable designing scalable data models optimized for fast search and high write volumes. Suggested Stack: Node.js (NestJS/Express) or Laravel, PostgreSQL/MySQL, Redis for caching, JWT + RBAC, Docker, Swagger/OpenAPI. I follow clean architecture, write unit and integration tests, and include logging and rate limiting from day one. My goal is to deliver a stable MVP that clears payments end-to-end in Razorpay sandbox and is easy for frontend teams to consume. Estimated MVP Timeline: 4–6 weeks. I’m interested in taking long-term ownership of the backend and supporting continuous scaling. Happy to share relevant project examples and discuss next steps. Best, Bhargav

@vishal1145

Your Razorpay webhook handler will fail silently if you don't implement idempotency checks—I've seen this cause duplicate order confirmations and inventory deductions when Razorpay retries failed callbacks. That single oversight cost one of my clients ₹2.3L in reconciliation before we caught it. Before architecting the solution, I need clarity on two things: What's your expected transaction volume at launch versus 12 months out? And are you planning multi-currency support or sticking with INR-only for the first year? These answers determine whether we start with PostgreSQL partitioning now or defer it. Here's the architectural approach: - PHP + LARAVEL: Build a modular service layer with repositories for cart, checkout, and inventory—strict separation so seller and buyer flows don't share state and cause race conditions. - RAZORPAY SDK + WEBHOOKS: Implement signature verification, idempotency keys using Redis, and automatic retry logic for failed refunds to maintain 99.7% payment success rates. - POSTGRESQL: Design JSONB columns for product variants and GIN indexes on search fields to handle 50K SKU lookups under 100ms without Elasticsearch overhead initially. - GRAPHQL + REST HYBRID: Expose GraphQL for complex catalogue queries (filters, nested variants) and REST for transactional endpoints—gives frontend flexibility without over-fetching data. - DOCKER + GITHUB ACTIONS: Containerized environments with automated PHPUnit tests running on every PR, blocking merges below 80% coverage so technical debt doesn't accumulate. I've built three ecommerce backends that processed ₹12Cr+ annually, including one that handled flash sales with 800 concurrent checkouts without cart state corruption. I don't take on projects where payment flows aren't stress-tested in staging—let's schedule a 20-minute call to walk through your edge cases and finalize the data model before I commit to an MVP timeline.

@muskaannadaf

Hi there! I'm Asma, a web developer and graphic designer with 10 years of hands-on experience helping brands stand out in crowded markets. I've worked with clients and agencies across fashion, hospitality, property, and luxury lifestyle sectors, and one thing stays constant: I'm obsessed with getting the details right. I don't just make things look pretty. I solve problems. Whether it's a logo that captures your brand's soul, a website that loads lightning fast , or a complete visual identity from business cards to social media assets, every element I create is intentional and built to convert. My toolkit spans the full creative spectrum: WordPress, Shopify, HTML/CSS/JS, PHP, Laravel, Figma, Photoshop, and Illustrator. I'm equally comfortable translating a PSD or Figma file into clean, functional code as I am designing from scratch. What you can expect working with me: fast responses, clear communication, and a genuine investment in making your project shine. I treat every client's vision like it's my own. I'd love to learn more about what you're looking for. Let's create something remarkable together. Looking forward to hearing from you!

@rohan3188

Hello, I've reviewed your requirements and have worked on similar projects before. With my experience and skills, I can complete your project to your satisfaction. Please contact me via chat to discuss the details. Thank you.

@irisinformatics

Hello, i have experience about 6 year in php , CI and larval done around 50 website and ci and larval project. Read your requirements and able to do your work. E-Commerce Backend Development & Maintenance need a seasoned backend developer to take full ownership of the server-side engine for a new ecommerce platform and stay on for ongoing maintenance as we scale. The scope begins with architecting a clean, well-documented API layer that powers the entire buyer journey—from browsing the catalogue and filling a cart, through checkout, payment, and post-purchase flows such as returns. In parallel, you’ll build out the seller pathway: onboarding, KYC verification, inventory sync, and order management. Kindly start the interview so that we can discuss the project in detail. Regard Manish Giri

@Sandiya

As someone who has been intricately involved in the web development space for over 15 years, I understand just how crucial an effective backend is for the success of an ecommerce platform. I have extensive knowledge and hands-on experience in both Node.js and PHP, languages I believe are best suited to fulfilling the requirements of your project. In addition to a robust development background, my team at Sandiya Solutions and I have successfully executed several payment-heavy projects with similar functionalities in the past. We can provide live examples or Git repos that prove our impeccable ability to create neat API layers and seamless integrations, just like requested with Razorpay. One of your key requirements is a well-documented and thoroughly tested code base that facilitates sharing endpoints across different teams. We not only embrace but also have implemented Swagger/OpenAPI documentation extensively. And as mentioned, continuous improvements and long-term maintenance hold equal significance for us once we launch a project successfully. Choosing me means choosing high quality workmanship, clear communication, and a partner who remains consistently committed to helping you scale gracefully. Reach out so we can discuss technical details together and chart out a realistic timeline that will make your MVP dream a reality.

@iwebphpdeveloper

Hello, I build scalable, secure backend engines for modern e-commerce platforms, taking full ownership from architecture to long-term maintenance. Your platform will be powered by a clean, documented API layer that handles the full buyer and seller journey with performance, security, and scale in mind. What I will deliver: • Modular backend architecture (API-first design). • Catalogue, cart, checkout & return workflows. • Razorpay integration (cards, wallets, net-banking, refunds, webhooks). • Secure payment state handling & validation. • Seller onboarding system with KYC uploads & status tracking. • Scalable product, inventory & order data models. • REST or GraphQL versioned APIs. • Swagger/OpenAPI documentation. • Role-based access control & rate limiting. • Logging, monitoring & audit-ready structure. • Automated unit + integration testing. • Clean, maintainable, production-ready codebase. • Ongoing backend maintenance & scaling support. Built for performance, reliability, and growth from day one. Best Regards, Abhijeet

@Rajoriadares

Hello Client, Hope you are great!!! I read you job description you are looking for web developer. I have sound of 7 years exp in wordpress, PHP, CI, Laravel, Drupal, Joomla and developed 145+ websites with good design. We are using the MVC model for security of website as well as develop three layer security in website and website is high skilled code follow all standards of development. I have been worked on many domain like ecommerce, Martrimony, Hotel Booking, Social, Healthcare, and Sport etc. I provide new vision for website and am always available for your support(24*6) . I hope you will be give positive response. Thanks

@malkesh3m

⭐ Hello there, My availability is immediate. I read your project post on React/Node Developer for E-Commerce Backend Development & Maintenance. We have extensive knowledge in MERN Stack (MongoDB/MySQL, Express JS, React, and NodeJS), as well as RESTful API integration. We are an experienced team of full-stack developers with skill sets in - React, JavaScript, jQuery, TypeScript, NextJS, React Native - NodeJS, ExpressJS - MongoDB, MySQL, PostgreSQL, SQLServer, SQLite - Redux, Thunk, GIT - JavaScript, HTML, CSS, Tailwind CSS - AWS, Azure, Digital Ocean, GoDaddy, Web Server Hosting Please send a message So we can quickly discuss your project and proceed further. I am looking forward to hearing from you. Thanks

@parthv78

Hello, I’m Parthkumar Virani, a backend developer with 5+ years of experience building and maintaining scalable ecommerce platforms with complex business logic. I understand you’re looking for someone to take full ownership of the server-side engine and stay on for ongoing maintenance as the platform grows. My focus is clean architecture, reliable APIs, and backend systems that remain stable under real-world ecommerce edge cases. What I’ll handle Well-structured API layer covering catalogue, cart, checkout, payments, and returns Robust cart and pricing logic that safely handles discounts, promotions, and edge cases Secure payment flows with proper confirmation and refund handling Modular seller onboarding and KYC tracking designed for future expansion Scalable data models for products, variants, inventory, and orders Versioned endpoints, automated testing for critical paths, and clear API documentation Logging, access control, and rate limiting built in from the start I work with a strong emphasis on code clarity, documentation, and long-term maintainability, making it easy for frontend teams to integrate and for the business to scale confidently. I can share relevant ecommerce experience, a clear MVP timeline, and support the project beyond launch. Looking forward to discussing next steps. Best regards, Parthkumar Virani

@Rupal878

Hi, I’ve carefully reviewed your requirement, and this is a serious backend ownership role not just endpoint development. Architecting a scalable eCommerce engine with Razorpay, seller onboarding, KYC workflows, and high-volume transaction handling requires clean system design from day one. Proposed stack: • Backend: Laravel (or Node.js with NestJS for modular architecture) • DB: PostgreSQL (optimized indexing for products/orders) + Redis for caching • API: Versioned REST with Swagger/OpenAPI docs • Payments: Razorpay SDK + secure webhook verification layer • Auth: JWT + RBAC • DevOps: Dockerized setup + CI/CD pipeline (GitHub Actions) I’ll build robust cart/checkout logic (discount-safe, edge-case proof), modular seller onboarding with KYC state tracking, scalable product/variant models, and 80%+ test coverage (unit + integration). A few quick questions: Expected product volume and daily order estimate at launch? Do you plan multi-vendor payouts later? REST preferred, or open to GraphQL? I can share relevant payment-heavy and marketplace backend examples in chat. Looking forward to hearing back from you and discussing this in the chat. Portfolio: https://www.freelancer.in/u/Rupal878 Rupal Saini

@abhishek060

Hi, I’ll architect a scalable backend (Node/NestJS or Django + PostgreSQL) with clean versioned APIs, Razorpay webhooks, solid cart/return logic, and 80%+ test coverage—built containerized with CI/CD so it’s production-ready from MVP to scale. Question: do you expect this to evolve into a multi-vendor marketplace with commission logic at checkout, or should we structure payouts separately after order completion? Can we discuss on chat. Regards Abhishek

@mkh559a5a1fd66e9

As a seasoned Full Stack Developer with 14+ years under my belt, I am confident that I am the best candidate to take on your E-commerce Backend Development and Maintenance project. Throughout my career, I have successfully developed numerous applications that intricately involved payment systems and high-volume data manipulations. My expertise in GraphQL and Node.js aligns exceedingly well with your project's requirements for well-documented, scalable APIs. I have the ability to design robust cart, checkout, and return logic that seamlessly handles discounts and promotions without compromising system's state- a requirement you explicitly outlined. I have also experienced working with Razorpay's API, making me confident about delivering secure webhooks for payment confirmations and refunds. . At this standpoint, it is important to note that I don't just stop after completing a project - my commitment extends beyond that stage to ensure your application works flawlessly as it scales into greater horizons. Given my skills in Payment Gateway Integration, RESTful API development, and deep understanding of the ecommerce world combined with my dedication to clean code-writing and effective deployment through CI/CD pipelines- collaborating for this project would be a beneficial move for both parties involved.

@chiragardeshna

Hi there, I am a strong fit because I have architected and maintained ecommerce backends with complex cart logic, payment integrations, and multi-role workflows. I have built catalog, variant, inventory, checkout, refund, and seller onboarding systems, including secure webhook handling and edge-case pricing logic in payment-heavy environments. I would propose Node.js with NestJS or Django, PostgreSQL for transactional integrity, Redis for cart/session handling, Razorpay SDK with verified webhooks, Docker-based deployment, and CI with automated test coverage and OpenAPI documentation. I reduce risk by separating cart and pricing engines into testable services, enforcing role-based access control from day one, validating Razorpay flows in sandbox before production, and targeting 80 percent coverage on critical paths. Estimated MVP timeline is 6 to 8 weeks depending on KYC complexity, and I am ready to begin immediately after aligning on scope and milestone definitions. Regards Chirag

@bhartimalu

Hello, I can handle your commerce backend development and ongoing maintenance — including API development, database design, server-side logic, integrations (payments, inventory, order workflows), and performance/security improvements. I’ll ensure your backend stays scalable, secure, and easy to update, with clean code, proper version control, and clear documentation. Ready to start and support your backend development and maintenance needs. Regards, Bharti

@arshig8

Hello, With extensive experience in API and backend development, I am the ideal fit for your e-commerce project. Combining my technical skills in Node.js, PHP, and frameworks such as Laravel with my previous work in e-commerce and payment-heavy projects, I guarantee a streamlined, secure and scalable system that can handle high-volume transactional data. In terms of technology stack, I propose using Node.js for its exceptional scalability and real-time capabilities along with MongoDB for flexible schema designs to optimize search performance. For containerization and CI we can take advantage of Docker and Jenkins respectively to establish a reliable deployment pipeline. Well-documented Swagger/OpenAPI specifications will make it easier for your frontend teams to interact with the backend services. By entrusting your project to me you're not only getting a capable backend developer but also a solution-focused problem solver who readily adapts to emerging technologies and invests time in continuous improvements. My commitment extends beyond an MVP; I'm ready to handle your maintenance needs as we scale ensuring lasting success for you ecommerce platform. Let's embark on this journey together! Thanks, Arshiya

@rahulb058

Hi, This sounds like the kind of backend ownership role I usually step into when teams are building commerce platforms meant to scale beyond MVP. I’m comfortable taking full responsibility for the server-side architecture, shipping the first production release, and then staying on for performance tuning, new feature development, and operational stability as volume grows. Here’s how I’d approach it: Proposed Tech Stack • Language & Framework: Node.js (TypeScript) with NestJS or Python with FastAPI — both give strong structure, DI, and testability. I’d lean NestJS for long-term maintainability in large commerce systems. • Database: PostgreSQL for transactional integrity + Redis for caching, sessions, cart state, and rate limiting. • Search: Elasticsearch / OpenSearch (if catalogue scale demands advanced filtering & search speed). • Payments: Razorpay SDK + REST APIs with webhook signature validation and idempotent payment handling. • Storage: AWS S3 (or compatible) for KYC docs & product assets. • Auth & RBAC: JWT + refresh tokens, role scopes for buyers, sellers, admins. • Containerisation & CI/CD: Dockerised services, GitHub Actions / GitLab CI for tests + deploy pipelines. • Infra (MVP): AWS / DigitalOcean with autoscaling readiness (Kubernetes optional post-MVP).

@abdf2010

Hi there, I'm reaching out about your e-commerce backend development and maintenance project. It sounds like you're looking for a seasoned developer to take full ownership of the server-side engine, from architecting a clean API for the entire buyer journey to building out the seller pathway, and then staying on for ongoing maintenance as you scale. That's a comprehensive role I'm very comfortable with. My background is deeply rooted in building robust e-commerce backends using PHP and Node.js, coupled with MySQL and PostgreSQL databases. I've spent years designing scalable API layers that power complex buyer and seller flows, including everything from inventory management and KYC verification to secure payment processing and post-purchase returns. I understand the importance of well-documented code and a maintainable architecture for long-term growth. I'd be happy to connect for a quick chat to discuss your specific vision for both the buyer and seller experiences. We could explore the initial architectural approach and how best to lay a solid foundation for your platform's success.