Node JS, NestJS E-commerce Backend Development

@OutsourceMan

With an extensive 18-year background in web and app development, CnELIndia comes equipped to offer you a complete and refined solution to your e-commerce project. Our team's expertise spans across a multitude of technologies with an especial focus on JavaScript, Node.js, TypeScript and NestJS - justices the qualities sought for this project. We value the importance of clean code and test-driven development for a smooth sailing e-commerce platform. Having dealt with numerous such projects in the past, we have developed robust authentication, product catalog, cart/order management systems and implemented role-based designs just as you demand. We also have Docker-compose experience to facilitate hassle-free deployment throughout project iterations. Our knowledge extends further with automated deployment skills on Google Cloud Platform (GCP). For example, integrating systems like Keycloak, OAuth2, OpenID Connect shouldn't pose a challenge for us at all. Additionally, we are committed to providing detailed documentation ensuring clarity and ease in future usage/debugging of the codebase. Let's work together to bring your vision into reality!

@vishal1145

Your PostgreSQL schema will become a bottleneck if you're not planning for multi-vendor inventory conflicts and concurrent order processing from day one. Without row-level locking and proper transaction isolation, you'll see duplicate orders and inventory oversells once you hit 500 concurrent users. Before I architect the solution, I need clarity on two things: What's your expected transaction volume at launch - are we talking 100 orders per day or 10K? And does your role-based access need to support vendor-specific product visibility, or can all vendors see the entire catalogue? Here's the architectural approach: - NESTJS + POSTGRESQL: Build a modular monolith with separate bounded contexts for auth, catalogue, and orders - each with its own database schema and repository pattern to prevent tight coupling as you scale. - JWT + REFRESH TOKENS: Implement Redis-backed token blacklisting and sliding session windows to handle logout across devices without database hits on every request. - ROLE-BASED GUARDS: Create a CASL-based permission system that checks vendor ownership at the database query level, not in application logic, preventing privilege escalation bugs. - DOCKER + GCP: Set up Cloud Run with auto-scaling triggers and Cloud SQL connection pooling to handle traffic spikes without provisioning dedicated instances. - UNIT TESTS: Write integration tests against a Dockerized Postgres instance using testcontainers to catch schema migration issues before production. I've built 4 NestJS e-commerce backends that scaled from MVP to 50K daily orders. Let's schedule a 15-minute call to walk through your vendor workflows and payment integration requirements before I start development.

@arbu1499

I understand you need a scalable NestJS backend with PostgreSQL, covering auth (JWT + refresh), product/order workflows, and role-based access (admin/vendor/customer)—all structured cleanly with strong test coverage. I’ve built similar systems using modular NestJS architecture, guards/policies, and Dockerized setups, plus integrations with OAuth2/Keycloak and deployments on GCP. I can deliver a well-structured codebase with ≥90% test coverage, Postman-ready endpoints, and clear documentation for setup and scaling. Ready to jump in and move fast without compromising code quality. Looking forward for your positive response in the chatbox. Best Regards, Arbaz N

@ominfowave

Hi there, We are excited about the opportunity to work with you on developing your website. With strong experience in both front-end and back-end development, We can build a robust, scalable, and user-friendly platform that supports all the core features you’re looking for and tailored as per your requirement. Why Us? • 10+ years of experience in full-stack development • Built several website in all kind of domain platforms (portfolio available on request) • Strong grip on user flows, admin control, and clean UI/UX design • Expertise in PHP, JavaScript, MySQL, HTML/CSS, Laravel and modern frameworks Timeline & Estimate: Depending on final scope after the detail discussion with you We’d love to discuss your vision further and share relevant portfolio examples. Let’s build something powerful together! Looking forward to your response. Best regards, Vishal Nasit

@webmasters486

⭐⭐⭐⭐⭐ NestJS Backend Development for E-Commerce ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project and see you're looking for a clean, scalable NestJS backend with PostgreSQL for authentication, product management, shopping cart, and role-based workflows. Look no further; Muhammad Adil is here to assist you! I will build a modular, secure, and testable NestJS architecture with full PostgreSQL integration and cloud deployment support. ➡️ Why Me? I have delivered multiple NestJS projects with PostgreSQL, JWT-based auth, role-based access, and Dockerized deployments, ensuring maintainable and high-performance backends. ➡️ I’d love to discuss your current schema, authentication preferences, and role hierarchy so I can align the modules with your active project and Postman tests. I can also show examples of similar e-commerce backends I’ve built. ➡️ Skills & Experience: ✅ NestJS & Node.js Architecture ✅ TypeScript & JavaScript Development ✅ PostgreSQL Database Design & Integration ✅ JWT / Refresh Token Auth Flow ✅ Role-Based Access & Guards ✅ CRUD Endpoints for Products & Orders ✅ Docker & GCP Deployment ✅ Test-Driven Development & Unit Tests Waiting for your response! Best Regards, Muhammad Adil Portfolio: https://www.freelancer.com/u/webmasters486

@jignesh06

Hello, I have extensive experience in the mentioned technologies and am ready to start immediately. Let’s connect via chat to discuss the project requirements further. Thank you, Jignesh

@anjalihooda

Hello There ,I’ve built scalable backend systems using Node.js, TypeScript, and NestJS with a strong focus on clean architecture and maintainability. I can set up a well-structured NestJS project connected to PostgreSQL, implement secure JWT/refresh-token auth, role-based access (admin/vendor/customer), and develop all core e-commerce modules (products, cart, orders). I also have experience integrating OAuth/Keycloak-style systems and handling Dockerized setups and GCP deployments. I follow a test-driven approach, ensuring high coverage (90%+) and reliable, production-ready code that meets your Postman-based acceptance criteria. Happy to start immediately and build this with a clean, scalable foundation. Best Regards, Anjali Hooda

@malkesh3m

⭐ Hello there, My availability is immediate. I read your project post on Node JS, NestJS E-commerce Backend Development. 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

@kishanbwts

I’ve helped build scalable NestJS backends for e-commerce platforms before, setting up clean architectures connected to PostgreSQL that handled complex user roles and workflows smoothly. Starting with a solid NestJS scaffold is key, so I’ll focus on modular design to keep features like auth, product CRUD, and order management well separated yet efficient. For the auth module, implementing JWT with refresh tokens will secure user sessions, and I can assist integrating OAuth2 or Keycloak to extend flexibility. Role-based guards will enforce clear admin, vendor, and customer permissions without performance loss. I’ll also provide a Docker-compose setup for easy local development and streamlined GCP deployment. Do you have preferred patterns for error handling or logging in the backend? Also, should the product catalog support filtering or pagination from the start? I want to ensure the endpoints return exactly what your Postman tests expect and cover business logic thoroughly with unit tests hitting 90%+ coverage. The stack and requirements are familiar territory, so I’m ready to start building the foundation right away and deliver fast without cutting corners.

@technologiesit

As a seasoned backend developer with over a decade of experience, I believe I'm the missing piece you're striving to find for your e-commerce project. Mastering JavaScript, TypeScript and Node.js since their inceptions, I now confidently wield these tools to build cutting-edge, efficient solutions. Moreover, my skills extend deeply into the realm of web development including WordPress, Shopify and Laravel alongside APIs. Lastly, being certified WordPress Developers has ingrained in me the importance of providing concise yet comprehensive documentation. Thus, through thorough testing and clear setup instructions, we ensure smooth post-project transitioning for our clients. My ultimate goal is a satisfied client who sees his business thrive on our success stories together. Let's embark on this profitable journey for both parties. Thank you!

@techsty2014

Leverage my decade long experience in Web & Mobile App Development and deep understanding of Node.js, Javascript, TypeScript, and the NestJS framework to supercharge your e-commerce project. I relish the challenge of creating clean and scalable back-end architectures with high security and efficiency promises, which aligns perfectly with your requirements. Stallyons Technologies is known for making complex tasks simpler. I have an extensive knowledge of databases like PostgreSQL, MongoDB and have prior hands-on experience in implementing role-based access control layers as per your needs. In addition, my proficiency in using REST & SOAP APIs would be instrumental in integrating authentication systems like Keycloak and OAuth2, thereby ensuring utmost security for user data. I take immense pride in adopting a test-driven development approach which guarantees a thoroughly stable application. Another one of our strong suits is smooth Cloud deployments on GCP (Google Cloud Platform), thus ensuring that your application scales effortlessly. With me onboard, you can expect nothing less than impeccable coding ethics, 100% commitment to meet your expectations, and on-time delivery. Looking forward to a fruitful collaboration

@sumipundir01

Hi, I have completed many projects using the MERN Stack. I can do this job very well according to your needs. I will start immediately Thanks

@abdf2010

Hey, your project, Node JS, NestJS E-commerce Backend Development looks like a great fit for my skills. I've worked on similar JavaScript projects and can deliver solid results. Let me know if you'd like to chat about the approach.

@Srashtasoft

A Warm Hello! Your NestJS-based backend requirements align perfectly with my experience in building scalable, test-driven server architectures for e-commerce platforms. I’ve worked extensively with Node.js, TypeScript, NestJS, PostgreSQL, Docker, and cloud environments like GCP, so I can support both the foundational setup and the advanced role-based workflows you need. I can deliver: A clean, modular NestJS architecture connected to PostgreSQL with migrations. JWT + refresh-token authentication, ready for Keycloak/OAuth2/OpenID integration. Fully tested CRUD modules for products, carts, and orders. Role-based guards and policies for admin, vendor, and customer separation. Docker-compose setup for local development and CI pipelines. GCP deployment assistance (Cloud Run / GCE / Cloud SQL). Clear documentation and 90%+ coverage through unit tests. I prioritise clean code, predictable workflows, and smooth collaboration, ensuring the backend remains scalable as your e-commerce platform grows. Let’s set up a quick call to discuss things better. Let’s discuss it more in chat. Best Regards, Jemin Sagar

@rbtech1984

Hello There!!! ★★★★ (Scalable NestJS backend with secure auth and e-commerce workflows) ★★★★ I understand you need a clean NestJS backend with PostgreSQL, covering auth, product and order APIs, role-based access, and deployment support on GCP. The focus is on scalable architecture, test coverage, and clean maintainable code. Services mentioned here based on project details ⚜ NestJS scalable architecture setup with PostgreSQL ⚜ JWT auth with refresh tokens and RBAC guards ⚜ Product, cart, and order CRUD APIs ⚜ OAuth2 / Keycloak integration support ⚜ Docker-compose setup for local development ⚜ Unit testing with high coverage ⚜ GCP deployment assistance and documentation I have strong experience in Node.js, TypeScript, and NestJS, building production-ready APIs with clean structure and security best practices. Worked on similar ecommerce backend systems before. I’ll follow modular architecture, use TypeORM/Prisma, and ensure all endpoints tested and optimized. Ready to deliver fast but clean work. Let’s connect and get your backend solid and scalable. Warm Regards, Farhin B.

@chiragardeshna

Hi there, Strong alignment with this project comes from experience building scalable e-commerce backends using NestJS with clean architecture, PostgreSQL, and production-ready API design. Clear understanding of the requirement to set up a modular NestJS system with authentication, product/order workflows, role-based access, and secure integrations like OAuth2/Keycloak. Hands-on expertise ensures efficient schema design, JWT/refresh token flows, Dockerized setup, high test coverage, and smooth deployment on GCP. Risk stays controlled through clean code practices, validation layers, secure auth handling, and well-tested endpoints aligned with your Postman collection. Available to start immediately happy to discuss next steps and architecture. Recent work: https://www.freelancer.com/u/chiragardeshna Regards Chirag

@rahulb058

Hi, Your stack and project goals are perfectly aligned with my backend engineering experience. I can help build a clean and scalable NestJS architecture connected with PostgreSQL, then extend it into a production-ready e-commerce backend with authentication, product catalogue, cart, orders, RBAC, and deployment support. My delivery for phase one: Scalable NestJS modular project structure PostgreSQL integration with secure and optimized queries JWT + refresh token authentication flow Admin, vendor, and customer role-based guards CRUD APIs for products, cart, and order workflows Docker Compose setup for local development 90%+ unit test coverage with clean test cases Setup and deployment documentation Keycloak / OAuth2 / OIDC integration support GCP deployment assistance I focus strongly on clean code, test-driven development, performance, and maintainability, so the backend remains easy to scale as the platform grows. Since your project is already in active development, I can quickly align with the existing Postman collection, coding standards, and roadmap to start delivering modules fast without creating rework. Available to start immediately. Let’s connect once to align architecture boundaries and sprint priorities.

@pulkit0729

I understand you need a robust NestJS backend for your e-commerce platform, with PostgreSQL integration and features like authentication, product and order management, role-based access, and cloud deployment on GCP. I specialize in TypeScript and NestJS, with extensive experience building scalable, secure APIs and implementing JWT-based auth flows alongside OAuth2 and OpenID Connect. My approach emphasizes clean architecture, test-driven development, and comprehensive documentation. I will deliver a modular NestJS scaffold wired to PostgreSQL, fully tested endpoints matching your Postman specs, Docker-compose orchestration, and setup guides, all running smoothly on Node 18 LTS. I propose completing this within 3-4 weeks, ensuring high code quality and maintainability. Looking forward to collaborating and helping your e-commerce backend scale efficiently.

@webnsoftindia

E-Commerce Backend with NestJS & PostgreSQL Hello, I can develop and design a robust, scalable backend for your e-commerce platform using NestJS, Node.js, TypeScript, and PostgreSQL, ensuring secure, efficient, and maintainable code. I understand the need for clean architecture, role-based access, and seamless integration of authentication and order workflows. Features: • NestJS project scaffold with PostgreSQL integration • JWT/refresh-token authentication module • CRUD endpoints for products, orders, and shopping cart • Role-based access control for admin, vendor, and customer • Cloud-ready deployment support (GCP) & Docker-compose setup • Concise setup, run instructions, and unit-tested code Let’s connect to discuss timelines and implementation details. Thanks,