Node.js API Backend Development

@mrresearcher99

Hi there, I’ve gone through your project and would be glad to help. With 10+ years of experience in Node.js, I specialise in building fast, scalable, and secure backend systems and RESTful APIs. You’ll get clean architecture, real-time performance, and clear communication throughout the process. Let’s connect and take your project forward! Best, Bhargav Node.js Developer | 10+ Years Experience

@NawaazJasat

We are a perfect match-Your search is over I see you need a backend developer proficient in Node.js for your web application, prioritizing clean setup, database design, API implementation, and testing. With extensive experience in building scalable RESTful APIs in Node.js, I ensure a seamless integration with your front-end and robust authentication protocols. For a similar project, I developed a Node.js API with PostgreSQL database integration, focusing on clean code and efficient error handling. To fulfill your requirements, I propose the following steps: 1. Set up a well-organized project structure in Node.js 2. Design database schema and models tailored to your needs 3. Implement core API routes as outlined, with detailed documentation using Swagger 4. Ensure reliability through comprehensive unit and integration testing While new to this platform, I bring years of expertise, ensuring punctuality, effective communication, and client satisfaction. Let's Chat—I'm ready to start and make your web application a success.

@malkesh3m

⭐ Hi, My availability is immediate. I read your project post on Node.js API Backend Development. We are experienced full-stack Python developers with skill sets in - Python, Django, Flask, FastAPI, Jupyter Notebook, Selenium, Data Visualization, ETL - React, JavaScript, jQuery, TypeScript, NextJS, React Native - NodeJS, ExpressJS - Web App Development, Data Science, Web/API Scrapping - API Development, Authentication, Authorization - SQLAlchemy, PostegresDB, MySQL, SQLite, SQLServer, Datasets - Web hosting, Docker, Azure, AWS, GPC, Digital Ocean, GoDaddy, Web Hosting - Python Libraries: NumPy, pandas, scikit-learn, tensorflow, etc. Please send a message So we can quickly discuss your project and proceed further. I am looking forward to hearing from you. Thanks

@decipherzone111

Hello there, I can build your backend API layer in Node.js with Express, implementing scalable RESTful endpoints, PostgreSQL schema design, authentication/authorization, error handling, and Swagger documentation. I’ll also set up unit and integration tests to ensure reliability as the app grows. I have 11 years of experience delivering robust backend systems with Node.js, PostgreSQL, and secure APIs, ensuring clean project structures and well-documented code. To proceed: 1. Do you already have an ERD or should I propose the database schema based on the specs? 2. Any specific authentication method you prefer (JWT, OAuth, or session-based)? I can share relevant API projects and provide a timeline and milestone plan once I review the specs. Best regards.

@gauravl3

Hello , Your project sounds like an excellent fit for my skills. I specialize in building scalable backend APIs with Node.js and have delivered production-grade solutions for SaaS and marketplace platforms. My strength lies in designing clean architectures, optimized PostgreSQL schemas, secure authentication flows, and well-documented APIs that are easy to maintain and extend. Here’s how I’d approach your project: • Set up a solid Node.js project structure (Express/Fastify, service-based architecture) • Design PostgreSQL schema & models for scalability • Build core RESTful endpoints with validation, error handling & role-based auth • Document everything with Swagger/OpenAPI for clarity • Ensure reliability with unit & integration tests (Jest/Supertest) Proposed Milestones: 1️⃣ Project setup & schema design 2️⃣ Core API routes + authentication/authorization 3️⃣ Swagger docs & integration testing 4️⃣ Final QA, deployment guide & handover Why Hire Me: ✔️ Proven Node.js + PostgreSQL experience on live SaaS platforms ✔️ Clean, well-commented code and full documentation ✔️ Responsive, proactive communication with a focus on delivering value ✔️ Strong track record of meeting deadlines and exceeding expectations I’d be happy to walk you through similar APIs I’ve built and discuss how we can move quickly milestone by milestone. Best regards, Gaurav

@misraanu

Hi there, My name is Anupam, I have gone through your requirement and found that my skillset's matches it. I have 15+ years of development experience which enable's me to work on this project seamlessly in teams or individually, I am good with working on client's machine using remote connecting software's or via source control. Let's connect to discuss more. Regards, Anupam.

@techstar12

I can take full ownership of your backend API layer in Node.js. I’ll set up a clean Express (or Fastify if you prefer higher throughput) project structure, design a normalized PostgreSQL schema with models, and implement your core routes with proper authentication, authorization, and error handling. All endpoints will be documented via Swagger/OpenAPI, and I’ll add unit/integration tests (Jest or Mocha/Chai) so reliability is baked in from the start. In past projects I’ve built REST APIs for SaaS apps and marketplaces handling multi-tenant auth, complex relational queries, and performance tuning for scale. My focus is on clarity—modular controllers, service layers, and consistent error responses—so the codebase is easy to extend as new features arrive. Do you want this API structured purely as REST, or should I consider GraphQL if your front end might benefit from flexible queries? And will user auth be JWT-based, or should I integrate with an existing identity provider (Auth0, Cognito, etc.)?

@softgoway

Dear Hiring Manager, I am excited to apply for the opportunity to take full ownership of the backend API layer for your new web application. With strong expertise in Node.js/Express and PostgreSQL, I have built and scaled RESTful APIs that are secure, reliable, and easy to integrate with modern frontends. My focus is always on writing clean, well-documented, and maintainable code. In my past projects, I have designed and delivered backend systems handling thousands of requests per minute. Challenges such as optimizing database queries, implementing robust authentication/authorization (JWT, OAuth2, RBAC), and building modular architectures were solved with a focus on scalability and security. I also integrate Swagger/OpenAPI for clear API documentation and write unit/integration tests with Jest/Mocha to ensure long-term stability. For your project, my approach would be: Establish a clean and modular Node.js project structure. Design an efficient PostgreSQL schema aligned with the business logic. Implement core RESTful endpoints with validation and structured error handling. Provide clear API documentation for seamless frontend integration. Deliver automated test coverage to maintain quality as the app grows. I am confident that my experience, problem-solving ability, and collaborative approach make me a strong fit. I’d be happy to discuss your frontend specs and align on the architecture before milestones are set. Best regards

@vaneetgarg412

Hi, If you're looking for someone to own the backend — not just write endpoints, but architect clean, scalable, and secure APIs that stand the test of growth — I’m ready to hit the ground running. I specialize in building backend systems in Node.js (Express, Fastify) with PostgreSQL, and I thrive on projects where I can take full responsibility — from setting up project structure and DB schema design to implementing RESTful endpoints, authentication, authorization, and comprehensive test coverage. I document everything with Swagger, and I treat clean code and reliability as non-negotiables.. Here’s how I’d approach your project: Scaffold a clean, scalable Node.js backend with proper module separation Design a relational DB schema optimized for flexibility (PostgreSQL + Prisma or Sequelize) Build versioned RESTful APIs with robust validation, error handling & JWT-based auth Document everything using Swagger (OpenAPI) Test thoroughly with unit/integration tests (Jest, Supertest) to ensure confidence as we scale If you’d like to see code samples or past API projects I’ve led, I’d be happy to walk you through them. Let’s build something solid — and fast. Best, Vaneet

@andreasf18

Hello, I specialize in Node.js backend/API development and can take full ownership of building your RESTful layer. My approach includes: Setting up a clean project structure in Express.js. Designing scalable PostgreSQL schemas & models (or suggesting alternatives if needed). Building secure API routes with proper auth, error handling, and validation. Documenting endpoints via Swagger/OpenAPI. Adding unit & integration tests for reliability. I’ve previously developed APIs for SaaS platforms, booking systems, and IoT apps, where I solved challenges like performance optimization, secure authentication (JWT/OAuth2), and database scaling. I’d be glad to share relevant code samples and discuss architecture before milestones.

@alexa665

Hello! I’m an experienced backend developer with a strong background in Node.js, Express, and PostgreSQL. I can design and implement a scalable RESTful API layer, covering authentication, authorization, error handling, and clean database modeling. I’ll also document everything with Swagger and include robust unit/integration tests. Having built similar backend services for SaaS and mobile applications, I understand the importance of clean architecture, performance, and security. I’d be happy to share examples of previous API projects I’ve delivered.

@BiancaS123

I am a perfect fit for your project as an experienced backend developer proficient in Node.js. I will create a clean, scalable API with seamless integration to your specified database, implementing thorough testing for reliability. While I am new to freelancer, I have tons of experience and have done other projects off site. I have successfully designed and coded API endpoints in Node.js, with a focus on clean, well-commented code and efficient project structuring. I am confident in my ability to take full ownership of your backend API layer, ensuring a professional and user-friendly experience. I would love to chat more about your project! Regards, Bianca Steenkamp

@saeedf8288

Hello. Three ways to tackle your backend API requirements: 1) Set up a modular Node.js project structure using Express with clearly separated controllers, services, and models to ensure maintainability. 2) Design a normalized PostgreSQL database schema optimized for scalability, with indexes and constraints to maintain data integrity. 3) Implement RESTful endpoints with authentication/authorization, thorough error handling, and automated tests; document the API with Swagger for easy front-end integration. We are a team experienced in building robust Node.js backends for web applications handling complex data and user management. In a recent project, we designed and deployed a REST API that handled over 50,000 daily requests with zero downtime and full test coverage, improving response times by 35%. You can trust us to deliver a clean, scalable, and fully tested API backend that integrates seamlessly with your front end and grows reliably as your application scales. Thank you.

@jesseb31

I’m an expert Node.js backend engineer (Express/NestJS) with strong PostgreSQL experience and a track record delivering production REST APIs that scale; on recent projects I built API platforms that handled tens of thousands of daily requests and reduced end-to-end response times by up to 40%. I’ll take full ownership of your API layer: project structure, schema, auth/authorization, documented routes, and test coverage—so your front end can integrate reliably and you can iterate quickly. My straight-forward approach (what I’ll deliver and how we’ll work): • Project bootstrapping — create a well-organised repo, linting, Git branches, Docker dev env, and CI pipeline (GitHub Actions) so builds/tests run automatically. • Clean architecture & models — design the DB schema (Postgres) with migrations (Knex/TypeORM/Prisma per your preference), indexes and FK constraints, plus an ER diagram and data dictionary. • Secure auth & authorization — implement JWT/OAuth flows, refresh tokens, role-based access control middleware, and secure password handling (bcrypt/argon2). • API endpoints & docs — implement the core REST routes, input validation (Joi/Zod), standardized error handling and pagination; document everything with OpenAPI/Swagger and example requests/responses.

@mlkrisenum

Hello, I specialize in building scalable Node.js backends and can take full ownership of your API layer. My experience includes designing RESTful endpoints, integrating PostgreSQL schemas, and implementing authentication/authorization with clean error handling. For your project, I’d set up a modular project structure (Express/Nestjs/alternatives), design an optimized schema, implement/document APIs with Swagger, and add unit/integration tests for reliability. I’ve delivered similar API projects where performance, security, and maintainability were key, and I follow a clear, well-documented coding style. Happy to walk you through my approach and past API builds once we connect. Best regards, Fiaz

@lesleyr1

Hello, my name is Lesley Roberts, a web developer experienced in building responsive and high-performing websites specializing in Node.js. I've worked on a range of projects from small business sites to full-scale applications, ensuring clean, maintainable code and timely delivery. I can seamlessly take ownership of your backend API layer, designing scalable RESTful endpoints, database integration, and handling authentication and error-handling effectively. My approach includes setting up the project structure in Node.js, designing the database schema, implementing API routes, and writing comprehensive tests for reliability. My previous work showcases API projects in Node.js, highlighting problem-solving abilities and clean coding practices. I'm eager to discuss your project's specifics and propose a tailored approach for seamless execution. Let's collaborate to achieve your backend goals efficiently.

@SavanUnagar

Hello , I hope you're doing well. I came across your project and it truly aligns with my skills and experience. I have the ability and confidence to complete this work efficiently and with full dedication. I genuinely request you to give me a chance. I'm committed to delivering quality results, and I won’t disappoint you. Looking forward to working with you. Warm regards, Savan Unagar

@AdityaNandwana19

Hi, I’ve built scalable Node.js backends with PostgreSQL, handling authentication, authorization, and high-throughput APIs. For example, I migrated a monolithic Node.js app to Go/Node.js microservices, cutting response times by 95%, and also built APIs powering dashboards for 1,000+ daily users with PostgreSQL and Redis. For your project, my approach would be: Setup: clean Express project structure with middleware for auth, logging, and error handling. Database: PostgreSQL schema design with indexes and constraints for reliability. APIs: REST endpoints built per spec, documented with Swagger/OpenAPI. Testing: unit + integration tests (Jest) to keep the codebase stable as it scales. I keep code well-documented and maintainable, with CI-friendly workflows. Could you share whether JWT-based auth is your preference, or should I propose an alternative? Thanks, Aditya 9699497009

@avdhesh46

Hello, I’ve read your requirements carefully and I’m confident I can take full ownership of building the backend API layer for your web application. With over 9 years of experience in web and mobile development, I’ve worked extensively with Node.js, Express, PostgreSQL, and scalable API design. API Development: Designed and implemented RESTful APIs for MIS, LMS, ERP, and WMS systems handling thousands of users. Database Design: Created optimized database schemas in PostgreSQL and MySQL, ensuring high performance and data integrity. Authentication & Authorization: Integrated JWT and OAuth2.0-based authentication flows with role-based access control. Documentation: Used Swagger/OpenAPI for clear API documentation and Postman collections for testing. Testing & Reliability: Implemented unit tests (Jest/Mocha) and integration tests to ensure reliability and easy scaling. Error Handling: Built standardized error handling and logging for smooth debugging and maintenance. ✅ My Approach for Your Project Project Setup – Initialize a clean Node.js/Express structure with environment-based configuration. Database Schema Design – Create optimized models in PostgreSQL (or recommend alternatives if beneficial). Core API Routes – Develop secure, scalable REST endpoints based on your specs. Looking forward to collaborating and delivering a robust backend for your application. Best regards, Avdhesh Kumar Gupta

@thesumitghosh

I’ve carefully read your order requirements and I see exactly what you’re aiming for. Rather than offering you a “one-size-fits-all” solution, I’d like to propose something tailored to your goals. Here’s my approach for your project: I will first understand your exact vision so that every detail reflects your expectations. Then, I’ll create a solution that is practical, creative, and scalable, ensuring it works now and grows with your needs. Throughout the process, I’ll provide regular updates so you’re always in control. I already did these kinds of projects earlier many times. I am ready to do any kind of web design & development project by given time limit with 100% accuracy and perfection. Your Satisfaction is my ultimate goal.