Suraj Yadav
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Node.js Backends

Custom Node.js Development

I engineer powerful backend architectures using Node.js and Express.js. From building secure RESTful APIs to real-time data processing, I ensure your application runs smoothly under heavy loads.

The Backbone of Your Application

While the frontend dictates the user experience, the backend determines the reliability, scalability, and security of your business. Node.js is uniquely equipped to handle concurrent requests efficiently, making it the ideal choice for modern web and mobile applications.

I specialize in building Node.js backends that don't just "work," but are engineered to scale. By employing asynchronous, event-driven architectures, I ensure that your application remains responsive even during traffic spikes.

Database Design and Optimization

A backend is only as fast as its database. Whether modeling document stores in MongoDB with Mongoose or designing strict relational schemas in PostgreSQL, I ensure that data is structured for optimal query performance and scalability.

I implement advanced techniques such as database indexing, connection pooling, and Redis caching layers to drastically reduce latency and load on the primary database, resulting in lightning-fast response times.

What my Node.js development covers

  • Custom RESTful and GraphQL API development with Express.js
  • Database schema design and optimization (MongoDB, PostgreSQL)
  • Secure authentication and authorization (JWT, OAuth)
  • Real-time bidirectional communication via WebSockets (Socket.io)
  • Integration with third-party APIs (Stripe, Twilio, AWS, etc.)

Security & Best Practices

Security is not an afterthought. Every backend I deploy includes robust protection against common vulnerabilities like SQL injection, XSS, and CSRF. Data inputs are strictly sanitized and validated, and sensitive information is always encrypted.

I also write comprehensive unit and integration tests using Jest or Mocha, ensuring that business logic remains flawless across iterations and updates.

Who this is for

Startups needing a robust backend for their mobile app or web platform. Companies looking to transition from monolithic architectures to microservices. Any business that requires a reliable, secure, and scalable API. Based in Delhi, India, I build scalable backends for clients globally. Start at hire a Full Stack developer or the contact form.

Frequently asked questions

Do you build RESTful APIs?
Yes, building well-structured, secure, and documented RESTful APIs using Express.js is one of my core specialities. I ensure proper authentication, rate limiting, and error handling.
What databases do you typically work with?
I extensively use MongoDB (NoSQL) for highly flexible data structures and PostgreSQL (SQL) when strict relational integrity is required. I also utilize Redis for caching and session management.
How do you handle authentication and security?
I implement secure authentication flows using JWT (JSON Web Tokens), OAuth 2.0, and passport.js. Security best practices like password hashing (bcrypt), CORS configuration, and data validation (Joi/Zod) are standard in my builds.

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Suraj Yadav Logo

Full Stack Developer with 4+ years of experience building scalable web applications using React.js, Next.js, Node.js, TypeScript, MongoDB, and PostgreSQL. Skilled in developing end-to-end solutions, optimizing performance, and delivering reliable, user-focused applications.

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