I will develop backend api using nodejs nestjs mongodb sql and ai

Build scalable, secure, and production-ready backend APIs using Node.js, NestJS, MongoDB, SQL, and AI integrations.

I'm an experienced backend engineer with 6+ years of experience helping startups, SaaS businesses, and international clients build reliable backend systems, microservices, automation workflows, and modern APIs that are designed for real-world scalability.

Whether you need to build a backend from scratch, improve an existing system, fix complex bugs, integrate AI features, or optimize performance, I can help turn your requirements into clean and maintainable solutions.

What I can help you with:

• Node.js, NestJS, Express.js backend development
• REST API & microservices architecture
• MongoDB, PostgreSQL, MySQL database design
• Authentication & authorization (JWT, OAuth, social login)
• AI integrations (OpenAI/Gemini/Claude and more)
• Payment gateway integrations
• Third-party API integrations
• Email, SMS, notifications, and communication systems
• Backend debugging, optimization, and refactoring
• Scalable SaaS and enterprise backend systems

I focus on clean architecture, honest communication, fast understanding of requirements, and long-term maintainable code.