I will build a scalable backend API with node js or golang


About this gig
Need a backend that is fast, secure and ready for real users? I'm a full-stack engineer with 3 years building production systems for US startups (Empowerverse, Socialverse, Persist Ventures) and the founder of MeriBaari, a multi-tenant WhatsApp SaaS.
What I build:
- REST APIs in Node.js (Express) or Go
- Database design with PostgreSQL, MySQL, MongoDB or Redis
- Authentication: JWT, OAuth, role-based access
- Third-party integrations: payments, WhatsApp, email, webhooks
- Deployment on AWS with Docker
What you get:
- Clean, documented source code
- API documentation (Postman or Swagger)
- Clear updates while I work
- A working deployment, not just a zip file
Not sure which package fits? Message me before ordering with a short description of your project and I'll reply with a plan and an honest estimate.
Get to know Sachin
Full Stack Engineer, Go, Node, React, AWS
- FromIndia
- Member sinceSep 2026
Languages
Hindi, English
My Portfolio
FAQ
Do you work with an existing codebase?
Yes. I can add features, fix bugs or refactor an existing Node.js, Go or PHP backend. Share the repo or a short description first so I can check the scope.
Will you deploy the API for me?
Yes, deployment on AWS with Docker is included in the Premium package. For Basic and Standard I deliver the code and clear setup instructions, and can add deployment as an extra.

