I will build rest apis and API integrations in asp net core or node js

P
piyushkhatri968
P
piyushkhatri968
Piyush Khatri
build rest apis and API integrations in asp net core or node js
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build rest apis and API integrations in asp net core or node js
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build rest apis and API integrations in asp net core or node jsbuild rest apis and API integrations in asp net core or node jsbuild rest apis and API integrations in asp net core or node js

About this gig

Need a secure, fast backend for your web or mobile app, or need to connect your system with a payment gateway or another third-party service? I build clean, well-documented REST APIs with ASP.NET Core or Node.js.


I'm a software engineer working on a production enterprise SaaS platform built on ASP.NET Core microservices, where I design endpoints, database schemas and optimized SQL queries every day.


What I can build:

- Backend services for web and mobile apps

- JWT authentication and role-based access

- Payment gateway integration

- Third-party integrations (email, maps, social login, CRMs)

- Database design with SQL Server, MySQL or MongoDB

- Swagger documentation

- Fixes and improvements to existing backends


How I build:

- Clean Architecture and SOLID principles

- Input validation, error handling and logging

- Idempotent endpoints for payments and critical actions

- Optimized queries for fast responses


What you get:

- Full source code with clear documentation

- Postman collection for easy testing

- Deployment help on IIS or VPS


Message me with your requirements before ordering so I can recommend the right package.


  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Security
    • Databases

  • Programming language

    • ASP.NET

  • Backend framework

    • Express.js
    • Node.js

Get to know Piyush Khatri

Piyush Khatri

Full Stack Developer

5.0(9)
  • FromPakistan
  • Member sinceSep 2022
  • Last delivery5 months

  • Languages

    Urdu, English, Chinese, German
Hi, I'm Piyush Khatri, a Full-Stack Developer providing freelance development services since 2021. I specialize in ASP.NET Core, C#, Angular, React, Node.js, Express.js, SQL Server, MySQL, MongoDB, and TypeScript. I build full-stack web applications, MERN stack solutions, REST APIs, admin dashboards, and business applications. I also help with database design, API integrations, performance optimization, bug fixing, and feature development. My focus is on delivering clean, scalable, secure, and reliable solutions.

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