I will integrate rest API or fix API issues in your web application

S
sudipto_sarker3
S
sudipto_sarker3
Sudipto S
integrate rest API or fix API issues in your web application
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integrate rest API or fix API issues in your web application
Full Screen
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integrate rest API or fix API issues in your web applicationintegrate rest API or fix API issues in your web applicationintegrate rest API or fix API issues in your web application

About this gig

Need to connect a payment gateway, SMS service, map, social login, or any other API to your app?


I'm a Senior Full-Stack Engineer with 9+ years of experience integrating third-party services into production applications including payment gateways used by millions of users.


APIs and services I integrate:

Payment gateways Stripe, PayPal, bKash, Nagad, SSLCommerz

Authentication Google, Facebook, GitHub OAuth, Auth0

SMS / Email Twilio, SendGrid, Firebase

Maps Google Maps API, Mapbox

Storage AWS S3, Azure Blob Storage

Any REST or GraphQL API (I read documentation fast)

Webhook setup and handling

OpenAI / Gemini AI API integration


I work with:

ASP.NET Core (C#) backends

React / Next.js frontends

Full-stack .NET + React apps


You get:

Clean, working integration

Error handling and retry logic

Secure API key management

Full explanation of how it works


Message me with the API name and your tech stack I'll confirm I can do it.

  • Programming language

    • C#

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases
    • Testing procedures

  • Frontend framework

    • Next.js

  • Backend framework

    • Next.js
    • Node.js

Get to know Sudipto S

Sudipto S

Senior Software Engineer

  • FromBangladesh
  • Member sinceApr 2022
  • Avg. response time18 hours

  • Languages

    Bengali, English
I’m a Senior Software Engineer with 9+ years of experience building and fixing production software. I specialize in C#, ASP.NET Core, React, REST APIs, microservices, SQL Server, gRPC, and Azure. I help clients solve bugs, improve performance, and build clean, scalable applications with clear communication and reliable delivery.

Other Software Development Services I Offer

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