I will develop rest apis and integrate third party apis

T
thushanthan1202
T
thushanthan1202
Thushanthan
develop rest apis and integrate third party apis
Full Screen
develop rest apis and integrate third party apis

About this gig

Need a reliable backend developer to build scalable custom REST APIs or seamlessly integrate third-party APIs into your web or mobile application?


I build secure, high-performance API architectures and connect complex external servicesfrom payment processors to custom AI workflows. Whether you need a fresh backend framework, webhooks setup, or optimization of slow database queries, I deliver clean, well-documented code.


Services I Offer:

  • Custom RESTful API development with Node.js/Express or Python/FastAPI
  • Third-party API integration (Stripe, PayPal, OpenAI, Twilio, Google Maps, SendGrid, Shopify, HubSpot)
  • Secure Authentication & Authorization (JWT, OAuth 2.0, Clerk, Firebase)
  • Webhook implementation and real-time data processing
  • Database ORM integration (Prisma, Mongoose, SQLAlchemy, Supabase)
  • API performance optimization, caching (Redis), and rate limiting
  • Complete interactive API documentation (Postman / Swagger)

Tech Stack I Use:

  • Languages: JavaScript, TypeScript, Python
  • Backend Frameworks: Node.js, Express.js, FastAPI, Flask
  • Databases: PostgreSQL, MongoDB, Supabase, Redis


Tools: Postman, Swagger/OpenAPI, Docker, Git

  • Expertise

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

  • Programming language

    • TypeScript

  • Frontend framework

    • Angular
    • Next.js
    • React.js
    • Tailwind CSS
    • Vue.js

  • Backend framework

    • Express.js
    • FastAPI
    • Flask
    • Next.js
    • Node.js

Get to know Thushanthan

Thushanthan

Full Stack Web Developer , Software Developer , AI Integration Engineer

5.0(3)
  • FromSri Lanka
  • Member sinceDec 2022
  • Avg. response time1 hour
  • Last delivery3 years

  • Languages

    Tamil, Sinhala, English
Hi! I’m Thushanthan, a MERN Stack Developer with 3+ years of experience turning ideas into high-quality web applications. I specialize in building SaaS platforms, responsive web apps, and transforming Figma designs into fully functional applications. I’ve successfully delivered projects across industries like ecommerce, fintech, food delivery, healthcare, and travel, helping businesses scale and streamline operations. My focus is on clean, maintainable code, fast performance, and seamless user experiences, ensuring your vision becomes a reality.

My Portfolio

Other Software Development Services I Offer

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