I will develop, integrate, and optimize rest or graphql apis for your app

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alex_jev
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alex_jev
vorin E

About this gig

Your API is broken, slow, or missing entirely I fix that.


With 5+ years of backend engineering experience, I specialize 

in building bulletproof REST APIs, seamless third-party 

integrations, and webhook systems that just work.


I OFFER:

1. Custom REST & GraphQL API development

2. Third-party integrations (Stripe, OpenAI, Twilio, Google API)

3. Webhook setup & event-driven architecture

4. JWT & OAuth2 secure authentication

5. API documentation (Swagger & Postman)

6. Legacy API refactoring & performance optimization

7. Backend deployment (AWS, Heroku, Railway)


WHY TRUST ME?

5+ years building production-grade APIs

Delivered 50+ integrations across fintech, SaaS & e-commerce

Clean, documented, scalable code always

On-time delivery with clear communication


WHAT I'VE BUILT:

Payment systems using Stripe & PayPal

AI-powered apps integrated with OpenAI API

Real-time notification systems via Twilio & webhooks

E-commerce backends with Shopify & custom REST APIs


CURRENTLY WORKING ON:

AI agent APIs using OpenAI & LangChain

High-performance FastAPI microservices


Don't let a broken API cost you clients.

Message me now let's build something powerful.

Get to know vorin E

vorin E

Tech Innovator

  • FromUnited States
  • Member sinceJan 2026
  • Avg. response time1 hour
  • Languages

    English
I specialize in modern JavaScript frameworks, backend APIs, databases, cloud-ready architectures, and Shopify development. I’ve built SaaS platforms, custom Shopify stores and apps, real-time dashboards, automation tools, browser extensions, and complex third-party integrations. I focus on clean architecture, performance, security, and user experience to deliver reliable, business-driven solutions.

Other Software Development Services I Offer