I will develop rest api, graphql api and third party api integration

M
muhammadwaqasrw
M
muhammadwaqasrw
Muhammad Waqas
develop rest api, graphql api and third party api integration
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develop rest api, graphql api and third party api integration
Full Screen
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develop rest api, graphql api and third party api integrationdevelop rest api, graphql api and third party api integrationdevelop rest api, graphql api and third party api integration

About this gig

I build APIs other developers can actually work with, and connect systems never designed to talk to each other.


10 years of enterprise integration - banking platforms, healthcare systems, IoT device data, BI tools and compliance software.


WHAT I BUILD

- REST API development, versioned and documented

- GraphQL API design and implementation

- Third-party API integration of any service

- Payment gateway integration: Stripe, PayPal

- CRM, ERP and marketing tool integrations

- Webhook handling with retries and idempotency

- Authentication: OAuth2, JWT, API keys, RBAC

- Rate limiting, caching and pagination

- API migration, versioning and deprecation

- OpenAPI and Swagger documentation


INTEGRATION IS MOSTLY EDGE CASES

The happy path takes a day. The timeout, the duplicate webhook, the partial failure and the schema change take skill. I build for those first.


STACK

Java, Spring Boot, Node.js, Python, FastAPI, Django, REST, GraphQL, OAuth2, Postgres, MySQL, MongoDB, Redis, Kafka, Docker, AWS


Message me with what needs to connect to what.


  • Expertise

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

  • Programming language

    • Java

  • Frontend framework

    • Angular
    • AngularJS
    • jQuery
    • Next.js
    • React.js

  • Backend framework

    • Django
    • Express.js
    • FastAPI
    • NestJS
    • Next.js

Get to know Muhammad Waqas

Muhammad Waqas

AI Agent Engineer, Head of AI Product Dev, Enterprise Architect

5.0(20)
  • FromPakistan
  • Member sinceMay 2019
  • Avg. response time1 hour
  • Last delivery2 years

  • Languages

    Urdu, English
I build AI agents and enterprise systems that work in production, not just demos. Head of AI Product Development at DTCForce. I architected Scopien, an autonomous agentic platform that runs Salesforce operations end to end. Before that, 10 years as a Principal Engineer and Architect in banking, healthcare and compliance. Architected a healthcare platform serving 1M+ users, and led NielsenIQ work that cut delivery cycles 70%. AI: LangGraph, MCP servers, OpenAI, Claude, RAG Backend: Java, Spring Boot, Node, Python, React, microservices, AWS/GCP Message me with the problem and I'll scope it.

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