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Fiverr Pro
English
$
USD
I will develop fastapi backend rest apis and ai integrations
M Ahsaan Ullah
About this gig
Need a high-performance, asynchronous backend middleware for your web applications or database layers? I architect secure, production-grade FastAPI REST APIs integrated with resilient PostgreSQL databases, token-based JWT authentication, and clean structure optimized for extreme processing speed.
Whether you are scaling a dynamic pipeline, building a secure backend, or needing middle-tier architecture to connect frontends with custom systems, I write clean, asynchronous Python code built for execution reliability and zero data leaks.
What I Offer:
- Custom FastAPI RESTful API Development
- Secure JWT Token Authentication & Verification
- Relational Database Design & Syncing (PostgreSQL)
- Secure Third-Party API Gateway Integrations
- Performance Optimization & Clean Pydantic Schemas
Every backend script is built with strict type safety, clean asynchronous route definitions, and complete database connection pooling.
Let's build your core structural architecture with absolute data integrity. Message me with your system requirements today, and let's deploy your production backend!
Get to know M Ahsaan Ullah
M Ahsaan Ullah
AI Automation and Chatbot Expert
- FromPakistan
- Member sinceDec 2019
- Avg. response time1 hour
Languages
English, Urdu
I build AI systems that work in production —
not just demos.
Running a live WhatsApp AI SaaS with real
clients. Built AI agents using Claude & Gemini,
deployed on Google Cloud & AWS.
What I build for you:
✅ n8n automation workflows
✅ WhatsApp AI chatbots
✅ RAG chatbots from your documents
✅ Python automation scripts
✅ Serverless APIs on AWS Lambda
Fast delivery. Working systems. Clear communication.
Message me — let's build something real.
My Portfolio
FAQ
Q1: Do you follow standard security practices for database and authentication?
Ans: Yes! I implement strict token-based JWT (JSON Web Tokens) authentication workflows, secure password/data hashing using industry-standard libraries, and complete input data validation through Pydantic schemas to ensure protection against injection vectors.
Q2: Will I get complete source code access?
Ans: Absolutely. Every package includes the full, uncompiled, and well-structured Python source code with descriptive comments. This allows your frontend or deployment teams to take total control over the server environment.
Q3: What database engines do you optimize for?
Ans: I heavily optimize for relational database systems like PostgreSQL and MySQL, implementing efficient data connection pooling, clean CRUD query routing, and proper indexing for lightning-fast async request response handling.
Q4: Can you integrate custom AI models into the API?
Ans: Yes! I specialize in building custom endpoint orchestration wrappers that connect frontend apps directly with LLMs or computer vision models like ResNet18 or XceptionNet using secure, asynchronous Python pipelines.
