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$
USD
I will build a python fastapi backend for your ai application
Irfan Khalid
About this gig
Need a reliable backend for your app or AI project? I build clean, production-ready Python FastAPI backends with AI integration, database connectivity, and documented APIs.
What I can build:
- REST APIs with FastAPI (endpoints, validation, authentication)
- AI integration using Ollama, Hugging Face, OpenRouter, and Llama models
- RAG systems with LangChain or LlamaIndex that answer questions from your documents
- AI workflows and automations with n8n
- Database setup and connectivity
What you get:
- Clean, organized code
- API documentation
- Support after delivery
Packages:
- Basic: simple API with basic endpoints
- Standard: adds database and AI integration
- Premium: adds authentication, RAG, and full documentation
Model fine-tuning is available as an extra. You provide the data and requirements.
Before ordering, message me a short description of your project so I can confirm the scope and suggest the right package.
Get to know Irfan Khalid
Irfan Khalid
AI Engineer and Backend Developer
- FromPakistan
- Member sinceOct 2026
Languages
Urdu, English
I'm an AI Engineer specializing in Python, backend development, LLMs, RAG, and AI automation.
I build practical AI solutions including RAG systems, AI applications, FastAPI backends, LLM integrations, and automation workflows. I also have research experience in efficient machine learning and neural network optimization.
I focus on clean, reliable, and maintainable solutions that solve real problems. Whether you need an AI feature or a backend built from scratch, I can help turn your idea into a working solution.
FAQ
1. What do you need from me to get started?
A short description of your app, the features you want, and any existing code, database, or API details. For AI features, tell me which model or provider you prefer, or I can recommend one.
2. Which AI models and tools do you work with?
Ollama, Hugging Face, OpenRouter, and Llama models, with LangChain, LlamaIndex, and n8n for RAG and workflows. If you use something else, message me before ordering.
3. Can you build a RAG system on my documents?
Yes. Premium includes RAG so your app can answer questions from your own files. You provide the documents, and I handle the setup and integration.
4. Do you offer model fine-tuning?
Yes, as a paid extra. You provide a clean dataset, and I fine-tune a small or open-source model on it. Very large datasets may need a custom offer.
5. Will you help me after delivery?
Yes. I include documentation, and I'm available for questions and small fixes after delivery. Larger changes can be handled as a new order or custom offer.
