I will build ai web apps, chatbots, and llm integrations

W
wethumlansakara
W
wethumlansakara
Wethum L
build ai web apps, chatbots, and llm integrations
Full Screen
build ai web apps, chatbots, and llm integrations
Full Screen
build ai web apps, chatbots, and llm integrationsbuild ai web apps, chatbots, and llm integrations

About this gig

Looking for an AI-powered web application, chatbot, or LLM integration?


I can build and integrate practical AI solutions using Python, FastAPI, React, JavaScript/TypeScript, PostgreSQL, and modern AI APIs such as OpenAI, Claude, and Gemini.


I can help you with:

AI web applications and SaaS features

AI chatbot and conversational interfaces

OpenAI, Claude, Gemini, and LLM API integration

RAG chatbots for PDFs and private documents

Python/FastAPI backend and REST APIs

React frontend development

PostgreSQL/database integration

Authentication and user accounts

Existing AI app debugging and improvements

Custom AI features and automation


I focus on clean, maintainable code, practical solutions, clear communication, and reliable delivery.


Please message me before ordering for larger or custom projects so we can confirm the requirements, scope, price, and delivery time.

  • Application Type

    • Web Application

  • AI Type

    • Chat
    • Shopping
    • Booking
    • Education
    • Productivity Tools
    • E-commerce
    • Custom
    • IoT
    • Gaming

  • Programming Language

    • C++
    • Java
    • JavaScript
    • PHP
    • Python
    • TypeScript
    • React
    • SQL

  • Web Frameworks

    • React
    • Flask
    • Next.js
    • Other

  • Desktop Frameworks

    • Electron
    • React Native for Web
    • PyQt
    • Kivy
    • Tkinter

  • No & Low-Code Builders

    • Bubble
    • Lovable
    • Replit

Get to know Wethum L

Wethum L

AI, Python Developer, FastAPI, RAG, Web Development

  • FromSri Lanka
  • Member sinceSep 2025
  • Avg. response time1 hour

  • Languages

    Sinhala, English
Hi! I’m a Python and AI developer focused on building practical web applications, APIs, AI integrations and machine learning solutions. I work with Python, FastAPI, React, REST APIs, AI/LLM integrations, RAG systems and automation. I can help with: • Python and FastAPI backend development • REST API development and integration • AI chatbot and LLM integration • RAG and document Q&A systems • React web application development • Python scripts and automation • Bug fixing and backend troubleshooting • Machine learning projects I focus on clean code, clear communication and reliable delivery.

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