I will build a custom ai chatbot with langchain and your data

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Devinda Dilshan

About this gig

Need AI that actually understands your business?


Generic models like ChatGPT lack context and hallucinate. I build Custom AI Solutions that securely interact with your private data to solve real business problems.


What I Offer:

  • Custom RAG Chatbots: Bots that read your documents (PDF, CSV, SQL) and answer accurately without making things up.
  • Autonomous AI Agents: Smart agents that can browse, scrape, and interact with APIs to automate tasks.
  • End-to-End Development: From data cleaning pipelines to full-stack deployment.


My Tech Stack:

  • Core: Python, LangChain, LlamaIndex, OpenAI (GPT-4o), Gemini, Claude.
  • Infrastructure: Vector DBs (Pinecone, ChromaDB), Docker, AWS, Google Cloud.


Why work with me?

  • Business-First: I build solutions focused on ROI, not just code.
  • Scalable: Clean, modular architecture ready for production.
  • Full Support: Guidance from concept to cloud deployment.


Please contact me before placing an order so we can discuss your specific requirements.

Get to know Devinda Dilshan

Devinda Dilshan

Software Engineer

  • FromSri Lanka
  • Member sinceJan 2026
  • Languages

    Sinhala
I am a motivated Computer Science & Engineering undergraduate at the University of Moratuwa and strong expertise in full-stack development, machine learning, algorithms, and data structures. I have a proven track record in building scalable web applications and AI-driven tools.