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I will build ai automation workflows and integrate llms into your business

C
crystaliumhr
C
crystaliumhr
Antun N.
build ai automation workflows and integrate llms into your business
Full Screen
build ai automation workflows and integrate llms into your business

About this gig

not toy demos. Clear communication, clean code, and on-time delivery guaranteed.by integrating LLMs (GPT-4, Claude, Gemini) into your existing tools, databases, and business processes.


What I deliver:

  • LLM integration into your app or internal tools
  • - Automated workflows triggered by events, schedules, or user input
  • - RAG pipelines (Retrieval-Augmented Generation) with your own data
  • - AI agents that can browse, decide, and act autonomously
  • - Prompt engineering, fine-tuning, and model evaluation

  • Tech stack: Python, Node.js, TypeScript, LangChain, OpenAI API, Anthropic API, Pinecone, PostgreSQL, AWS Lambda.

  • I've built AI systems for real products I build custom AI automation workflows that save your team hours every week

  • AI engine

    • GPT

  • Programming language

    • JavaScript
    • Python
    • TypeScript

Get to know Antun N.

Antun N.

Full Stack Developer and AI Expert

  • FromCroatia
  • Member sinceJun 2026

  • Languages

    English
I am a full-stack developer and founder of Crystalium, a software agency based in Sibenik, Croatia. With 10+ years of experience, I build custom web applications, e-commerce platforms, and AI-powered tools for clients across Croatia and the EU. My stack includes Next.js, React, TypeScript, Node.js, Python, and PostgreSQL. I specialize in web development, AI integration (OpenAI, Anthropic, LangChain), and custom software solutions. I take pride in clean code, clear communication, and delivering real results.

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