AI applications & platforms

• AI Citizen Assistant – Municipality of Legrad (2026)

  Trilingual (HR/HU/EN) citizen assistant answering questions about local-government services, with every answer source-cited and linked to the exact official document. Public-sector deployment, EU-hosted. RAG, multi-LLM, GCP.

• Manufacturing BI Platform (2026)

  Dashboards turning ERP data into management analytics across production, warehouse, sales and procurement — drill-down by worker, work-order, product and operation, with automatic anomaly detection and KPIs for leadership. Python data pipeline, SQL, interactive dashboards.

• Energy Efficiency RAG Platform – VIREAS (2024–2025)

  Agentic RAG system providing renewables and energy efficiency guidance for citizens, developed for a regional energy agency. FastAPI + LangGraph, Weaviate hybrid search, reranking, multi-LLM support. Includes a Prefect ETL pipeline and MCP server for Claude Desktop integration. Live Site

• Medical Transcription System (2025)

  Desktop app for Croatian medical dictation across specialties: real-time transcription with auto-typing, specialty vocabularies, templates and global shortcuts — saving clinicians hours of documentation daily. Gemini AI, GCP deployment.

AI & business-process automation

• Automated Offer Generation (2026)

  Reads incoming technical specs (Excel/PDF), auto-extracts each line item, matches it to a product and price from the client's catalogue, and drafts a ready-to-send quote — turning hours of manual work into minutes. Confidence scoring, human-in-the-loop approval, full audit trail. Built for technical industry; EU-hosted. Document AI, catalogue matching, LLM.

• BOM Extraction System (2025)

  Automated Bill of Materials extraction from German-language manufacturing documents, with multi-format output (Excel/PDF/JSON). Reduced a 3–4 hour manual process to minutes. Document-extraction AI, LLM parsing.

• Text-to-SQL Data Retrieval (2025)

  Fully local, off-grid system (no data leaves the premises): users ask in natural language, the system generates a safe query over a local knowledge base and returns the answer instantly — clean table, chart, and one-click Excel export, with no SQL or reporting-team wait. Built for industrial manufacturing. LangGraph, open-source LLMs, Plotly.

• Automated Content Generation (2025)

  Blog automation with an 8-node LangGraph workflow and web-research integration, a custom Gemini fine-tuning pipeline, and an N8N video pipeline for TikTok/Reels. LangGraph, Gemini fine-tuning, N8N.

Web & full-stack platforms

• Construction Coordination Platform (Q4 2025)

  Web app replacing a manual Excel process for the construction sector: coordinates all stakeholders, contracts and documentation, and tracks build progress and financials, with Excel/PDF export. Cut record-search time from 10–15 minutes to under 30 seconds. FastAPI, React 19/TypeScript, PostgreSQL, GCP Cloud Run.

• SmartWay Design Portal (2025–2026)

  Full-stack e-content platform for an electrical-engineering design company. Content store with bank-transfer payment flow, newsletter system with block editor serving two brands, GDPR-compliant admin dashboard. React 18/TypeScript, Firebase, Tailwind CSS. Live Site

Consulting & education

• Banking Sector AI Consulting – HPB d.d. (2025)

  Series of strategic AI workshops for the management board and senior leadership at Croatia's national-level bank — covering AI opportunities, risks, and concrete applications in banking.

• Pharmaceutical AI Consulting & RAG PoC – Belupo d.d. (2024–2025)

  AI strategy consulting and education for the R&D department and directors (2025). Earlier RAG chatbot proof-of-concept for 160+ medication PDFs using LangGraph, Weaviate hybrid search, multi-LLM support (2024).

Infrastructure & systems

• Linux Network Infrastructure (2026)

  Linux-based network infrastructure for centralized device-fleet management: automated traffic routing, secure remote access (VPN), and reliability services with automatic failover and 24/7 monitoring.

See all projects → techxflow.eu

• StudyBuddy Educational App (2023)

  Full-stack AI study assistant implementing OCR-to-Q&A workflows before ChatGPT offered similar multimodal capabilities. Photo upload → OCR → AI-generated Q&A pairs with context-aware follow-up conversations.

  • Backend: Flask/Gunicorn REST API, Google Cloud Vision OCR, OpenAI GPT for Q&A generation, ChromaDB RAG, Firestore, Firebase Auth with role-based access
  • Frontend: Flutter cross-platform app (iOS, Android, Web, macOS, Linux, Windows), multi-language support (EN/DE/HR/HU)
  • GitHub Repository
• Chatbot RAG Demo (2024) – FastAPI backend for web-based chat with Firebase Auth, Firestore, WebSockets, LLamaIndex RAG.
• Machine Learning Manual (2024) – Structured ML methodology based on Kaggle's Titanic dataset. GitHub
• Flutter OpenAI App (2023) – GPT Chat, Whisper, and DALL-E integration. GitHub
• Robotic Arm System (2019) – Raspberry PI with Python GUI for Fischertechnik robotic arm control. GitHub
• Home Automation (2020–2021) – ComfortClick-based system with integrated security (DSC) and adaptive heating via KNX/Modbus.
• Environmental Monitoring (2020) – Raspberry PI webserver for temperature, humidity, and PM2.5/PM10 visualization.