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sergiyclas/README.md

Hi 👋, I'm Serhiy Dzen

AI Software Engineer

LinkedIn LeetCode Email


🧑‍💻 About Me

  • 💼 Building multi-agent systems and GraphRAG pipelines as an AI Software Engineer at GlobalLogic
  • 🎓 Studying Computer Science at Lviv Polytechnic National University
  • 🏅 Microsoft Certified: Azure AI Engineer Associate – GenAI, NLP, Computer Vision
  • 🧩 260+ problems solved on LeetCode (87 easy / 154 medium / 19 hard)
  • 🔍 Currently digging into agent orchestration, retrieval quality and local inference
  • 🚀 Previously founded Nevek – an OCR/CV tool that cut visual-content translation time by 75%
  • 📄 Check out my detailed Resume / CV

🛠 Languages and Tools

Languages
Python JavaScript SQL

AI & Machine Learning
LangGraph LangChain MCP A2A RAG PyTorch OpenCV OpenAI Llama

Backend & Data
FastAPI Flask SQLAlchemy Pandas NumPy aiogram

Databases
PostgreSQL Neo4j MySQL MongoDB SQLite

Cloud & DevOps
Azure AWS Docker GitHub Actions n8n Camunda

Tools
Git Postman Swagger Colab Figma


📌 Selected Projects

Project Description Stack
citegraph-copilot GraphRAG assistant over an 800-paper arXiv citation graph. Three agents over A2A, tools over MCP, human approval before the graph is mutated LangGraph · Neo4j · A2A · MCP
retrieval-arena Retrieval benchmark that runs in CI without an API key: IR metrics, bootstrap intervals and significance tests Python · BEIR · sentence-transformers
local-docs-assistant Fully offline RAG over your own documents, with a benchmark comparing local models on the same corpus Ollama · Chroma · FastAPI
ai-inbox-triage Ticket triage that routes what it is confident about and asks a human when it is not n8n · FastAPI · LLM tool use
grid-outage-planner Power grid outage scheduler: CIM XML topology, load forecasting and a priority queue over affected customers Python · Gradio · NetworkX
cocktail-rag-chatbot RAG chatbot answering from a vector index of 425 recipes, with retrieved sources shown in the UI FastAPI · LangChain · FAISS

📊 GitHub Stats

GitHub Streak

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  1. citegraph-copilot citegraph-copilot Public

    GraphRAG research assistant over the arXiv citation graph - LangGraph orchestration, A2A microservices, MCP tools, Neo4j

    Python 1

  2. ai-inbox-triage ai-inbox-triage Public

    Mailbox assistant with a human in the loop: n8n polls IMAP, Claude summarises and drafts replies, a risk policy decides what may be sent without you

    Python 1

  3. local-docs-assistant local-docs-assistant Public

    Privacy-first local RAG assistant: chat with your documents fully offline via Ollama, with per-model benchmarks

    Python 1

  4. retrieval-arena retrieval-arena Public

    Retrieval benchmark that runs in CI without an API key: 4 strategies over BEIR corpora, scored with IR metrics, bootstrap intervals and paired significance tests

    Python 1

  5. banking-api-platform banking-api-platform Public

    Banking REST API: Flask + MySQL with JWT auth, Swagger docs, triggers/stored procedures and Docker deployment

    Python 1

  6. anki-quick-add anki-quick-add Public

    Chrome extension: type or select a word and get a complete Anki card (translation, IPA, examples, audio, image) from the LLM provider of your choice

    TypeScript 1