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00x808080/README.md

Sergey Gonchar

Early-career Python Software Engineer in Upper Austria, focused on API integrations, document-processing systems, and applied LLM applications. I study Artificial Intelligence at Johannes Kepler University Linz.

Current focus

  • Python software engineering with typed, testable modules
  • Backend foundations, APIs, and integration workflows
  • Applied AI systems built around LLM APIs, retrieval, and structured outputs

Selected engineering work

  • Tender qualification — private client project: built a modular Python pipeline for PDF, DOCX, and XLSX ingestion, OCR fallback, LLM-assisted classification and structured extraction, domain decision rules, and Excel/JSON outputs. Uses typed interfaces, pytest, Ruff, Pyright, and pre-commit.
  • AI sales assistant — private collaborative project: contributed to an open, unmerged development branch covering aiogram/LangGraph routing, RAG retrieval, async RetailCRM integration, human handoff, and tests.

Open source

Selected public projects

  • Transport Catalogue — Yandex.Practicum C++ course project with JSON I/O, graph routing, SVG rendering, and Protocol Buffers serialization.
  • Spreadsheet — Yandex.Practicum C++ course project with formula parsing, dependency tracking, cycle detection, and recalculation caching.
  • Search Server — Yandex.Practicum C++ course project with TF-IDF ranking and parallel processing using Intel TBB.

Technology

Python, typing, pytest, Ruff/Pyright, async HTTP and external APIs, SQLite, PDF/DOCX/XLSX processing, LLM APIs and LangGraph; C++17, CMake, Protocol Buffers, graph algorithms, parsing, and parallel algorithms.

Contact

LinkedIn

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  1. fnnx-ai/scikit-llm fnnx-ai/scikit-llm Public

    Seamlessly integrate LLMs into scikit-learn.

    Python 3.5k 287

  2. cpp-transport-catalogue cpp-transport-catalogue Public

    Yandex.Practicum C++ course project: JSON transport catalogue with graph routing, SVG rendering, and Protocol Buffers serialization.

    C++

  3. cpp-spreadsheet cpp-spreadsheet Public

    Yandex.Practicum C++ course project: spreadsheet engine with parsed formulas, dependency tracking, cycle detection, caching, and recalculation.

    C++ 2

  4. cpp-search-server-engine cpp-search-server-engine Public

    Yandex.Practicum C++ course project: TF-IDF document search with filtering and parallel processing using Intel TBB.

    C++