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00x808080/README.md

Sergey Gonchar

I build applied AI software in Python and C++, with a focus on computer vision, native model inference, and LLM-based applications. I study Artificial Intelligence at Johannes Kepler University Linz and am interested in bringing AI into practical software and industrial systems.

Featured project: SmartSpray Vision Controller

SmartSpray Vision Controller connects crop/weed detection to a deterministic eight-channel spray-command simulation.

The project combines Python model fine-tuning and evaluation with native C++17 inference using OpenCV and ONNX Runtime. The native application runs without Python, PyTorch, or a GPU.

Engineering work includes model evaluation, Python/C++ inference-consistency checks, explicit input contracts, automated tests, and versioned model artifacts. A saved demonstration shows predictions, selected targets, and the resulting command schedule.

Camera geometry and actuation are simulated; this is an independent portfolio project, not a field-deployed or real-time control system.

Explore the project · Release v0.1.0

Current focus

  • Applied AI and computer vision applications in Python and C++
  • Native model inference, evaluation, and integration into software systems
  • Clear interfaces, automated testing, and reproducible workflows

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

  • Languages: Python, C++17.
  • Applied AI / Computer Vision: PyTorch, Ultralytics YOLO, OpenCV, ONNX, ONNX Runtime, object detection, model evaluation.
  • Software engineering: CMake, CTest, Python unittest, pytest, typed Python, Ruff/Pyright, pre-commit, Git, Linux; Protocol Buffers, graph algorithms, parsing, and parallel algorithms. SmartSpray uses Python unittest and CTest; pytest belongs to earlier projects.
  • Applications / integrations: LLM APIs, LangGraph, async HTTP, external APIs, SQLite, PDF/DOCX/XLSX processing.

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 288

  2. smartspray-vision-controller smartspray-vision-controller Public

    Native C++ crop/weed detection and deterministic eight-channel spray-command simulation, with Python training and ONNX validation.

    Python

  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-transport-catalogue cpp-transport-catalogue Public

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

    C++

  5. 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++