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Macszym/README.md

Maciej Szymański

Third-year Computer Science and Artificial Intelligence student at AGH University of Kraków. Actively looking for an internship in backend systems, ML/AI, or data engineering.

Featured

  • stock-market-simulator — Go REST API simulating a tiny stock exchange. Postgres-backed, Caddy + N replicas behind a load balancer with chaos-test failover, single-transaction audit log, full CI on Linux/macOS/Windows. Rendered API docs.
  • postin-iot — Smart mailbox: ESP32 firmware (C, ESP-IDF, MQTT) talking through a Python MQTT↔Firebase bridge to a React + TypeScript dashboard and a Kotlin Android app. Custom drivers for AHT20 temperature/humidity and VL53L7CX time-of-flight sensors.
  • medical-appointment-system — Full-stack medical visit scheduling app. React + TypeScript + Material UI on the frontend, Node.js + Express + MongoDB + JWT on the backend. Patient / doctor / admin roles, weekly calendar, doctor ratings, appointment CRUD.
  • dapl-compiler — Interpreter for DAPL, a small statically-typed language for tabular-data manipulation. Built with ANTLR4 in Python. Course project at AGH (Compiler Theory & Compilers).

Other public projects

  • reservo — ASP.NET Core 9.0 MVC web app for booking firm resources, with EF Core, SQLite, role-based access, and a key-authenticated REST API. Co-authored with Mateusz Sobiech.
  • machine-learning-labs — Thirteen labs from AGH's ML course: regression, classification, tree-based methods, and deep learning (Keras/TensorFlow, CNNs, RNNs).
  • graph-neural-networks-coursework — Three assignments from AGH's Deep and Graph Neural Networks course: tabular ML with SHAP, YOLOv8 on aerial imagery, RNN/BERT for emotion classification.
  • computer-vision-labs — Six labs from AGH's Advanced Vision Algorithms course: edge & feature detection, background segmentation (ViBe/BSUV-Net), optical flow, and tracking (MOSSE + SiamFC).
  • data-engineering-labs — Six projects from AGH's Data Engineering course: pandas, JSON/CSV handling, spatial data, time series, and SQL window functions.

Contact

LinkedIn

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  1. stock-market-simulator stock-market-simulator Public

    REST API simulating a tiny stock exchange — Go 1.26 + Postgres, Caddy + N replicas with chaos failover, single-transaction audit log

    Go

  2. dapl-compiler dapl-compiler Public

    Interpreter for DAPL — Data Analysis Programming Language. Built with ANTLR4 in Python. Course project at AGH (Compiler Theory & Compilers).

    Python

  3. data-engineering-labs data-engineering-labs Public

    Six projects from AGH's Data Engineering course — pandas, JSON/CSV parsing, spatial data, time series, SQL window functions

    HTML

  4. machine-learning-labs machine-learning-labs Public

    Thirteen labs from AGH's Machine Learning course — regression, classification, ensembles, and deep learning with Keras/TensorFlow

    Jupyter Notebook

  5. medical-appointment-system medical-appointment-system Public

    Full-stack medical visit scheduling — React + TypeScript + Material UI, Node.js + Express + MongoDB, JWT auth, role-based access

    TypeScript

  6. postin-iot postin-iot Public

    Smart mailbox IoT system — ESP32 firmware (C/ESP-IDF), MQTT↔Firebase bridge, React+TS dashboard, Kotlin Android app. End-to-end stack with custom sensor drivers.

    C