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stefan1condeescu/README.md

Hi, I'm Stefan Condeescu

Final-year Economic Informatics student based in Bucharest, focused on Python, data analytics, machine learning, web applications, and database-backed systems.

I enjoy building practical software projects that combine data, clean application logic, and useful workflows. My current interests include machine learning, AI, web development, object-oriented software design, and relational database systems.

What I'm focused on

  • Python applications for data, analytics, automation, and ML prototypes
  • Machine learning, feature engineering, and model evaluation
  • SQL, PL/SQL, and relational database design
  • Web application development with REST APIs, JWT authentication, and backend/frontend integration
  • API testing and workflow validation with Postman
  • Object-oriented software design in Java, including UML, BPMN, and GoF design patterns
  • AI agents and LLM-based workflows through the Hugging Face AI Agents course

Tech stack

Languages: Python, Java, C/C++, SQL, PL/SQL, SAS, JavaScript
Data & ML: pandas, NumPy, scikit-learn, statsmodels, Streamlit, Plotly, Altair
Databases: PostgreSQL, Oracle SQL, SQLite
Web & APIs: Node.js, Express, React basics, Vite, REST APIs, JWT, Postman
Testing: unittest, JUnit, API testing with Postman
Developer tools: Git, GitHub, VS Code, IntelliJ IDEA, PyCharm, Visual Studio, Eclipse, npm
Deployment & environment: Render, Docker, venv, pip, requirements.txt
Modeling & design: UML, BPMN, object-oriented design, GoF design patterns

Featured projects

MacroSense

Bachelor thesis project built with Python, Streamlit, PostgreSQL, pandas, and scikit-learn.

It focuses on nutrition, activity, and weight tracking, with dashboard analytics, calorie balance, recommendation cards, and ML-based weight prediction.

The repository is currently private while I prepare a cleaner public version with safe demo data, screenshots, and setup instructions.

Global Freight Transport Analytics

Streamlit dashboard for exploring global air and rail freight patterns.

Includes data cleaning, preprocessing, missing-value handling, outlier detection, interactive visualizations, K-Means clustering, linear regression, and logistic regression.

View repository

Oracle Maritime Transport DBMS

Oracle SQL and PL/SQL project for a maritime passenger transport database.

Includes relational schema design, constraints, representative SQL queries, views, indexes, PL/SQL procedures/functions, packages, triggers, and audit logging.

View repository

PresenceBoard

Full-stack QR-based attendance tracker for classes, workshops, and recurring sessions.

Built with React, Express, Sequelize, SQLite/PostgreSQL, JWT authentication, QR check-in, duplicate protection, and CSV export.

View repository

Education

BSc in Economic Informatics
Faculty of Cybernetics, Statistics and Economic Informatics, Bucharest
2023 - 2026

Relevant coursework: Object-Oriented Programming, Java, Software Quality, GoF Design Patterns, Databases, Data Structures, Web Technologies, Statistics.

Certifications & languages

  • Oracle Academy - Database Design and Programming with SQL
  • Oracle Academy - Database Programming with PL/SQL
  • IELTS Academic - Overall Band 8.0
  • Cambridge FCE - C1 level

Languages: Romanian native, English advanced

Currently improving

  • Full-stack web development through more complete project workflows
  • AI agents and LLM application patterns through the Hugging Face AI Agents course
  • Cleaner software architecture and system design fundamentals
  • Production-ready documentation, testing, and deployment habits

Contact

Popular repositories Loading

  1. presenceboard-attendance presenceboard-attendance Public

    QR-based attendance tracker for classes, workshops, and recurring sessions, built with React, Express, Sequelize, and PostgreSQL.

    JavaScript

  2. remote-app-update-system remote-app-update-system Public

    A Python TCP client-server system that demonstrates remote application downloads, version tracking, and automatic update delivery.

    Python

  3. global-freight-transport-analytics global-freight-transport-analytics Public

    Streamlit dashboard for exploring global air and rail freight patterns with World Bank-style data, interactive visualizations, preprocessing, clustering, and regression models.

    Python

  4. bank-marketing-sas-analytics bank-marketing-sas-analytics Public

    End-to-end SAS analytics workflow for a bank marketing campaign dataset, including preprocessing, SQL analysis, reporting, visualization, and logistic regression.

    SAS

  5. eur-gbp-time-series-analysis eur-gbp-time-series-analysis Public

    Time series analysis of the EUR/GBP exchange rate in the Brexit period, using ARIMA/SARIMA forecasting and VAR-based macroeconomic dynamics.

    Python

  6. oracle-maritime-transport-dbms oracle-maritime-transport-dbms Public

    Oracle SQL and PL/SQL database project for maritime passenger transport, with relational schema, DBMS extension, triggers, packages, and audit logging.

    PLSQL