Junior Software Engineer | Java, Python & SQL | Backend, Data & Machine Learning | Master's Student in Database Systems

Based in Bucharest, Romania. I build practical software and data projects that combine application logic, relational databases, analytics, and machine learning.

Open to remote and hybrid junior roles and internship opportunities. Willing to relocate.

• Economic Informatics graduate from the Faculty of Economic Cybernetics, Statistics and Computer Science in Bucharest
• Master's student in Database Systems for Business
• Practical experience with Python, SQL, databases, data validation, and automated testing
• Recently contributed to the open-source Frictionless project
• Portfolio spanning backend and web development, relational databases, analytics dashboards, and applied machine learning

Python, SQLite, JSON, CSV

Worked with a SQLite database containing millions of IoT records collected from smart waste bins. I used Python to parse JSON data, convert timestamps, validate readings, identify unusual values and missing intervals, and generate CSV reports.

This was also where I became much more confident using Python in practice. I learned how to clarify tasks, research problems independently before asking for help, communicate regularly with my tutor, and improve working solutions through review.

SAGA

Worked with SAGA accounting software and gained practical experience with real business and accounting workflows. This also gave me a better understanding of how people use specialised software in their day-to-day work.

Languages: Java, Python, C/C++, SQL, PL/SQL, SAS, JavaScript, Bash
Backend, web & APIs: Node.js, Express, React, Vite, REST APIs, JWT, Postman
Databases: PostgreSQL, Oracle SQL, SQLite
Data & ML: pandas, NumPy, scikit-learn, statsmodels, Streamlit, Plotly
Engineering: Git, Docker, Render, unittest, JUnit, UML, BPMN, GoF design patterns

Python, Streamlit, PostgreSQL, pandas, scikit-learn

Personal application for nutrition, activity, and weight tracking, with analytics dashboards, a What-if simulator, automated tests, and machine learning weight predictions.

React, Node.js, Express, Sequelize, PostgreSQL, JWT

Full-stack QR attendance platform with organizer authentication, recurring events, duplicate protection, live attendance views, and CSV export.

Oracle SQL, PL/SQL, relational modeling, triggers, packages

Database project with constraints, queries, views, procedures, packages, capacity validation triggers, and audit logging.

Python, Streamlit, pandas, Plotly, scikit-learn

Analytics dashboard covering data preparation, interactive visualizations, outlier detection, clustering, and regression models.

Python, data validation, testing

Contributed a bug fix for schema/header mismatches that prevented redundant cell errors during validation. Added regression tests for validation and analysis workflows. Merged PR #1799

Master's Degree in Database Systems for Business (BDSA)
Faculty of Economic Cybernetics, Statistics and Computer Science
Bucharest University of Economic Studies | Sep 2026 - Jul 2028 (expected)

Bachelor's Degree in Economic Informatics
Faculty of Economic Cybernetics, Statistics and Computer Science
Bucharest University of Economic Studies | Sep 2023 - Jul 2026

Technical focus: software engineering, databases, data analysis, and machine learning.

• Oracle Academy - Database Design and Programming with SQL
• Oracle Academy - Database Programming with PL/SQL
• Cisco Networking Academy - JavaScript Essentials 1 & 2
• IELTS Academic - Overall Band 8.0
• Cambridge FCE - C1 level

Languages: Romanian native, English advanced

• Email: stefan.condeescu@gmail.com
• LinkedIn: linkedin.com/in/stefan-condeescu
• CV: Junior Software Engineer