Alex Csillag

Alex Csillag

Master's Student | Control Systems | Numerical Methods

Pursuing a Master's degree in Intelligent Control Systems at Sapientia EMTE. Focused on numerical methods, control-oriented modeling, and reliable engineering software for dynamical systems.

About Me & Experience

I'm a graduate-level engineering student working at the intersection of control systems and numerical analysis. My interests include discretization of PDEs, observer design, and simulation of dynamical systems that connect theory with practical implementations.

Work Experience

Laboratory Technician

Sapientia EMTE - Department of Electrical Engineering

Târgu Mureș, MS, Romania

📅 March 2025 - Present

Summer Internship - Robotics Engineering

Codespring

Quadrupedal robot control using reinforcement-learning-based methods in ROS 2 (Python, TensorFlow/TensorForce)

📅 July 2023 - September 2023

Mentor Program - Full-Stack Web Development

Codespring

Full-stack web development mentorship (.NET, TypeScript, Angular, PostgreSQL)

📅 December 2022 - June 2023

Summer Internship - Backend Development

Invenshure Hungary LLC

Back-end development in Python (Flask, SQLAlchemy)

📅 August 2022

Summer Internship - IT Support & Networking

PS Computers, Poly Szaki S.R.L.

Computer repair, maintenance, and networking (Gheorgheni, Harghita)

📅 July 2022 - August 2022

Education

Academic foundation in engineering principles and advanced control systems

Master of Science in Intelligent Control Systems

Sapientia Hungarian University of Transylvania (EMTE)

Târgu Mureș, MS, Romania

📅 September 2024 - Present

Bachelor of Science in Automation and Applied Informatics

Sapientia Hungarian University of Transylvania (EMTE)

Târgu Mureș, MS, Romania

📅 September 2020 - July 2024

Baccalaureate Diploma - Mathematics and Informatics

Liceul Teoretic "Salamon Ernő"

Gheorgheni

📅 September 2016 - June 2020

Languages

  • 🇭🇺 Hungarian - Native
  • 🇬🇧 English - C1 Advanced (CAE: 182/230)
  • 🇷🇴 Romanian - Baccalaureate Diploma

Projects

Recent work in numerical methods, control systems, and scientific computing

Intelligent Kinematic Control of Quadrupedal Robots

Developed and analyzed kinematic control algorithms for quadrupedal mobile robots, including trajectory generation and stability considerations. Published at IEEE SISY 2024 in Pula, Croatia, co-authored with advisors and team members. First place at KTDK 2024 and nominated for National SSC 2027.

🎖️ DOI: 10.1109/SISY62279.2024.10737619 | 1st Place KTDK 2024

Control Theory Kinematics Python ROS

Observer Design for Allen-Cahn Reaction-Diffusion Systems

Studied state estimation for Allen-Cahn reaction-diffusion PDEs, with emphasis on observer structure, numerical discretization, and convergence properties. Supervised by dr. Lőrinc Márton and dr. Áron Fehér. First place at KTDK 2025 and nominated for National Student Research Conference (OTDK) 2025.

🎖️ 1st Place KTDK 2025 | Nominated for OTDK 2025

PDEs Observer Design Numerical Analysis Control Theory

Quadruped Robot Simulation with Reinforcement Learning

Built simulation environments and numerical experiments for quadrupedal locomotion using reinforcement-learning-based controllers in ROS 2. Focused on evaluation metrics, training stability, and reproducible experimental setups.

ROS 2 Python TensorFlow Simulation

QuizMIT - Discord Bot Quiz Game

Developed interactive Discord bot implementing a quiz game for university-level competitions. Won 1st place at Hall of Fame Contest and used to manage timed rounds, scoring, and persistent data.

🎖️ 1st Place - Hall of Fame Contest | View on GitHub

Python Discord.py Bot Development

Publications & Conferences

Research results and conference presentations

📰 Publications

Intelligent Kinematic Control of a Quadrupedal Mobile Robot

IEEE 22nd International Symposium on Intelligent Systems and Informatics (SISY 2024)

Authors: Alex Csillag, dr. László Dávid, dr. Lőrinc Márton, Endre Györfi, Zsolt Köllő

Location: Pula, Croatia

🔗 DOI: 10.1109/SISY62279.2024.10737619

📅 2024

🎤 Conference Presentations

National Student Research Conference 2025 (OTDK 2025)

Thesis: "Intelligent Control of Quadrupedal Mobile Robots"

Section: Electronic and Computing Devices, Embedded Systems 1

📅 2025

Scientific Student Conference 2025 (KTDK 2025)

Thesis: "Observer Design for Allen-Cahn Reaction-Diffusion Systems"

Ranking: 🥇 1st Place | Section: Informatics and Software Development

Status: Nominated for National SSC 2027

📅 2025

Scientific Student Conference 2024 (KTDK 2024)

Thesis: "Design of Algorithms for the Motion of a Quadruped Mobile Robot"

Ranking: 🥇 1st Place | Section: Hardware Development and Embedded Systems

📅 2024

Engineering Scientific Student Conference (MTDK)

Thesis: "Design of Algorithms for the Motion of a Quadruped Mobile Robot"

Section: Electrical Engineering

Status: Nominated for National SSC 2027

📅 2024

Technical Skills

Tools, languages, and methods used in my work

🐍 Programming Languages

  • Python (Numerical Computing & Scripting)
  • MATLAB/Simulink
  • TypeScript & JavaScript
  • C/C++ (Embedded Systems)
  • LaTeX & Markdown

📊 Numerical Methods & Control

  • Discretization of PDEs
  • Observer Design
  • Linear Control Systems
  • Kalman Filtering
  • Stability and Convergence Analysis

🤖 Robotics & Simulation

  • Quadrupedal Robot Modeling
  • Simulation of Locomotion
  • Kinematics & Dynamics
  • Gait Generation Algorithms

📈 Data Analysis & Visualization

  • Matplotlib & Seaborn
  • Spatial Statistics (Moran's I)
  • Clustering (DBSCAN, K-Means)
  • Scientific Visualization

🔧 Development Tools & Frameworks

  • Git & Version Control
  • Jupyter Notebooks
  • ROS & ROS 2
  • .NET & Angular Web Framework
  • TensorFlow (for RL experiments)
  • Discord.py & Bot Development
  • PostgreSQL & Database Design
  • Unit Testing & Validation

Get In Touch

Interested in discussing numerical methods, control systems, robotics projects, or research collaboration? Feel free to reach out.