Ioannis Catselas

Institute of Aerospace Medicine: Sleep and human factors, Cognitive sciences – Title: "Detection of fatigue by machine learning methods based on human physiological data" Creation/Development of an End-to-End Pipeline:

• Data preparation and pre-processing of large event-time-based, behavioral and eye tracking datasets (220 Mio data points) -Python: Panda, NumPy, Flume
• Creating and developing relevant features through psychological phases and creating a feature vector for validating Probabilistic/Deep Learning Models
• Implementation, training, evaluating different models and performance visualization -Python: Scikit-learn, Tensorflow, Keras, PyTorch, XGBoost, PyEEG, MNE, Matplotlib, Seaborn
• Using cross-validation, hyperparameter tuning, feature importance, confusion matrix or ROC to enhance generalizability and accuracy

Computer Vision Project: Unbiased AI in Job Recruiting: Analyze facial features and expression - Goal: Fairer selection regardless of ethnicity

• Data pre-processing and preparation from an international survey - Python: Pandas, NumPy
• Adapting, Training and Testing of the Convolutional Neural Network (CNN); Using Hyperparameter-Tuning - Python: OpenCV, TensorFLow, Keras, PyTorch
• Focused on researching, designing and implementing state-of-the-art Neural Networks - DeepFace
• Using logarithmic functions, penalty-terms and applications of GANs to reduce bias for fairer job recruiting process
• Result Evaluation and Visualization - Python: Scikit-learn

Customer Engineering Functions/Software Division:

• Developing of Requirement Software through an AUTOSAR Software Tool (Python, Excel)
• Shell Scripting for Software Code (Python, Linux)
• Collaborating with international customers to define, prioritize and implement software requirements to ensure alignment with project goals

Motorsport Engineering - Software Architecture, Diagnostics and Networking Division

• CarPC-automated and cloud-based measurement data acquisition in vehicle, including online application (Control Unit, GUI, Python)
• Support/ troubleshooting and remote updates of vehicle with Python
• Motorsport-specific diagnostics and networking topics
• Creation of Cloud Pipeline (Architecture) for CarPC with Python and Linux
• Developing Python-based GUI applications for real-time signal visualization and analysis.

Title: Structure and integration of a battery simulation for an High-Voltage hybrid system

• Independent development and construction of a high-voltage test bench (HIL)
• Used coordination and planning skills to achieve hardware and software results according to schedule
• Commissioning of the CAN communication and integration of a battery simulation via Matlab & Simulink, Vector CANoe, C
• Control of the high-voltage component via C
• Adaption of a battery simulation model (Model-Based Programming, Matlab & Simulink)

• Development and Construction of a test bench for testing hybrid systems (48V) consisting of a control unit, battery, DC / DC converter, e-machine, inverter and axle drive, in particular the commissioning of the CAN communication of the hybrid system and software -adjustments in the control unit
• Construction of a laboratory test bench for CAN checking and software commissioning of two control units for vehicle architectures with engine and vehicle control unit
• Execution and calibration of test sequences of the functions of individual components of the hybrid system in test bench operation

Formula Student Electric Motorsport Team

High-voltage battery (1st season):

• Mechanical structure of the housing and interior partitions (Baybland)
• Wiring the cell stacks, manually assembly of boards (ALTIUM Des.)
• Cell testing (Lithium-Ion Battery)

Embedded Software (2nd season):

• Software steering wheel display in C
• Programming environment: Keil uVision5 with SPI interface and CAN communication on the overall system (Vector CANoe)

• Independent implementation of electrical installation work
• Maintenance, servicing and installation of robotic machines and systems
• Independent creation of the measurement protocols and documentation
• Carrying out repairs on factory equipment
• Worked with customers to understand needs and provide excellent service in robotic systems
• Delivered external projects in a timely manner onsite for global brands like Mercedes-Benz, Porsche and Andreas Stihl

• Summer Jobs also in year 2014, 2015, 2018, 2019 and 2021 (see LinkedIn-Profile for more information)
• Worked flexible hours; night, weekend, and holiday shifts