About Me

I'm a Data Engineer at Commsquare, building real-time Spark/Kafka pipelines that process hundreds of millions of events per day for a top EU telecom provider. Before that, I was a Research Assistant at Athena Research Center working on RL-based demand forecasting, and a Data Scientist & ML Engineer at Meteorologica building deep learning models for energy production forecasting.

I hold a 5-year MEng from NTUA Athens (Electrical & Computer Engineering, CS major). I'm a Google Summer of Code alumnus, a published researcher, and I tutored Computer Vision at the M2L Summer School 2023.

I build things that process data at scale — and lately, AI systems that think for themselves.

Experience

June 2024 — Present

Data Engineer

Commsquare

Designed and implemented a configurable KPI engine used in production — enables on-demand analytics pipelines with reduced feature deployment time. Optimized and maintained real-time data pipelines with Spark Structured Streaming + Kafka, processing hundreds of millions of events/day for a top EU telecom provider.

Dec 2022 — Jun 2024

Research Assistant

Athena Research Center

Demand forecasting pipeline combining RL + statistical models for data center energy optimization — 33% efficiency improvement (tested on cloud infrastructure). Co-authored peer-reviewed publications in international journals and conferences. Supervised undergraduate and graduate students. Collaborated under the ARCADIA project with Intracom.

Apr 2021 — Jun 2024

Data Scientist & ML Engineer

Meteorologica

Deep learning architectures for time-series forecasting — 23% forecast accuracy improvement for energy production. End-to-end design and maintenance of production pipeline on Microsoft Azure. Daily energy forecasts for wind farms; clients: Terna and Inaccess.

Sep 2020 — Oct 2020

ML Engineer

NCSR "Demokritos"

Feature extraction methods for audio tasks. Developed an open-source PyTorch library for training, testing, and fine-tuning audio models.

Apr 2019 — Sep 2019

Software Engineer Intern

Google Summer of Code

Built a complete system for anonymizing sensitive documents — web UI + LibreOffice extension. Presented at the Hellenic Council of State (Supreme Administrative Court of Greece).

Education

Sep 2015 — Jul 2021

MEng in Electrical & Computer Engineering

National Technical University of Athens (NTUA)

5-year joint degree, 300 ECTS, major in Computer Science. Thesis: Emotion Driven Speaker Verification. Coursework: Machine Learning, Pattern Recognition, NLP, Algorithms & Complexity, Software Engineering, Computer Networks, Operating Systems.

Skills

MLOps & Data Engineering

Spark Kafka Hadoop / HDFS Azure Pipelines Azure Data Lake Docker CI/CD

Languages

Python SQL C / C++ Java Bash

ML & AI

PyTorch TensorFlow scikit-learn Time-Series Forecasting Reinforcement Learning NLP

Research

Literature Review Peer Review Rapid Prototyping Model Evaluation

Web & Databases

Django FastAPI ClickHouse MySQL MariaDB

Cloud & DevOps

Azure Docker Kubernetes Git Linux

Highlights

🏫

M2L Summer School 2023

Tutor at the Mediterranean Machine Learning Summer School. Organized the Computer Vision segment with daily tutorial sessions.

🏆

Google Hash Code 2018

Top 10 score in Greece. Built a routing algorithm for self-driving vehicles.

📄

Published Researcher

Co-authored peer-reviewed publications at Athena Research Center on RL-based demand forecasting for data centers.

🌍

Languages

Greek (native), English (Michigan Proficiency), German (B2, Goethe-Institut).

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