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George Giatsos

@georgegiatsos

Data Engineer at PwC Greece, building Fabric data pipelines and quality checks for registry data and analytics-ready forecasting datasets.

Greece

Message

At PwC Greece, I support SQL- and PL/SQL-based migration and transformation workflows for sensitive registry data across 33 tables. I’ve implemented data-quality and deduplication logic, and built and supported Microsoft Fabric ETL workflows with PySpark and Spark SQL.

I’ve also prepared model-ready datasets for forecasting and supply chain planning across three use cases, and developed reporting solutions with Streamlit and Power BI. On my Live Football Stats project, I built a real-time pipeline that transforms live match events into structured datasets for modeling, signal detection, and automated alerts.

Experience

Work history, roles, and key accomplishments

Current

Associate Data Engineer

Current

PwC Greece

Jul 2024 - Present (2 years 2 months)

Supported SQL- and PL/SQL-based data migration and transformation workflows for high-volume registry data, and built ETL workflows in Microsoft Fabric using PySpark and Spark SQL. Contributed to database redesign and schema evolution, and developed analytics-ready datasets for forecasting and supply chain planning.

SQL Pl SQL Python PySpark Spark SQL Microsoft Fabric Databricks ETL Data Migration Data Quality Data Cleaning Deduplication Schema Evolution CI CD Streamlit Pandas Matplotlib Power BI

Intern

Thessaliko IEK

Apr 2024 - Jul 2024 (3 months)

Assisted in implementing and maintaining data and software solutions, and collaborated with technical teams during system upgrades and reviews.

Education

Degrees, certifications, and relevant coursework

University of Ioannina

Integrated Master's Degree (MEng), Computer Science and Engineering

2016 - 2024

Integrated Master's Degree in Computer Science and Engineering, with a diploma thesis on algorithmic traffic light scheduling techniques for the reduction of CO2 emissions.