Maria Voulgari
Summary
Accomplished Data Engineer at Metlen Energy & Metals, skilled in designing ETL pipelines and automating data ingestion processes. Proven analytical thinker with strong problem-solving abilities, delivering impactful insights through Power BI dashboards. Recognized for reliability and teamwork, ensuring data quality across diverse sources while collaborating with cross-functional teams.
Overview
6
6
years of professional experience
1
1
Certification
Work History
Data Engineer
Metlen Energy & Metals
11.2022 - Current
- Designed and implemented ETL pipelines in Azure Data Factory to ingest data into staging and Data Vault layers.
- Automated the ingestion process for data coming from diverse systems such as Excel exports, SQL databases, and cloud storage (Blob, Data Lake).
- Developed complex SQL transformations and views for data modeling and reporting in Azure SQL Database.
- Built Power BI dashboards for internal analysis using dynamic DAX measures and slicer logic.
- Ensured data quality, deduplication, and consistency checks across multiple data sources.
- Collaborated with cross-functional teams (IT, Finance, Business Analysts) to deliver data-driven insights.
- Processed large-scale datasets from multiple sources in Databricks, applying transformations with PySpark for analytics and reporting use cases.
Store Employee
Opap Play
05.2019 - 05.2021
Education
Master of Science - Computer & Electrical Engineering
Democritus University of Thrace
XanthiHigh School Diploma -
Atalanti High School
AtalantiSkills
- SQL
- Python
- Pyspark
- Azure Data Factory
- Microsoft Power BI
- Databricks
- Power Automate
- Azure DevOps
- Microsoft Report Builder
- Azure Logic Apps
- HTML
- CSS
Certification
- Microsoft Azure AI Fundamentals
- IBM Data Engineering Professional Certificate - Coursera
- Introduction to Data Engineering,
- Python for Data Science, AI & Development,
- Python Project for Data Engineering,
- Introduction to Relational Databases (RDBMS),
- Databases and SQL for Data Science with Python,
- Hands-on Introduction to Linux Commands and Shell Scripting,
- Relational Database Administration (DBA),
- ETL and Data Pipelines with Shell, Airflow and Kafka,
- Getting Started with Data Warehousing and BI Analytics,
- Introduction to NoSQL Databases.
- Project Management - GK Seminars
- Communication & Collaboration - Dynargie Greece
- Effective Meetings - Humanis your HR Partner
- Impactful Remote Representations - Dynargie Greece
- We develop Leaders - Humanis your HR Partner
- Business Etiquette - DOOR Training & Coaching
- Autocad 2D Certificate - Autodesk
Languages
English
Advanced (C1)
German
Upper intermediate (B2)
Timeline
Data Engineer
Metlen Energy & Metals
11.2022 - Current
Store Employee
Opap Play
05.2019 - 05.2021
Master of Science - Computer & Electrical Engineering
Democritus University of Thrace
High School Diploma -
Atalanti High School
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