Summary
Overview
Work History
Education
Skills
Accomplishments
Timeline
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Antonios Roussos

Data Analyst And Maintenance Coordinator
Athens

Summary

Analytical Energy Engineer with hands-on experience in data processing, automation and performance analysis of renewable energy assets. Skilled in Python, SQL, and dashboarding tools (Grafana, Dash) for transforming large operational datasets into insights. Applied linear regression with Scikit-Learn to assess wind turbine performance. Proven ability to automate reporting workflows, optimize data pipelines and deliver clear visualizations to support decision-making. Eager to further develop forecasting and machine learning and forecasting skills to contribute to energy market analysis.

Overview

1
1
year of professional experience

Work History

Data Analyst and Maintenance Coordinator

Eunice Energy Group
Athens
08.2024 - Current

Data Analysis

  • Processed large-scale energy datasets from wind turbines, solar parks, and hybrid systems to evaluate performance trends and operational efficiency.
  • Calculated diesel fuel savings in an off-grid hybrid system by integrating SQL queries, Grafana dashboards, and engineering knowledge.
  • Compared and assessed multiple linear regression models and the nacelle transfer function to predict the free stream wind speed depending on the nacelle wind speed (Scikit-Learn).
  • Organized O&M activity (maintenance, faults, HEDNO curtailments, dashboards) into a unique Excel file for cross-team use.

Automation and Reporting

  • Developed a pipeline to access (from API, CSV, parquet), clean and process data and depict a company wind turbine performance and operational time analysis using Dash and ReportLab.
  • Created multiple data processing tools in Python to streamline the analysis of common datasets (Pandas).
  • Built automated reporting systems with Python (ReportLab) to streamline inspection workflows for solar parks.

Grafana Visualization

  • Deployed a Grafana dashboard to monitor and analyze the company's ERD devices condition
  • Improved existing Grafana dashboards depicting company's assets

Education

Bachelor in Mechanical Engineering - Mechanical Engineering

National Technical University of Athens
Athens
05-2023

Skills

  • Pandas

  • Scikit-Learn

  • Dash

  • Matplotlib, Seaborn

  • Postgres, MySQL

  • Grafana

  • Excel

  • Process Automation with Python

  • Problem-solving

  • Analytical Skills

  • English

Accomplishments

Developed a full-featured food & beverage delivery database system / A full-stack delivery management system

  • Designed an SQL relational schema for coffees, teas, foods, orders, and customers
  • Used MySQL + SQLalchemy + Alembic to manage all records
  • Built a working GUI with Tkinter for data entry
  • Depict daily performance metrics and graphs on Dash


Timeline

Data Analyst and Maintenance Coordinator

Eunice Energy Group
08.2024 - Current

Bachelor in Mechanical Engineering - Mechanical Engineering

National Technical University of Athens
Antonios RoussosData Analyst And Maintenance Coordinator