Summary
Overview
Work History
Education
Skills
Websites
Languages
Timeline
Key Skills
Hobbies and Interests
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Kevin Beltran

Berlin

Summary

Data Analyst with 4+ years of experience transforming complex time-series data into actionable insights. Skilled in Python, SQL, and Tableau, with a strong foundation in ETL pipeline design, root cause analysis, and collaboration with cross-functional teams. Passionate about building scalable data products to support business decision-making and proactive system improvement.

Overview

11
11
years of professional experience

Work History

Engineering Data Analyst

Sonnen GmbH
02.2021 - Current
  • Designed and deployed robust ETL pipelines to process millions of time-series data points daily, improving diagnostics for 100,000+ energy systems.
  • Developed Python scripts and SQL queries to identify root causes of system failures, enabling predictive maintenance and reducing downtime.
  • Developed interactive dashboards using Tableau to visualize key performance indicators for stakeholders.
  • Collaborated with Data Science, R&D, and Product teams to analyze battery performance and implement reliability improvements.
  • Automated service case generation based on anomaly detection, improving resolution times and customer satisfaction.

Research Assistant – Sensors & Microsystems Lab

University of Freiburg (IMTEK)
12.2017 - 02.2020
  • Analyzed experimental sensor data (oxygen, temperature, resistance, pressure) using Python.
  • Built test systems and conducted electrical measurements for sensor development.
  • Supported packaging R&D for high-temperature microsystem applications.

Project Engineer – Air & Power Management Systems

Honeywell Aerospace
08.2015 - 04.2017
  • Evaluated test results and simulations to support R&D and product validation.
  • Participated in pneumatic system design, budgeting, and project planning.

Technical Support Engineer

Honeywell Aerospace
03.2015 - 08.2015
  • Programmed PLCs, vision sensors, and motor systems.
  • Installed and supported complex electronic and mechanical equipment.

Intern – Fuel Cell R&D

Daimler AG
04.2014 - 08.2014
  • Performed data analysis of sensor and system metrics (e.g., temperature, vibration).
  • Supported instrumentation for fuel cell test setups and electro-turbo chargers.

Education

Master of Science - Embedded Systems Engineering

University of Freiburg
Freiburg Im Breisgau, Germany
07.2020

Bachelor of Science - Mechatronic Engineering

University of Baja California
Mexicali, Mexico
12.2014

Skills

  • Data visualization and presentations
  • Data analysis
  • Python programming
  • Excel functions
  • Tableau
  • Data validation
  • ETL processes
  • Data storytelling
  • Git
  • Data cleaning

Languages

Spanish
Bilingual or Proficient (C2)
English
Advanced (C1)
German
Upper intermediate (B2)

Timeline

Engineering Data Analyst

Sonnen GmbH
02.2021 - Current

Research Assistant – Sensors & Microsystems Lab

University of Freiburg (IMTEK)
12.2017 - 02.2020

Project Engineer – Air & Power Management Systems

Honeywell Aerospace
08.2015 - 04.2017

Technical Support Engineer

Honeywell Aerospace
03.2015 - 08.2015

Intern – Fuel Cell R&D

Daimler AG
04.2014 - 08.2014

Master of Science - Embedded Systems Engineering

University of Freiburg

Bachelor of Science - Mechatronic Engineering

University of Baja California

Key Skills

Python, SQL, Tableau, Databricks, AWS Athena, REST APIs, Git, Jira, Salesforce, MS Office, ETL development (pandas, PySpark), API integration, automated workflows

Hobbies and Interests

  • Singing (opera pop)
  • Playing guitar & piano
  • Running with my dog
  • Gym

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Kevin Beltran