Kevin Pontes
Berlin
Summary
Data Analysis Professional with over 12 years of experience leveraging advanced analytical methods, statistical modeling, and data-driven insights to support strategic decision-making. Skilled in transforming complex data into actionable business intelligence across technology, e-commerce, and financial services industries. Proven expertise in SQL, Python, BI tools, and predictive analytics with a strong focus on process optimization and measurable impact. Adept at collaborating cross-functionally and delivering analytics solutions that enhance operational performance and business growth.
Overview
14
14
years of professional experience
2011
2011
years of post-secondary education
1
1
Certification
Work history
Senior Data Analyst
Zalando SE
Berlin
10.2018 - 11.2025
- Develops and maintains advanced analytical models to support logistics, customer behavior analysis, and supply chain optimization.
- Leads data initiatives that increased forecasting accuracy by 22% and reduced operational delays by 15%.
- Designs automated dashboards using Tableau and Looker, improving data accessibility for over 300 internal stakeholders.
- Optimizes SQL pipelines and ETL processes, reducing data refresh time by 30%.
- Collaborates with engineering and product teams to implement data-driven improvements across key business functions.
Data Analyst
Siemens AG
Munich
08.2013 - 09.2018
- Conducted statistical analyses supporting manufacturing efficiency, cost modeling, and predictive maintenance projects.
- Built machine learning prototypes that improved failure detection rates by 18% across selected product lines.
- Managed complex datasets and implemented data quality frameworks that decreased error rates by 40%.
- Partnered with cross-functional teams to define KPIs and design analytical reporting solutions.
Junior Data Analyst
Deutsche Telekom AG
Bonn
10.2011 - 07.2013
- Supported the BI department with data cleaning, reporting, and KPI tracking across customer service operations.
- Created automated Excel and SQL reporting tools that saved the analytics team an average of 10 hours weekly.
- Assisted in customer churn analysis, contributing actionable insights that informed retention strategy improvements.
Education
Master of Science (M.Sc.) - Data Science & Business Analytics
University of Hohenheim
Stuttgart, GermanyBachelor of Science (B.Sc.) - Computer Science
University of Cologne
Cologne, GermanySkills
- Programming & Data Tools: Python (Pandas, NumPy, Scikit-learn), R, SQL, SAS
- Business Intelligence: Tableau, Power BI, Looker, Qlik
- Databases: MySQL, PostgreSQL, MS SQL Server, BigQuery
- Data Engineering: ETL design, data warehousing, pipeline optimization
- Statistics & Analytics: Predictive modeling, A/B testing, statistical inference, time-series forecasting
- Cloud & Infrastructure: AWS (Redshift, S3), Google Cloud Platform
- Professional Skills: Stakeholder communication, project management, requirements analysis, data storytelling
Certification
- Google Professional Data Engineer – Google Cloud, 2022
- Tableau Desktop Certified Associate – Tableau, 2021
- Microsoft Certified: Azure Data Scientist Associate – Microsoft, 2020
- IBM Data Science Professional Certificate – IBM, 2019
Timeline
Senior Data Analyst
Zalando SE
10.2018 - 11.2025
Data Analyst
Siemens AG
08.2013 - 09.2018
Junior Data Analyst
Deutsche Telekom AG
10.2011 - 07.2013
Bachelor of Science (B.Sc.) - Computer Science
University of Cologne
Master of Science (M.Sc.) - Data Science & Business Analytics
University of Hohenheim