Stefan Dangubic - BI Consultant in Controlling

Q: Where is Stefan based?

Stefan is based in Vienna, Austria .

Q: What languages does Stefan speak?

Stefan speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Stefan have?

Stefan has at least 17 years of experience. During this time, Stefan has worked in at least 13 different roles and for 16 different companies . The average length of individual experience is 1 year . Note that Stefan may not have shared all experience and actually has more experience.

Q: What is Stefan's latest experience?

Stefan's most recent position is BI Consultant in Controlling at Reutter GmbH .

Q: What companies has Stefan worked for in recent years?

In recent years, Stefan has worked for Reutter GmbH , A&W Holding GmbH , Gebauer & Griller Kabelwerke GmbH , Glasfaser Spezial-Bau GmbH , and Von Greyerz AG .

Q: Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Professional Services , Banking and Finance , and Energy . Stefan also has some experience in Manufacturing and Construction .

Q: Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Business Intelligence , Finance , and Strategy . Stefan also has some experience in Information Technology , Project Management , and Research and Development .

Q: Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Professional Services , Banking and Finance , and Manufacturing .

Q: Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Business Intelligence , Finance , and Information Technology .

Recommended expert

Vienna, Austria

Experience

Apr 2025 - Present

1 year

Stuttgart, Germany

BI Consultant in Controlling

Reutter GmbH

Extracting, transforming and cleaning data from Microsoft Dynamics AX
Creating sales reports in Power BI
Training staff in business intelligence
Technologies: Power BI, SQL, SQL Server Integration Services (SSIS)

Jul 2024 - Present

1 year 9 months

Frankfurt, Germany

BI & Data App Developer

A&W Holding GmbH

Automating the controlling process
Extracting, transforming and cleaning data from various data sources and consolidating it into a data warehouse
Creating comprehensive dashboards and reports in Power BI
Leading a team of two data analysts
Technologies: Power BI, Python, SQL, Excel, Git

Apr 2024 - Mar 2025

1 year

Vienna, Austria

Business Data Engineer

Gebauer & Griller Kabelwerke GmbH

Building an ETL process in Azure Data Factory to load data from SAP ERP, SAP BW and SAC
Cleaning, linking and analyzing data in Azure Databricks (Bronze/Silver/Gold medallion architecture)
Preparing reports in Power BI
Collaborating with stakeholders: business analysts, SAP consultants and DevOps engineers
Technologies: Azure Data Factory, Databricks, Power BI, Apache Spark

Apr 2024 - Nov 2024

8 months

Munderfing, Austria

Senior Data Engineer

Glasfaser Spezial-Bau GmbH

Developing a Python pipeline to load data from two construction planning systems into a data warehouse
Creating a Power BI report with detailed fiber network maps to monitor construction progress and costs
Technologies: Power BI, Python, MySQL, Git

Nov 2023 - Mar 2024

5 months

Zürich, Switzerland

BI Consultant

Von Greyerz AG

Creating comprehensive Power BI reports on managed assets, inventory movements, financial metrics and customer KPIs
Ensuring the highest level of data security due to highly confidential client data
Technologies: Power BI, SQL

Aug 2023 - Sep 2023

2 months

Berlin, Germany

Financial Modelling Consultant

Zolar GmbH

Created the financial plan for a special purpose vehicle (SPV) to approach investors
Technologies: Excel, VBA

Mar 2023 - Apr 2023

2 months

Bonn, Germany

BI Consultant

DHL Consulting GmbH

Acted as a sparring partner in building an HR dashboard and supported complex DAX formulas
Technologies: Power BI

Dec 2022 - Feb 2023

3 months

Hamburg, Germany

BI Consultant

DZ-4 GmbH

Developed a controlling tool in Power BI for the plan vs. actual comparison of the solar panel portfolio
Technologies: Power BI

May 2022 - Apr 2023

1 year

Eschborn, Germany

Manager (Freelance)

Ernst & Young

Project manager at EY Germany in Strategy & Transactions focusing on financial modelling and business intelligence
Responsible for the financial modelling workstream in 2 M&A projects and 2 controlling projects
Technologies: Power BI, Excel

Jun 2021 - Apr 2022

11 months

Vienna, Austria

Financial Modelling Consultant

Bausparkasse Wüstenrot AG

Developed a budget plan for the capital market as part of launching a retail bank, taking regulatory requirements into account
Technologies: Excel, VBA

May 2021 - Dec 2021

8 months

Amsterdam, Netherlands

Energy Data Analyst

Power2X Services B.V.

Modeling the European electricity market (supply and demand modeling) to develop electricity price scenarios
Technologies: Python, PLEXOS

Mar 2021 - Apr 2021

2 months

Vienna, Austria

Financial Modelling Consultant

Ring International Holding AG

Creating planning calculations for different RIH companies
Technologies: Excel

Jan 2021 - Present

5 years 3 months

Vienna, Austria

Founder & Consultant

Walecon e.U.

Founded the consulting firm Walecon, focused on business intelligence, data analytics, and financial modelling

Sep 2018 - Dec 2020

2 years 4 months

Vienna, Austria

Manager

Ernst & Young

Part of the EY Strategy & Transactions team, responsible for business analytics and financial modelling
Projects in business intelligence and data warehousing, integrated financial planning, statistical modelling

Mar 2015 - Jun 2018

3 years 4 months

Zug, Switzerland

Portfolio Optimisation Expert

MET International AG

Part of the power & gas trading team
Responsible for controlling and optimising electricity and gas supply contracts
Conducting market analyses using statistical methods

Feb 2012 - Mar 2015

3 years 2 months

Vienna, Austria

Commodities and Financial Analyst

Sibex GmbH

Data Warehousing, Data Analytics and Financial Planning in commodity trading

Feb 2009 - Feb 2012

3 years 1 month

Vienna, Austria

Consultant

Deloitte

Part of the Financial Advisory team with a focus on Quantitative Finance, Financial Modelling and Business Analytics

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Professional Services, Banking and Finance, Energy, Manufacturing, and Construction.

Professional Services

Banking and Finance

Energy

Manufacturing

Construction

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Business Intelligence, Finance, Strategy, Information Technology, Project Management, and Research and Development.

Business Intelligence

Finance

Strategy

Information Technology

Project Management

Research and Development

Summary

Business Intelligence expert with extensive experience in developing data-driven solutions, the automation of processes and business data visualization. Supporting the entire data-driven decision-making process from raw data preparation through statistical analysis to transparent communication with decision-makers:

Implementation of end-to-end solutions to automate processes, including data integration, transformation and dashboarding.
Preparation and consolidation of business data from various data sources (ETL & Data Warehousing).
Development of interactive BI dashboards and visualization of complex business data to support data-driven decisions.
Conducting analyses using statistical methods (machine learning).

Skills

Programming: Python, Sql
Data Visualization & Bi: Power Bi, Dax, Power Query
Cloud & Big Data: Azure Databricks, Azure Data Factory (Adf), Azure Synapse Analytics, Microsoft Fabric, Apache Airflow, Delta Lake
Frameworks: Pandas, Numpy, Scikit-learn, Pyspark, Sqlalchemy, Streamlit
Version Control & Deployment: Git, Azure Devops
Financial Modelling: Excel, Vba

Languages

German

Native

English

Advanced

Education

Sep 2014 - Jul 2015

University of Geneva

Diploma of Advanced Studies · Commodity Trading · Geneva, Switzerland

Mar 2009 - Dec 2010

University of Vienna

Master · Data Science · Vienna, Austria

Jul 2007 - Mar 2009

University of Vienna

Bachelor · Statistics and Data Analytics · Vienna, Austria

...and 1 more

Certifications & licenses

Microsoft Certified: Azure Data Fundamentals

Microsoft Certified: Azure Enterprise Data Analyst

Microsoft Certified: Power BI Data Analyst

Statistics

Experience

Total positions 17

Experience in Professional Services 10.5 y

Avg length 1 y 5 m

Longest experience 5 y 2 m

Global Experience

Countries worked in 4 (Austria, Germany, Switzerland, Netherlands)

Primary country Austria

Expertise

Recent roles BI Consultant in Controlling, BI & Data App Developer, Business Data Engineer

Main industries Professional Services, Banking and Finance, Energy

Main business areas Business Intelligence, Finance, Strategy

Qualifications

Highest degree Master

Certifications earned 3

Profile

Created

September 2023

Last Update

June 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Stefan based?

Stefan is based in Vienna, Austria.

What languages does Stefan speak?

Stefan speaks the following languages: German (Native), English (Advanced).

How many years of experience does Stefan have?

Stefan has at least 17 years of experience. During this time, Stefan has worked in at least 13 different roles and for 16 different companies. The average length of individual experience is 1 year. Note that Stefan may not have shared all experience and actually has more experience.

What roles would Stefan be best suited for?

Based on recent experience, Stefan would be well-suited for roles such as: BI Consultant in Controlling, BI & Data App Developer, Business Data Engineer.

What is Stefan's latest experience?

Stefan's most recent position is BI Consultant in Controlling at Reutter GmbH.

What companies has Stefan worked for in recent years?

In recent years, Stefan has worked for Reutter GmbH, A&W Holding GmbH, Gebauer & Griller Kabelwerke GmbH, Glasfaser Spezial-Bau GmbH, and Von Greyerz AG.

Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Professional Services, Banking and Finance, and Energy. Stefan also has some experience in Manufacturing and Construction.

Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Business Intelligence, Finance, and Strategy. Stefan also has some experience in Information Technology, Project Management, and Research and Development.

Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Professional Services, Banking and Finance, and Manufacturing.

Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Business Intelligence, Finance, and Information Technology.

What is Stefan's education?

Stefan holds a Master in Data Science from University of Vienna, a Master in Economics from University of Vienna, a Bachelor in Commodity Trading from University of Geneva and a Bachelor in Statistics and Data Analytics from University of Vienna.

Does Stefan have any certificates?

Stefan has 3 certificates. These include: Microsoft Certified: Azure Data Fundamentals, Microsoft Certified: Azure Enterprise Data Analyst, and Microsoft Certified: Power BI Data Analyst.

What is the availability of Stefan?

Stefan is immediately available full-time for suitable projects.

What is the rate of Stefan?

Stefan's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.