Freelancer profile translated to English.

Description

Experienced Interim Controller & Data & BI Specialist with over 25 years of experience in controlling, as well as extensive project and management experience in medium-sized companies and international corporations.

I support companies intransforming classic controlling into data-driven corporate management– with a focus on reporting, forecasting, and modern BI and KPI systems.

My focus is on the conception and implementation of scalable management reporting solutions, the optimization of controlling processes, and the automation of complex data structures using Power BI, Power Query, SQL, and Excel.

I combine controlling expertise with data analytics to create clear decision-making bases from data for management and executives.

Selected Project Results / Customer Benefits

• Reporting Automation

Reduction of manual Excel processes (up to 8 hours per run) to automated Power BI reports

→ Significant time savings, higher data quality, and reliable decisions

•Transparency in Project Business

Visualization of unbilled project costs in the millions

→ Clear control basis and targeted performance improvement

• International Reporting Integration

Harmonization of different cost center and account structures

→Immediate traceability and informed real-time decisions

Typical Projects

• KPI and management control systems

• Automated Power BI dashboards (Single Source of Truth)

• Transformation of Excel-based reports

• Budget, forecast, and scenario models

Core Competencies

• 25+ years of controlling experience

• International projects & project management

• Management experience with up to 14 employees

• Strong communication and implementation skills

USP

I transform Excel-based controlling into scalable, automated Power BI systems and enabledata-driven corporate management at the management level.

Languages

German
Native or bilingual
English
Fluent
Spanish
Basic

Workplace preferences

Remote only

Primarily works remotely

Mittelständisches produzierendes Unternehmen der Baubranche
Interim Controller / Knowledge Transfer
CIVIL ENGINEERING
September 2025 - December 2025 (3 months)
Role:Interim Controller
Focus:Knowledge transfer, reporting, cost analysis
Tasks
• Ensuring knowledge transfer from the departing controller
• Documentation of central controlling processes
• Operational controlling (liquidity planning, reporting)
• Simplification of the cost center structure to improve cost analysis
Result
• Transparent knowledge transfer and sustainable documentation of controlling processes
• Improved cost analysis and more efficient reporting
Controlling Cost Center Accounting Liquidity Planning Knowledge Management Cost Management
Mittelständisches Unternehmen der Internetbranche
Interim Controller / Power BI Data Analyst
PRIVATE EQUITY
February 2025 - June 2025 (4 months)
Role:Interim Controller / Data Analyst
Tasks
• Operational controlling and forecasting
• Further development of the commission calculation model
• Automation and optimization of commission calculations
• Development and expansion of Power BI dashboards
Result
• Improved transparency of Power BI dashboards
• More efficient and error-reduced commission calculation
Forecasting Microsoft Power BI PowerQuery ETL Controlling & KPI Systems
Mittelständisches Unternehmen des Maschinen- und Anlagebaus
Data Analyst / Productivity Dashboards in Power BI
MECHANICAL ENGINEERING
September 2024 - November 2024 (2 months)
Role:Data Analyst / Power BI Developer
Tasks
• Development of Power BI dashboards for productivity analysis
• Identification of cost blocks with a high proportion of Unallocated Costs (UAC)
• Visualization of relevant KPIs for management decisions
Result
• Improved transparency of productivity losses
• Basis for reducing UAC
• Contract extended twice
Microsoft Power BI Cost Optimization ELT DAX Data Modeling