Freelancer profile translated to English.
Back to original languageAbout Malte
Hey, I'm Malte – BI Consultant & Analytics Engineer focusing on end-to-end data solutions 📊
I help companies prepare their data to create clear, reliable foundations for decision-making – automated, performant, and without manual Excel workarounds.
Instead of just building reports, I develop comprehensive analytics solutions: from connecting ERP and other data sources, through clean data models, to meaningful dashboards in Microsoft Power BI.
My focus is on stable, maintainable, and performant data models that function reliably even with complex finance use cases.
What you get:
✔ Automated reporting solutions – less manual work, more time for analysis
✔ Clear and reliable KPIs – well-founded decisions instead of gut feeling
✔ Clean data models – scalable, understandable, and usable in the long term
✔ Performant reports – fast loading times even with large amounts of data
✔ Structured implementation – from the data source to the finished dashboard
I particularly enjoy working in the finance sector, but I also support data-driven projects in other areas.
➡️ If you finally want to use your data in a structured way and make well-founded decisions, let's talk
German
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- OptiMobilAPI Integration of Invoice Data (EURONET → sevDesk)RETAIL (SMALL BUSINESS)January 2026 - January 2026Hamburg, GermanyAs part of this project, an optics software was connected to sevDesk via a REST API to automate the transfer of invoices.Before creating an invoice, it is checked whether the customer already exists (customer number comparison) and whether the respective invoice is already present in sevDesk to avoid duplicates.After processing, a log is exported that contains the processing status and relevant details about successful or failed transfers.
- Terra Canis GmbH
On Malt
Validation of a Dashboard (Google Sheet) for Calculating and Displaying Customer Lifetime ValueE-COMMERCENovember 2025 - November 2025Project:Validation & Optimization of Customer KPIs Dashboard (Google Sheets)Value:Validation & Correction of CLV and Retention Rate calculations. Critical bug fixing in determining First Order and customer count, which significantly impacts cohort analysis.Goals:Reliable KPIs for strategic decisions. Highlighting the limitations of Google Sheets with large data volumes.Tasks:Comprehensive analysis of the Google Sheets dashboard. Identification of errors in First Order determination due to limited data volume. Development of more precise formulas (COUNTUNIQUEIFS, MINIFS) and recommendation for migration to Power Query/BI to consider ALL customer transactions and form correct cohorts. - OTTO GmbH & Co. KGData AnalystMarch 2022 - Today (4 years and 3 months)Hamburg, GermanyI am currently responsible for creating and implementing interactive dashboards and reports that enable our stakeholders to make data-driven decisions. I work closely with various departments to understand their requirements and develop customized solutions.- Transforming data from different sources to create meaningful reports.- Developing and operating semantic models- Applying best practices in data visualization to present complex information understandably.- Designing user-friendly and appealing dashboards that visually represent key metrics.
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Education
- Certified Business Economist BachelorHandelsfachwirt Bachelor