Leon A.
Tableau Developer | Supply Chain Analytics (freelance)
Experience
Tableau Developer | Supply Chain Analytics (freelance)
Aldi International Services SE & Co. oHG
- Led end-to-end Tableau development connected to SAP BW, building dynamic dashboards for Supply Chain Management (SCM) use cases.
- Translated supply chain strategy goals into actionable, data-driven dashboards supporting operational and strategic decision-making.
- Delivered insights that improved supply chain visibility, risk mitigation and inventory efficiency across key functions.
Tableau Analyst / Tableau Coach & Consultant (freelance)
Berylls Mad Media (BMW Partner)
- Provided Tableau architecture, coaching and operative ad-hoc support.
- Developed advanced Excel calculations.
- Delivered business performance insights and KPI design.
Tableau Developer / Analyst (freelance)
Telefonica o2
- Developed the entire Tableau architecture and dashboards for the B2B Commercial Performance Management project (key dimensions: financial, trading, customer base, opportunity funnel and go-to-market) in cooperation with McKinsey & Company in alignment with business stakeholders' requirements.
- Performed variance analysis, financial controls, risk assessments and proactive risk management.
- Implemented dynamic budgeting and forecasting, cost control and optimization, and evaluation of financial KPIs.
- Managed Jira and Confluence for project tracking.
- Facilitated cross-functional collaboration.
Market & Business Intelligence Analyst
Panasonic Automotive
- Coached teams on Tableau and Salesforce; acted as Salesforce primary key user.
- Transformed, analyzed and interpreted point-of-sales and point-of-purchase data using Python and MySQL.
- Conducted win/loss analysis, pricing analysis and KPI development.
- Converted large datasets (quotes, CRM, ERP) into actionable information in coordination with respective departments.
- Defined future trends at product and industry level and translated commercial problems into data-driven solutions through collaboration with leadership teams.
Business Intelligence Analyst
CyberSolutions
- Reviewed internal e-commerce business processes and defined KPIs for supply chain and category management.
- Supported building, rollout and maintenance of the Tableau self-service BI environment.
- Led weekly Tableau Academy sessions.
- Utilized SQL for data analysis.
Product Engineer & Business Intelligence Specialist
Seekda GmbH
- Administered company's MySQL databases.
- Developed Tableau reports for customers and internal use.
Business Intelligence Analyst
Erste Group Bank AG
- Deployed SSAS cubes and supported senior management.
- Developed BI tool capabilities using Tableau for e-trading analysis based on iMarket and Bloomberg data.
Summary
Results-driven Business Intelligence Consultant with over 10 years of experience delivering data-driven solutions and enterprise-grade Tableau architectures for Fortune 500 clients, including BMW (Berylls), Telefónica o2, and Panasonic.
Deeply certified Tableau expert (Desktop Specialist, Server Architect, Developer, and more) with a proven track record of building 80+ dashboards (used by C-level stakeholders), leading dashboard development, KPI design, and self-service BI environments. Skilled in SQL, Salesforce and agile methodologies (Certified Kanban Coach®), with a strong ability to translate complex commercial problems into actionable insights. Adept at stakeholder management, cross-functional collaboration, and coaching teams to build scalable analytics ecosystems.
Languages
Certifications & licenses
Certified Kanban Coach®
Analytics Academy
Certified Tableau Desktop Specialist
Certified Tableau Developer
Certified Tableau Server Architect
Introduction To Data Studio
Analytics Academy
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