{"id":984,"date":"2026-02-21T19:07:35","date_gmt":"2026-02-21T19:07:35","guid":{"rendered":"https:\/\/inphronesys.com\/?page_id=984"},"modified":"2026-02-21T19:07:35","modified_gmt":"2026-02-21T19:07:35","slug":"about-me","status":"publish","type":"page","link":"https:\/\/inphronesys.com\/?page_id=984","title":{"rendered":"About Me"},"content":{"rendered":"<h2>Turning Supply Chain Data Into Decisions<\/h2>\n<p>I am Jan-Philipp Grabowski \u2014 a supply chain leader with over 15 years of experience across global manufacturing, strategic sourcing, and operations management. What sets me apart is that I do not just manage supply chains \u2014 I build the data science tools to make them smarter.<\/p>\n<p>Throughout my career, I have worked at the intersection of procurement strategy and applied analytics. I write production-grade code in <strong>R<\/strong> and <strong>Python<\/strong> to solve real supply chain problems: forecasting demand, segmenting suppliers, mining process data from ERP systems, and visualizing cost drivers. This blog is where I share those methods \u2014 practical, reproducible, and designed for practitioners who work with real data.<\/p>\n<h2>Professional Background<\/h2>\n<p>My career spans five industries and some of the most demanding supply chain environments in European manufacturing:<\/p>\n<p><strong>Vice President Purchasing &amp; Vendor Quality Management<\/strong> at <strong>corpuls<\/strong> (GS Elektromedizinische Ger\u00e4te G. Stemple GmbH) \u2014 leading procurement and supplier quality for a medical device manufacturer where compliance, traceability, and supply continuity are non-negotiable.<\/p>\n<p><strong>Head of Purchasing &amp; Materials Management<\/strong> at <strong>Juzo<\/strong> (Julius Zorn GmbH) \u2014 responsible for end-to-end materials management in medical compression manufacturing. Drove the digitization of operational purchasing processes, led a major ERP rollout, and introduced data science methods to purchasing analytics.<\/p>\n<p><strong>Global Commodity Manager<\/strong> at <strong>Volvo Construction Equipment<\/strong> \u2014 managed the powertrain commodity group across all Volvo CE production sites globally, covering axles, brakes, prop-shafts, and engines. Operated within a European P&amp;SM organization where sourcing decisions had direct impact on factory output across multiple continents.<\/p>\n<p><strong>Global Commodity Manager<\/strong> at <strong>GEA Group<\/strong> \u2014 strategic sourcing for one of the world&#8217;s largest industrial engineering companies, working across international supplier networks in process technology.<\/p>\n<p>Earlier roles at <strong>seele GmbH<\/strong> (strategic purchasing) and <strong>KEBA Group<\/strong> (strategic sourcing) gave me a foundation in supplier development, contract negotiation, and cross-functional project leadership.<\/p>\n<h2>Where Data Science Meets the Shop Floor<\/h2>\n<p>I do not treat data science as a theoretical exercise. Every technique I write about on this blog comes from a real operational need:<\/p>\n<ul>\n<li><strong>Supplier segmentation<\/strong> using Self-Organizing Maps and hierarchical clustering \u2014 because ABC analysis alone does not capture supplier risk, quality, and delivery performance in a single view.<\/li>\n<li><strong>Process mining<\/strong> with bupaR \u2014 reconstructing actual process flows from ERP timestamps to find bottlenecks, rework loops, and resource conflicts that process documentation misses.<\/li>\n<li><strong>Correlation analysis<\/strong> for supply chain KPIs \u2014 quantifying the trade-offs between lead time, cost, quality, and delivery reliability so that sourcing decisions are based on evidence, not gut feeling.<\/li>\n<li><strong>Cost driver analysis<\/strong> with ternary plots \u2014 visualizing how material, labor, and overhead costs interact across supplier portfolios.<\/li>\n<li><strong>Demand-Driven MRP (DDMRP)<\/strong> \u2014 implementing pull-based replenishment strategies that reduce inventory while improving service levels.<\/li>\n<\/ul>\n<p>I program in <strong>R<\/strong> and <strong>Python<\/strong>, build dashboards and visualizations, and use tools ranging from <strong>ggplot2<\/strong> and <strong>tidyverse<\/strong> to <strong>scikit-learn<\/strong> and <strong>Claude API<\/strong> for LLM-powered supply chain analysis.<\/p>\n<h2>Certifications<\/h2>\n<ul>\n<li><strong>CPIM<\/strong> \u2014 Certified in Planning and Inventory Management (ASCM\/APICS)<\/li>\n<li><strong>CSCP<\/strong> \u2014 Certified Supply Chain Professional (ASCM\/APICS)<\/li>\n<li><strong>CQM<\/strong> \u2014 Certified Quality Manager<\/li>\n<\/ul>\n<p>These are not resume decorations. CPIM and CSCP gave me the structured framework to connect shop-floor decisions to end-to-end supply chain strategy. The combination of formal supply chain education and hands-on data science capability is what makes the methods on this blog actionable for practitioners.<\/p>\n<h2>Speaking &amp; Thought Leadership<\/h2>\n<p>I have presented at AI conventions on the application of artificial intelligence and data science to supply chain operations. My focus is always the same: showing operations professionals how to extract value from the data their organizations already collect \u2014 ERP transaction logs, supplier scorecards, quality reports, and production schedules.<\/p>\n<h2>What I Can Do For You<\/h2>\n<p><strong>For companies looking for supply chain leadership:<\/strong> I bring a rare combination of strategic procurement experience and technical data science skills. I do not just identify problems \u2014 I build the analytical tools to solve them and the dashboards to monitor them.<\/p>\n<p><strong>For teams looking to modernize their supply chain analytics:<\/strong> I can help you move from Excel-based reporting to reproducible, automated analysis pipelines in R or Python. From supplier segmentation to demand forecasting to process mining \u2014 I have built and deployed these solutions in real manufacturing environments.<\/p>\n<p><strong>For readers of this blog:<\/strong> Every post includes working code, realistic datasets, and clear explanations. No theory without application. Take the code, adapt it to your data, and see the results for yourself.<\/p>\n<h2>Get in Touch<\/h2>\n<p>Connect with me on <a href=\"https:\/\/www.linkedin.com\/in\/jpgrabowski\">LinkedIn<\/a> or explore the articles on this blog to see my work in action.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Turning Supply Chain Data Into Decisions I am Jan-Philipp Grabowski \u2014 a supply chain leader with over 15 years of experience across global manufacturing, strategic sourcing, and operations management. What sets me apart is that I do not just manage supply chains \u2014 I build the data science tools to make them smarter. Throughout my [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-984","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/inphronesys.com\/index.php?rest_route=\/wp\/v2\/pages\/984","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inphronesys.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/inphronesys.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/inphronesys.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/inphronesys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=984"}],"version-history":[{"count":1,"href":"https:\/\/inphronesys.com\/index.php?rest_route=\/wp\/v2\/pages\/984\/revisions"}],"predecessor-version":[{"id":986,"href":"https:\/\/inphronesys.com\/index.php?rest_route=\/wp\/v2\/pages\/984\/revisions\/986"}],"wp:attachment":[{"href":"https:\/\/inphronesys.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}