{"id":74,"date":"2026-10-23T10:17:36","date_gmt":"2026-10-23T08:17:36","guid":{"rendered":"https:\/\/jarentowski.pl\/?page_id=74"},"modified":"2026-10-23T10:32:33","modified_gmt":"2026-10-23T08:32:33","slug":"%e2%96%baportfolio%e2%97%84","status":"publish","type":"page","link":"https:\/\/jarentowski.pl\/?page_id=74","title":{"rendered":"\u25baPortfolio\u25c4"},"content":{"rendered":"\n<p class=\"has-medium-font-size\"><strong>Below are a few portfolio elements of solutions\/tools\/platforms I built myself or was a key contributor:<\/strong><\/p>\n\n\n\n<p><strong>2026<\/strong><br>Machine Learning prediction tool &#8211; next-day transaction prediction, effectiveness 80% (predition\/reality) &#8211; Python ML libraries <\/p>\n\n\n\n<p><strong>2025<\/strong><br>Custom Data Mart for Loyalty system, global Fuel Retail Company, Azure Data Factory, Azure SQL, TSQL, Python, Java <\/p>\n\n\n\n<p><strong>2024<\/strong><br>Master Data Management system migration + customization, Germany bank, MS SQL\/TSQL <\/p>\n\n\n\n<p><strong>2023<\/strong><br>Graph Analytics Fraud implementation for the National Customs Office (Central America Country)<\/p>\n\n\n\n<p><strong>2022<\/strong><br>Cloud + on-prem monitoring configuration, auto-ticketing (SNOW), 1500 devices (servers, interfaces)<\/p>\n\n\n\n<p><strong>2013<\/strong><br>SAP BPM Implementation &#8211; Service Level Manager role, on-site (India)<\/p>\n\n\n\n<p><strong>2012<\/strong><br>Oracle Cube Migration &#8211; PM role, 200k USD TCV<\/p>\n\n\n\n<p><strong>2009<\/strong><br>Data Warehouse Reporting tool &#8211; custom report generation and extraction &#8211; Oracle RAC, PL\/SQL <\/p>\n\n\n\n<p><strong>2006<\/strong><br>Accounting Financial system evolution, automation, extensions &#8211; Oracle, Oracle Forms, PL\/SQL<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Below are a few portfolio elements of solutions\/tools\/platforms I built myself or was a key contributor: 2026Machine Learning prediction tool &#8211; next-day transaction prediction, effectiveness 80% (predition\/reality) &#8211; Python ML libraries 2025Custom Data Mart for Loyalty system, global Fuel Retail Company, Azure Data Factory, Azure SQL, TSQL, Python, Java 2024Master Data Management system migration + [&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-74","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/jarentowski.pl\/index.php?rest_route=\/wp\/v2\/pages\/74","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jarentowski.pl\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jarentowski.pl\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jarentowski.pl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jarentowski.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=74"}],"version-history":[{"count":4,"href":"https:\/\/jarentowski.pl\/index.php?rest_route=\/wp\/v2\/pages\/74\/revisions"}],"predecessor-version":[{"id":81,"href":"https:\/\/jarentowski.pl\/index.php?rest_route=\/wp\/v2\/pages\/74\/revisions\/81"}],"wp:attachment":[{"href":"https:\/\/jarentowski.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=74"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}