Freelance data and AI developer, Almere (NL)
Data warehouses that add up, and the AI that runs on them
I am Bas Stiekema. I build the data layer that reporting and AI applications rest on, and the software on top of it. One point of contact, from source system to application.
Data warehousing
From source system to a report you can trust, on SQL Server or Azure.
AI software on your own data
Chat and agents that answer from your documents and figures, not from thin air.
Applications on your data
Web applications that open up the data warehouse to the people who work with it.
Real estate
A data warehouse as the foundation
Multi-year SQL Server data warehouse behind reporting and planning, with extractions from SAP among other sources.
Trade union
AI answers with sources
A knowledge assistant covering hundreds of collective agreements, in daily use. Every answer links to its source in the document.
Enterprise
A portal on the data warehouse
Internal BI platform that monitors the data pipelines and shows each role only the tiles that matter.
Own product
Cataloom
Cataloom reads the actual procedure and view code in a SQL Server or Azure SQL warehouse, read-only, and reports what is quietly wrong: dead objects, orphaned references, outdated documentation. The result is a folder of self-contained HTML files you open, search and forward. The first step is a free audit on one database.
One person, one signature
I build it, I stay accountable for it, and I put my name under it. How I make that stick, continuity included, is on the about page.
Direct contact
bas@xbas.nl
I usually reply within one working day.