Niels Zeilemaker

Global CTO Data & AI

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Niels Zeilemaker is Global CTO of Data & AI at Xebia, where he leads the company's data platform and GenAI strategy across international teams. He works at the intersection of architecture, applied AI, and client engagement — shaping offerings, guiding technical direction on complex data platforms, and translating emerging AI capabilities into things organizations can actually run in production. He's a hands-on technologist at heart, as comfortable in a Databricks notebook or an Azure architecture review as in a presales conversation.

Niels Zeilemaker

Migrating a DWH, Live on Stage in Less Than 30 Minutes

Legacy data warehouse migrations are typically slow, manual, and risky. This talk explores how agentic AI changes that. In this talk we will explain how agents can support a migration end to end, then walk through a live example: migrating a legacy DWH to a modern platform on stage. We'll show how a readiness step inventories the existing system and flags challenges upfront, and how a migration step then takes that inventory and deploys specialized agents to convert the code, achieving 100% schema and logic migration up to 60% faster than traditional approaches. Alongside the demo, we'll share examples from real projects to show how this plays out beyond the stage.

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