Lennart is a solution and enterprise architect specializing in real‑time, event‑driven data platforms built on Azure Cosmos DB and Microsoft Fabric. With more than 25 years of experience across banking, finance, manufacturing, retail, and public transportation, he has led major modernization initiatives — including transforming H&M’s global product data and PLM architecture. He has also worked at an enterprise level to develop strategies that support modern data platforms, both in his current role at Trafikförvaltningen and previously at Handelsbanken, among others.

Today, Lennart works at Trafikförvaltningen in Region Stockholm, where he focuses on domain‑driven design, operational data products, and real‑time architectures that power critical public transport services. His work centers on leveraging Cosmos DB Change Feed, serverless compute, and governed data domains to deliver instant, push‑based experiences across mobile, desktop, and analytical platforms.

He frequently speaks on modern data lifecycles, event‑driven business design, and cloud‑native architecture, addressing audiences ranging from business leaders to deep technical experts. Lennart also moderates and coaches at community and enterprise events.

Primary areas: Event‑driven architecture, real‑time data products, Azure Cosmos DB, Microsoft Fabric, .NET, serverless, mobile-first solutions, NoSQL, Graph & Vector DBs, CI/CD, multi‑cloud patterns.

Certifications: SAFe 6 Architect, Azure Developer, Azure Architect Expert, and more.