Event-Driven Microservices with Azure Cosmos DB | Tural Suleymani | Azure Cosmos DB Conf 2026

Event-driven architectures often fail at scale due to tight coupling, fragile messaging pipelines, and operational complexity. Tural Suleymani (Microsoft MVP, Engineering Manager at VOE Consulting) shares how his team designed and evolved a high-scale event-driven microservices system using Azure Cosmos DB Change Feed as the backbone for domain events — running in production under real traffic. He walks through concrete problems: synchronous service dependencies, ordering guarantees, hot partitions, and consistency tradeoffs. You'll see how they modeled events per bounded context, selected partition keys that survived scale, and implemented reliable consumers. Includes a live, repeatable demo of an end-to-end event flow — from write, to Change Feed, to downstream services — with observability and failure handling. 👤 Connect with Tural Suleymani 📝 Tural Suleymani is a seasoned software development expert with over a decade of industry experience. Renowned as Azerbaijan's first Microsoft MVP in .NET and a three-time C# Corner MVP, he has established himself as a leading authority in his field. He is the author of "Hands-on Microservices with Javascript" book published by Packt publishing and Microsoft MCT. With a passion for sharing knowledge, Tural has dedicated ten years to mentoring developers through comprehensive programming languages and technology tools instruction. A self-taught pioneer, he empowers a global audience through his TuralSuleymaniTech YouTube channel, where he delivers in-depth tutorials and insights on C#, Apache Kafka, SQL, JavaScript, Domain-Driven Design, software architecture, microservices, and more. Currently, he works for VOE Consulting as a Chief Software Architect. 💼 https://www.linkedin.com/in/tural-suleymani/ 𝕏 https://x.com/SuleymaniTural ✍️ https://www.youtube.com/@TuralSuleymaniTech 🌐 https://voeconsulting.net/ 🏆 https://mvp.microsoft.com/MVP/profile/03714279-cac2-4e47-8b00-a57f71efc528 🎤 https://developer.azurecosmosdb.