InfoQ - InfoQ Dev Summit Munich 2025 - Presentations

Presentation: Reimagining Platform Engagement with Graph Neural Networks

Mariia Bulycheva — Mon, 13 Apr 2026 13:23:00 GMT

Mariia Bulycheva discusses the transition from classic deep learning to GNNs for Zalando's landing page. She explains the complexities of converting user logs into heterogeneous graphs, the "message passing" training process, and the technical pitfalls of graph data leakage. She shares how a hybrid architecture solved inference latency, delivering contextual embeddings to a downstream model.

By Mariia Bulycheva

Presentation: Duolingo's Kubernetes Leap

Franka Passing — Mon, 06 Apr 2026 12:11:00 GMT

Franka Passing discusses the architectural shift of Duolingo’s 500+ backend services to Kubernetes. She explains the move toward GitOps with Argo CD, the transition to IPv6-only pods, and the "cellular architecture" used to isolate environments. She shares "reports from the trenches" on managing developer trust, navigating AWS rate limits, and productionizing early adopter services.

By Franka Passing