Guy is an IT delivery specialist with more than 20 years of professional experience, focused on integration and cloud-native architecture. Across a career spanning large-scale enterprise programmes in telecommunications (BSS), the public sector and financial services, he has worked the full delivery lifecycle — moving between project manager, team lead, business consultant, technical designer, hands-on developer and Site Reliability Engineer.
Today his work centres on event-driven integration and modern API management, with hands-on experience across all three major clouds (AWS, Azure and Google Cloud) and strong depth in Kubernetes, gained through his time in SRE. Equally at home shaping architecture and writing code, he’s known for building high-performing distributed teams — and for making sure people grow and have some fun along the way.
As parcel volumes grow, continuously polling APIs for status updates becomes increasingly inefficient. At PostNL, this challenge led to the adoption of an event-driven approach where parcel status changes are published and consumed in real time. This session shares the practical lessons learned while introducing event streaming into a large logistics organisation. We discuss how to determine when APIs, events, or file-based integrations are the right choice, how data ownership and governance can be organised across teams, and why schema management is critical for maintaining data quality at scale. We also cover event design, stream processing, observability, and security, highlighting the operational challenges we encountered and the lessons learned while driving adoption across the organisation. The focus is on the architectural and organisational trade-offs involved in building and operating a production event-streaming platform.
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