👋 Hi, I'm Pierre Zemb
I'm a Senior Engineer building data infrastructure at Clever Cloud. I've built and operated a variety of stateful distributed systems throughout my career.
I'm interested in distributed systems, data stores, and understanding how things work under the hood. I enjoy being part of open-source communities.
Cell-based architecture as the middle ground between one dense cluster and one cluster per customer, and why moving data is the core capability.
Compartmentalization explains FoundationDB's architecture: find the responsibilities that got coupled together, split them, and scale only the parts that can scale.
Avro payloads cannot be decoded without the writer schema, and that two-schema model is what makes rolling upgrades and schema evolution work.
You fake the handful of methods your code actually calls, prove the fake stays honest, and then make it fail the way production does.
A retrospective on BugBash 2026, and why software engineering looks brighter than ever.