root@pierrezemb.fr:~/blog$ ./read --quorum home
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👋 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.

Pierre Zemb's Blog
eza -snew -r ./posts | head -5
2026-06-09
Designing Fakes That Prove CorrectnessYou fake the handful of methods your code actually calls, prove the fake stays honest, and then make it fail the way production does.
#testing #simulation #distributed-systems #software-engineering #rust
2026-05-05
BugBash 2026, or how the correctness decade has startedA retrospective on BugBash 2026, and why software engineering looks brighter than ever.
#software-engineering #testing #simulation #correctness #llm
2026-03-26
Why Fakes Beat Mocks and TestcontainersTrait-based fakes test partial failures that mocks and Testcontainers fundamentally cannot simulate. They are also the on-ramp to simulation-driven development.
#testing #simulation #distributed-systems
2026-03-23
Diving Into Coverage-Guided FuzzingHow a 600-line Rust fuzzer discovers a 3-byte crash sequence in 9,000 iterations instead of 16 million
#rust #fuzzing #testing #simulation #diving-into
2026-02-25
Building Index-Backed Query Plans in DataFusionWhat I learned about manually constructing physical query plans for secondary index queries, and the library that came out of it.
#rust #datafusion #sql #query-engine #databases #distributed-systems
revision history © 2026 Pierre Zemb · last rev. 2026-06-09
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