Clément Delafargue is a senior software engineer with 16 years of experience building robust, scalable web-facing systems and leading engineering teams across startups and cloud companies. He combines hands-on engineering in Scala, Haskell, Rust and Java with practical leadership roles from CTO to technical lead, recently joining Datadog after stints at 3DS Outscale and Clever Cloud. Deeply interested in tooling and architecture, he has designed event-sourced distributed systems, CQRS patterns and hybrid data stores while mentoring teams in functional programming and modern web stacks. His open-source work includes core contributions to the Rust-based Sōzu reverse proxy (HTTP/1.1 parsing and AMQP integration) and improving production documentation tooling for Clever Cloud, showing a blend of low-level protocol work and developer experience focus. Based in Nantes, he’s equally comfortable sketching high-level architectures and shipping the code that makes them reliable in production.
16 years of coding experience
16 years of employment as a software developer
Lycée la bruyère
Master's degree Computer Engineering, Master's degree Computer Engineering at Centrale Nantes
Classe préparatoire - filière PC, Classe préparatoire - filière PC at CPGE - Lycée Hoche
Markdown content of the Clever Cloud documentation
Role in this project:
Full-stack Developer
Contributions:153 commits, 87 PRs, 94 pushes in 6 years 11 months
Contributions summary:Clément primarily contributed to the documentation website for Clever Cloud. Their work involved implementing a sidebar navigation, reorganizing content into runtimes and commons sections, and fixing URL structures. They also added and modified templates and assets related to the documentation, ensuring proper display and navigation within the site. Further, they fixed less compilation issues.
Sōzu HTTP reverse proxy, configurable at runtime, fast and safe, built in Rust. It is awesome!
Role in this project:
Back-end Developer
Contributions:38 commits, 1 PR, 1 push in 2 years 1 month
Contributions summary:Clément primarily focused on implementing core functionalities for an HTTP reverse proxy built in Rust. Their initial work involved developing an HTTP/1.1 parser, crucial for handling incoming requests. Subsequent contributions included adding AMQP support and integrating it with a shared bus for command processing. The user also worked on wiring AMQP commands and refining the structure of messages, demonstrating a deep understanding of the proxy's internal workings and configuration mechanisms.
configurableproxyrustsecurityruntime
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Clément Delafargue - Ingénieur Logiciel Senior at Datadog