Sébastien Warin
Product & Engineering Director at ENKI Home
Lille, Hauts-de-France
Summary
👤
Senior🎓
Top SchoolSébastien Warin is a Product & Engineering Director based in Lille with over 20 years of hands-on experience in cloud, IoT and digital platforms, and 11 years in senior leadership roles guiding product, UX and engineering teams. He has led the ENKI Smart Home product vision for ADEO/Leroy Merlin, driving HEMS and energy-coaching features while transforming teams toward data-driven, agile delivery. As a former CTO at PoolCop and xBrainSoft he designed cloud-native, high-throughput architectures and embedded firmware stacks, building solutions that handled hundreds of millions of telemetry points per day. Founder of Constellation, he created an extensible IoT orchestration platform and cultivated an open-source ecosystem used in education and industry. A pragmatic technologist, he still contributes to core libraries like MQTTnet, improving asynchronous concurrency and broker session handling. He blends product sensibility with deep full-stack engineering—firmware to cloud—making complex IoT systems practical and scalable.
11 years of coding experience
8 years of employment as a software developer
Master of Computer Sciences, Master of Computer Sciences at SUPINFO
Stackoverflow
56reputation
3kreached
1answer
0questions
Github Skills (18)
asynchronous10
async10
net10
mqtt10
broker10
dotnet10
mqttnet10
asp-net10
message-broker10
dotnet-core10
csharp10
concurrency10
testing9
unit-test9
netcore8
Programming languages (10)
Github contributions (5)
dotnet/MQTTnet
May 2018 - May 2018
MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from http://mqtt.org/.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 commits, 3 PRs, 9 comments in 3 days
Contributions summary:Sébastien primarily contributed to the MQTTnet library by refactoring and implementing core functionalities related to asynchronous operations, topic matching, and server-side session management. Their commits included changes to `AsyncAutoResetEvent`, `AsyncLock`, and the topic filter comparer, enhancing the library's internal concurrency handling and message dispatching capabilities. The user also addressed integration issues by adjusting protocol version settings, and improved code style to maintain consistency with the project's standards.
net-librarymqtt-servernetframeworkmqttnetiot-platform
sebastienwarin/MQTTnet
May 2018 - Feb 2024
Contributions:9 pushes in 5 years 10 months
net-librarymqtt-serverbrokermqttcommunication
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