Stephane Landelle
Chief Technology Officer at gatling
Paris, Ile-de-France
Summary
🤩
RockstarStephane Landelle is a seasoned technology leader and CTO based in Paris with 11 years of hands-on engineering and open-source experience. He blends strategic product leadership with deep backend expertise, having contributed performance and reliability fixes to high-profile projects like Gatling, Netty, AsyncHttpClient and Pebble. Known for squeezing latency out of systems, he’s improved caching, resource management and incremental compilation while also hardening security-sensitive codepaths. Stephane moves fluidly between core library work and load-testing at scale, reflecting a practical focus on measurable performance gains. As Gatling’s CTO, he pairs day-to-day coding instincts with a product-minded view of observability and developer ergonomics.
11 years of coding experience
Stackoverflow
6,413reputation
239kreached
406answers
0questions
scala
top-5%
performance-testing
top-5%
Github Skills (46)
json-parser10
json10
caching10
utilities10
strings10
messaging-system10
jms10
compile-time10
netty10
back-end-development10
loadtest10
text-manipulation10
jsonp10
http10
incremental-compiler10
Programming languages (15)
Github contributions (5)
AsyncHttpClient/async-http-client
Feb 2015 - Aug 2020
Asynchronous Http and WebSocket Client library for Java
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1669 commits, 211 PRs, 2047 pushes in 5 years 6 months
Contributions summary:Stephane primarily contributed to the back-end logic and configuration of the asynchronous HTTP and WebSocket client library. Their commits focused on refactoring the code, including the use of POJO conventions and implementing functionality to handle various aspects of HTTP and WebSocket communications. The user's work involved modifying core components such as the configuration, channel management, and response handling, with specific attention to optimizing performance and addressing code style conventions.
asynchronousasynchttpclientclient-libraryhttp-clientwebsocket
gatling/gatling
Feb 2015 - Jan 2023
Modern Load Testing as Code
Role in this project:Back-end Developer
Back-end DeveloperContributions:127 reviews, 4729 commits, 282 PRs in 8 years
Contributions summary:Stephane focused on enhancing the Gatling core functionality by modifying the JMS module. Their work involved changes to the internals and testing aspects, including adjusting timeouts, handling message tracking, and supporting Java and Kotlin integrations. They also improved the handling of resource management, and updated the code and its documentation to reflect these changes.
gatlingload-testingloadtestingtestingscala
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