Yoann Dubreuil
Principal Site Reliability Engineer at Elastic
Greater Rennes Metropolitan Area France
Summary
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Rockstar🎓
Top SchoolYoann Dubreuil is a Principal Site Reliability Engineer with 14 years of experience building and operating large-scale Linux-based cloud services, currently contributing to Elastic Cloud. He blends deep systems engineering and SRE practices with a developer mindset, having progressed from support and software roles to technical leadership at CloudBees and Elastic. Yoann is an active open-source contributor to Jenkins—fixing restart, Java detection, CLI proxy issues and performance problems—and has automated complex plugin build flows using Docker for Blue Ocean. Comfortable across private OpenStack clouds and modern public cloud infrastructure, he has a track record of designing CI/CD platforms and mentoring teams. Based in the Rennes area, he pairs pragmatic operational troubleshooting with automation-first solutions and a knack for surfacing subtle runtime issues across JVM, plugins, and Linux interactions.
14 years of coding experience
20 years of employment as a software developer
Master's degree in Engineering, Computer Sciences, Master's degree in Engineering, Computer Sciences at Institut national des Sciences appliquées de RennesBachelor of Science (BS), Computer Sciences, Bachelor of Science (BS), Computer Sciences at IUT de Vannes
French, English
Stackoverflow
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Github Skills (22)
docker10
bash10
dockers10
java10
cicd10
javas10
automation10
jenkins10
jenkins-ci10
automations10
devops10
git9
linux9
cli9
maven9
Programming languages (14)
Github contributions (5)
jenkinsci/blueocean-plugin
Jun 2016 - Jun 2017
Blue Ocean is a reboot of the Jenkins CI/CD User Experience
Role in this project:
DevOps Engineer & Automation Engineer
DevOps Engineer & Automation EngineerContributions:11 commits, 50 PRs, 25 pushes in 11 months
Contributions summary:Yoann primarily focused on automating the build and development process for the Blue Ocean plugin. They developed a local build script utilizing Docker to simulate the Jenkins Pipeline, streamlining the build process. Furthermore, they enhanced the build process by integrating Git data and creating a development image. The user also contributed to building the official BlueOcean image for distribution.
jenkinsbluejenkins-cijenkins-pluginjenkins-api-plugin
jenkinsci/jenkins
Mar 2015 - Mar 2017
Jenkins automation server
Role in this project:Backend & DevOps Engineer
Backend & DevOps EngineerContributions:6 PRs, 31 comments in 2 years
Contributions summary:Yoann primarily contributed to fixing bugs related to Jenkins's restart functionality, focusing on issues arising from JRE and plugin updates on Linux systems. They addressed problems with how Jenkins identifies the Java executable and resolved issues with proxy connections in the CLI. Moreover, the user enhanced the system by implementing a fix for a performance issue in merging tool installer lists and improved the CLI's logging and debugging capabilities.
continuous-deploymentjenkinscontinuous-testinggroovydevops
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