Juanje Croissier
Principal Software Engineer at Red Hat
Las Palmas de Gran Canaria, Spain
Summary
👤
Senior🎓
Top SchoolJuanje Croissier is a Principal Software Engineer with 18 years of experience building and integrating Linux distributions, CI/CD pipelines, and scalable infrastructure, now driving quality and delivery at Red Hat. He blends deep hands-on expertise in Debian/Ubuntu derivatives, kernel CI, osbuild/OSTree and containerized pipelines with strong DevOps and mentoring skills, having contributed to high-profile projects like Chef Infra and GNOME Hamster. Juanje has a track record of creating installers, hardware detection systems and live images (Metadistros and early work that influenced Ubuntu’s installer), plus practical SRE work across multiple architectures. He excels at untangling legacy code, automating complex build/test flows, and improving team coordination and quality of life through continuous delivery. Based in Las Palmas de Gran Canaria, he pairs formal computer science training with an unusual side background in physical activity and coaching, which informs his pragmatic, human-centered approach to tooling and mentorship.
18 years of coding experience
16 years of employment as a software developer
BsC, Computers Science, BsC, Computers Science at Universidad de Las Palmas de Gran Canaria
English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (21)
python10
ruby10
chef-client10
automation10
gnome10
chef-solo10
automations10
testing9
dbus9
devops9
i18n-js8
cli8
ember-i18n8
command-line-interface8
command-line8
Programming languages (10)
Github contributions (5)
projecthamster/hamster
May 2008 - May 2009
Role in this project:
Back-end Developer
Back-end DeveloperContributions:48 commits in 1 year
Contributions summary:Juanje primarily contributed to bug fixes and feature enhancements within the GNOME time tracker application. Their work included importing necessary modules, fixing an issue with the date function, and improving the HTML reports. The user also added DBUS interface implementation and adjusted i18n strings for internationalization support. Additionally, the user resolved an exit error related to unfinished activities.
gnome-shell-extensiongnometracker
chef/chef
Mar 2012 - Jun 2012
Chef Infra, a powerful automation platform that transforms infrastructure into code automating how infrastructure is configured, deployed and managed across any environment, at any scale
Role in this project:Backend & DevOps Engineer
Backend & DevOps EngineerContributions:8 commits in 3 months
Contributions summary:Juanje primarily contributed to improving the functionality and stability of Chef Infra. Their work included fixing and enhancing the 'knife' command-line tool, specifically related to run list management (adding and removing entries). They also addressed a JSON parsing issue and added tests to cover potential nesting issues, demonstrating a focus on code quality and maintainability. Furthermore, they implemented changes related to ownership verification within the deployment process.
devopsdeploymentansibleinfrastructureinfra
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.