Sébastien Séjourné
Infrastructure Architecture Advisor at CMC Electronics
Montreal, Quebec, Canada
Summary
👤
Senior🎓
Top SchoolSébastien Séjourné is an Infrastructure Architecture Advisor with over 25 years of experience turning IT infrastructures into strategic, sustainable assets. He combines deep technical leadership across cloud, networking, storage and big data with pragmatic ITIL and DevOps practices to deliver scalable, cost-effective architectures. He has led large-scale transformations at OVHcloud and enterprise migrations to private cloud, introducing FinOps, open-source tooling and automation to reduce costs and technical debt. Known for calm crisis management and analytical rigor, he maps complex problems visually to align stakeholders and drive measurable improvements. Fluent in French and professional in English, he favors FOSS solutions and continuous experimentation with AI and automation to anticipate future needs. Based in Montreal, he recently drove CMMC compliance design for endpoint management, balancing rapid remediation with long-term network and datacenter security.
11 years of coding experience
20 years of employment as a software developer
Systems and Networks, Systems and Networks at EPITA: Ecole d'Ingénieurs en InformatiqueEDHEC Business SchoolBTS Informatique Industrielle, BTS Informatique Industrielle at Lycée Nicolas Appert
French, English
Github Skills (31)
osrm5
cloudera5
tencent-cloud5
map-matching5
puppet5
offline-maps5
javascript5
openstreetmap4
apache-hadoop4
osmand4
alibabacloud4
apache3
domoticz3
hadoop2
patch2
Programming languages (4)
Github contributions (5)
ssejourne/shibboleth-vagrant
Dec 2014 - Aug 2015
Contributions:1 release, 103 commits, 47 pushes in 8 months
ssejourne/puppet-cloudera
May 2015 - Apr 2018
Contributions:6 pushes, 4 branches in 2 years 11 months
apache-hadooppuppetpuppet-moduleapachehadoop
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