Johan Le Lan
Chief Technology Officer at MGDIS
Brittany, France
Summary
👤
Senior🎓
Top SchoolJohan Le Lan is a seasoned technology leader and CTO based in Brittany, France, with 11 years of experience driving architecture, platform strategy and delivery at MGDIS. He combines hands-on engineering roots (from .NET and Java to full‑stack JavaScript) with leadership of multi-disciplinary teams—designing a company-wide design system, core framework (IoC, k8s, multi‑tenancy) and migrating legacy services to cloud‑ready microservices. Known for rapid, high-stakes delivery, he helped coordinate the build and 24/7 operation of 16 regional COVID-19 relief platforms in two weeks. Johan mentors architects and product teams, balances technical governance with feature team autonomy, and brings a pragmatic focus on observability, security and scalability. His background in information systems architecture and long tenure at a single organisation give him deep institutional knowledge and a bias for sustainable, production-hardened solutions.
12 years of coding experience
12 years of employment as a software developer
Master d'architecture des Systèmes d'Information en Réseau, Sciences informatiques et de l'information, 14.7, Master d'architecture des Systèmes d'Information en Réseau, Sciences informatiques et de l'information, 14.7 at Université de Bretagne-Sud
French, English
Stackoverflow
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Github Skills (40)
cmis10
expressjs9
parser9
chemistry9
ajv9
json-document9
json-schema-validator9
rfc8
nodejs8
middleware8
json-schema8
redis7
bull7
bower7
job-scheduler7
Programming languages (4)
Github contributions (5)
MGDIS/lightweightCMISserver
Nov 2014 - May 2021
A simple CMIS 1.1 server based on chemistry opencmis
Contributions:4 releases, 4 reviews, 112 commits in 6 years 7 months
cmischemistry
johanlelan/moleculerjs
Nov 2018 - Mar 2019
Contributions:14 commits, 9 pushes, 1 branch in 3 months
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