Yohan Legat
Staff Software Engineer at Monadic
Buenos Aires, Autonomous City of Buenos Aires, France
Summary
👤
Senior🎓
Top SchoolYohan Legat is a Staff Software Engineer and founder with 14 years of experience building scalable, event-driven systems and guiding teams through complex migrations from monoliths to microservices. Based in Buenos Aires and working across Europe and Latin America, he blends hands-on Java back-end development with architecture leadership, event sourcing, and event standardization work at companies like BlaBlaCar and Qonto. He has led teams, run event storming workshops, authored architecture decision records, and helped design cross-team error and event standards that improved interservice communication. As an open-source contributor he fixed real-world bugs in ippontech/tatami, touching both front-end templating and back-end un-favoriting logic—illustrating his ability to span full-stack concerns. With an academic background in Databases & AI and early experience automating operations, he pairs rigorous engineering fundamentals with entrepreneurial drive from founding Monadic.
14 years of coding experience
11 years of employment as a software developer
Master 2 (M2), Databases & Artificial Intelligence, Master 2 (M2), Databases & Artificial Intelligence at Université de Bourgogne
english (toeic: 910), French, Spanish
Stackoverflow
113reputation
517kreached
1answer
2questions
Github Skills (15)
javas10
javascript10
back-end-development10
java10
mustache9
rest-api8
api-rest8
restful-api8
api-design8
cassandra8
grpc-java6
lambda6
spring-webflux6
project-reactor6
grpc6
Programming languages (2)
Github contributions (5)
ippontech/tatami
Apr 2012 - May 2012
An Open Source enterprise social network
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits in 6 days
Contributions summary:Yohan implemented the functionality to remove tweets from the favorites list, addressing a reported bug in the process. This involved modifications to the front-end JavaScript to call the appropriate API, changes to the back-end Java code in the controller, service, and repository layers to handle the tweet un-favoriting logic. Further, they utilized Mustache.js to implement templating in the front-end for improved tweet rendering.
social-networksocial-mediasocial-enterpriseenterprise
ylegat/workshop-event-sourcing
Jan 2017 - Jan 2017
Contributions:3 commits, 173 pushes, 97 branches in 1 day
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