Julien Kauffmann
Technical Architect at Ubisoft Montréal
Montreal, Quebec, Canada
Summary
🤩
Rockstar🎓
Top SchoolJulien Kauffmann is a Technical Architect with 15 years of experience designing and delivering scalable, secure backend systems for AAA games and online services, currently shaping online architecture at Ubisoft Montréal. He combines deep expertise in Rust, Go, Kubernetes and API-driven services with a strong focus on security, cryptography and algorithmic robustness, driving improvements in DDoS mitigation, service reliability and cost-efficient microservices transitions. Julien has hands-on experience across the full lifecycle—service design, data migration, game-server infrastructure and team coaching—and has presented architecture solutions publicly. An active open-source maintainer, he develops FreeLAN, a peer-to-peer VPN where he implemented core session, key management and HTTPS-capable servers, reflecting his interest in real-world secure networking. Based in Montreal, he brings a pragmatic blend of systems-level thinking and developer mentorship to complex distributed problems.
15 years of coding experience
15 years of employment as a software developer
Deug Computer Science, Deug Computer Science at Université de Haute-Alsace Mulhouse-ColmarMaster's degree Computer science Networks Security, Master's degree Computer science Networks Security at Université Louis Pasteur (Strasbourg I)
French, English, German, Spanish
Stackoverflow
1reputation
0reached
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Github Skills (14)
asynchronous10
http10
user-authentication10
authentication10
c-language10
cprogramming-language10
boost10
network-programming10
openssl10
async10
thread9
multithreading9
hyper-threading9
threaded9
Programming languages (14)
Github contributions (5)
freelan-developers/freelan
Feb 2011 - Jan 2019
The main freelan repository.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 releases, 3974 commits, 26 PRs in 7 years 11 months
Contributions summary:Julien's contributions centered around the implementation of core backend functionalities within the freelan repository. This involved a significant overhaul of session management logic, including the addition of a peer session class, and incorporating key generation and management. Further enhancements were made through the addition of HTTP server functionalities to handle requests, along with the incorporation of user authentication and support for HTTPS.
pppsctp
ereOn/azmq
Apr 2016 - Jul 2016
Contributions:166 commits, 198 pushes, 16 branches in 3 months
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