Arnauld Loyer
Technical Design Authority at RATP Smart Systems
Le Chesnay-Rocquencourt, Ile-de-France
Summary
👤
Senior🎓
Top SchoolArnauld Loyer is a seasoned technical design authority and architect with 15+ years delivering large-scale, product-oriented systems, currently leading architecture and a 40-person team at RATP Smart Systems for mission-critical ticketing and mobility platforms. He blends hands-on software craftsmanship (DDD, BDD, TDD) with organizational transformation, having served as CTO at Arolla where he grew and mentored an 80-consultant community. His experience spans cloud-ready microservice architectures, DevOps adoption, and high-availability event-driven systems for transport and finance, with deployments proven in live events like the Rugby World Cup and the Paris Olympics rollout. A former teacher of software architecture and long-time coach, he’s known for pragmatic strategic advice to CEOs and for making complex legacy landscapes testable and product-focused. Notably, his background in numerical fluid mechanics hints at a strong analytical mindset that informs his systematic approach to architecture and testing.
15 years of coding experience
19 years of employment as a software developer
P'/PC*, P'/PC* at Classe Préparatoire, Lycée Clémenceau NantesDEA, Numerical Fluid Mechanics, DEA, Numerical Fluid Mechanics at Ecole centrale de Nantes
English, French
Github Skills (47)
startup10
code-kata10
eclipse-plugin10
jbehave10
extraction10
slicing10
intellij-idea9
sbt9
pdf9
claims9
pdf-generation9
eclipse9
xml8
webserver8
sbt-plugin8
Programming languages (6)
Github contributions (5)
Arnauld/jwtd
May 2021 - Jun 2022
Simple WebServices that sign JWT's claims (with private RSA key)
Contributions:9 releases, 2 reviews, 39 commits in 1 year 1 month
rsasignrustrsa-keyclaims
Arnauld/CQRS-Ramblings
Aug 2011 - Oct 2016
Contributions:69 commits, 2 pushes in 5 years 2 months
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.