Jonathan Lagneaux
Consultant And Trainer at Zenika
Brest, Brittany, France
Summary
👤
Senior🎓
Top SchoolJonathan Lagneaux is a seasoned backend and mobile consultant and trainer based in Brest, France, with 11 years of experience building high-performance Kotlin and Android systems. He combines hands-on engineering—shipping production services, GraphQL and event-driven microservices—with leadership roles as a tech lead, auditor, and community organizer at Zenika and top fintech and retail teams. Jonathan excels at pragmatic architecture and developer productivity: introducing Kotlin APIs, modularizing large Android apps, setting up CI/CD (Bitrise, GitLab), and applying functional patterns with Arrow. A regular speaker and trainer on Kotlin, Quarkus, Git and blockchain, he also runs audits and mob-programming sessions to raise team quality. Notably, he has repeatedly delivered first-of-their-kind Kotlin solutions (e.g., first Kotlin API at Swan) and driven performance improvements in heavy-load betting systems. His profile blends deep technical craft with a passion for knowledge sharing and practical, testable designs.
11 years of coding experience
8 years of employment as a software developer
Diplôme d'ingénieur Ingénierie, Diplôme d'ingénieur Ingénierie at ENIB
English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (68)
testing10
gradle-plugin10
matcher10
verification10
tdd10
mocking10
kotlin10
coil10
polymorphism9
static-analysis9
kotlin-android9
kotlin-multiplatform9
coroutines9
assertion-framework9
ktor9
Programming languages (9)
Github contributions (5)
Gosunet/GereTaKoloc
May 2015 - Nov 2020
Contributions:14 PRs, 22 pushes, 2 branches in 5 years 7 months
Gosunet/workshop-initiation-solidity-web3
Oct 2022 - Dec 2022
Contributions:2 reviews, 22 commits, 5 PRs in 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.