Emilien Letestu
Développeur Back-end at Treezor - Enable Creative Banking
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolEmilien Letestu is a pragmatic back-end developer with 9 years’ experience building and modernizing PHP-based platforms, currently delivering banking infrastructure at Treezor in Paris. A Symfony enthusiast who tolerates Laravel when needed, he has led transitions from monoliths to modular architectures and introduced CI/CD, automated testing and ADR patterns across teams. As Lead Backend Developer at Zelty he ran onboarding and hiring, planned sprints with the PO, and built data pipelines including a datalake, async processing with AWS SQS/Lambda, and a Presto query builder. He combines hands-on coding (APIs, query builders, Metabase dashboards) with process improvements—introducing Scrum, feature flags and localization tooling—to accelerate delivery. Comfortable in legacy refactors as well as greenfield services, he brings a developer-first approach to reliability and observability in production systems.
9 years of coding experience
5 years of employment as a software developer
Deug sciences économiques, Deug sciences économiques at Université de Caen NormandieChef de projet web Programmation / développeur informatique général, Chef de projet web Programmation / développeur informatique général at OpenClassrooms-IESA multimedia
English, Spanish
Github Skills (10)
php10
bundle10
symfony9
symfony-bundle9
php-framework9
doctrine5
dbal4
doctrine-orm4
orm3
trend1
Programming languages (1)
Github contributions (5)
EmilienLetestu/naoReboot
Sep 2017 - Apr 2018
Contributions:834 commits, 425 pushes, 70 branches in 6 months
EmilienLetestu/Louvre
May 2017 - Jun 2018
Contributions:86 pushes, 2 branches in 1 year
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