Guillaume Jasmin is a Paris-based software leader with 10 years of full-stack JavaScript experience, dedicated to delivering user-centric web applications. As a freelance Lead Développeur - TypeScript, he steers architecture, roadmaps, testing strategies and junior developer growth across React/TypeScript/Node projects, with a focus on migrating teams to TypeScript and building robust test suites. His portfolio ranges from AS Monaco’s Motus-style World Cup game to Entourage, OuiCar, and EasyMovie, illustrating his ability to ship across sports, social platforms and SaaS products. Previously, he led front-end at TeamTO and drove design-system, testing and CI/CD initiatives at Qare.fr, mentoring dozens of developers and advocating TDD and hexagonal architecture. Based in Paris, he works with React, Redux, Next.js, GraphQL and CI/CD to deliver scalable, production-ready software that prioritizes user experience.
11 years of coding experience
9 years of employment as a software developer
DUT SRC, DUT SRC at IUT de Troyes
Licence 3, Communication multimédia, Licence 3, Communication multimédia at Université de Franche-Comté
Baccalauréat Scientifique, Baccalauréat Scientifique at Lycée François 1er
Développeur interactif (CRMA), Développeur interactif (CRMA) at GOBELINS, l'école de l'image
Contributions:27 commits, 16 pushes, 1 branch in 4 months
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