Julien Sebag
Senior Front End Developer at Booking.com
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolJulien Sebag is a Senior Front End Developer and UX engineer with seven years of experience combining product design, accessibility, and modern front-end engineering to deliver performant web experiences. He has a proven track record owning end-to-end projects—from rebuilding a CMS in React that cut load times by 15% and met WCAG standards to shipping full-stack Next.js sites with custom CMS and JWT-protected admin flows. Comfortable across HTML/SCSS/JS/TS, React, Tailwind and testing with Cypress, Julien bridges design and implementation thanks to formal training in UX, web development and AI engineering. Based in Amsterdam and fluent in French and English, he brings a designer’s attention to components and a developer’s rigor to testing and performance optimization. Notably, his background includes building global design systems at Nielsen and acting as Scrum Master early in his career, giving him both product and team leadership experience.
7 years of coding experience
7 years of employment as a software developer
Bootcamp, AI Engineering, Bootcamp, AI Engineering at IronhackMSc, Creative Technology, MSc, Creative Technology at Middlesex UniversityMaster 1, Marketing publicité, Master 1, Marketing publicité at ISCOM
French, English
Stackoverflow
1reputation
49reached
0answers
1question
Github Skills (91)
css-in-js10
styled-components10
cloning10
nodejs10
mongodb10
asynchronous10
css10
orm10
odm10
react10
react-testing-library9
vue-testing-library9
testing9
cypress9
svelte-testing-library9
Programming languages (9)
Github contributions (5)
JulSeb42/tsx-library
May 2022 - Jul 2023
Contributions:250 pushes, 1 branch in 1 year 2 months
fajny-css/fajny-css
Sep 2019 - Jul 2022
Contributions:21 commits, 21 pushes, 1 branch in 2 years 10 months
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