Jonathan Grim
Senior Frontend Engineer at Booking.com
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolJonathan Grim is a Senior Frontend Engineer based in Amsterdam with nine years of experience crafting user-focused interfaces and design systems at companies like Booking.com, Olo, and Pindrop. He blends hands-on coding in Vue, React, TypeScript, and Tailwind with leadership responsibilities—running teams, hiring, and shaping frontend best practices and observability programs. Jonathan has led design-system initiatives and introduced frontend error-tracking and testing practices that improved developer velocity and product quality. Comfortable switching between individual contributor work and team lead duties, he also mentors engineers through talks and training on accessibility and testing. His background in MIS and a full-stack certification informs a pragmatic approach to building maintainable, user-centered web apps. Outside of product work he experiments with serverless prototyping and mobile React Native solutions, showing a taste for rapid iteration and cross-platform UX.
9 years of coding experience
5 years of employment as a software developer
University of GeorgiaComputer Programming, Computer Programming at Georgia Tech Full Stack Web Development Professional Certification
Stackoverflow
1reputation
0reached
0answers
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Github Skills (30)
playing10
javascript9
ajax9
nodejs9
http-client9
xmlhttprequest8
web-components8
browser8
css8
dice7
web-development7
portal6
react-tooltip6
single-page6
pkce6
Programming languages (6)
Github contributions (5)
jongrim/roll-with-me
Nov 2020 - Dec 2022
Digital tools for playing roleplaying games online
Contributions:170 commits, 276 PRs, 149 pushes in 2 years 1 month
gamegamesonline-gamesroleplaying-gamesroleplaying
Playabl-io/playabl
Dec 2021 - Mar 2023
Contributions:2 reviews, 157 commits, 347 PRs in 1 year 3 months
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