Felix Jahn
Senior Front-end Developer at Toptal
Germany
Summary
👤
Senior🎓
Top SchoolFelix Jahn is a seasoned front-end developer with more than 15 years of software development experience and a current focus on delivering polished UIs. At Toptal since 2020, he leads frontend work as a Senior Front-end Developer, shaping architecture and implementation for clients. His expertise centers on React, TypeScript, JavaScript, HTML5 and CSS3, with strong tooling knowledge in Redux, Webpack, Jest, and React Testing Library. He has a rich freelancing background, driving frontend decisions and implementing web clients for enterprise software—including a browser-based energy consumption optimization platform—as well as browser games and CMS frameworks. Felix holds a Diplom-Informatiker FH in Media and Computer Science from Beuth Hochschule Berlin, with a thesis graded very good and an overall good grade. Based in Germany, he combines technical depth with a pragmatic delivery mindset and a track record of turning complex requirements into reliable, scalable UI solutions.
9 years of coding experience
16 years of employment as a software developer
Degree in computer science (Diplom-Informatiker FH), Media and Computer Science, Thesis grade: very good, overall grade: good, Degree in computer science (Diplom-Informatiker FH), Media and Computer Science, Thesis grade: very good, overall grade: good at Beuth Hochschule für Technik Berlin (ehemals Technische Fachhochschule Berlin)
English, German, Spanish, Russian
Github Skills (120)
hot-reload10
typescript-definitions10
form-validation10
declarations10
type-definitions10
javascript10
filtering10
typescript10
redux-form10
dts10
react-tooltip10
webpack-plugin10
validation9
jackson9
tooltips9
Programming languages (3)
Github contributions (5)
Q-Man/DefinitelyTyped
Apr 2016 - Mar 2018
Contributions:4 pushes in 1 year 11 months
type-definitionshigh-qualitydefinitionstypescriptquality
Q-Man/happo-storybook-userevent
May 2023 - May 2023
Contributions:9 pushes, 1 branch in 3 days
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