Christian Steinmann
Senior Frontend Developer at Deutsche Bahn
Großfischlingen, Rhineland-Palatinate, Germany
Summary
🤩
Rockstar🎓
Top SchoolChristian Steinmann is a Senior Frontend Developer with over a decade of hands-on web development experience, specializing in modern JavaScript stacks like React, Next.js, TypeScript and RxJS. He designs and implements full web and mobile applications, blending frontend architecture, UX-aware engineering and backend integration (Node.js, Postgres, MongoDB, Redis). Currently contributing at Deutsche Bahn and freelancing for GfK, he brings enterprise-grade discipline from large-scale projects and a long history of freelance client delivery. An active open-source contributor, he modernized the high-performance inferno UI library by converting core modules to TypeScript and improving type safety and tests. Based in Großfischlingen, Germany, he combines deep practical experience since 2004 with formal training in applied computer science, and is known for turning legacy code into typed, maintainable systems.
11 years of coding experience
10 years of employment as a software developer
Bachelor of Science, Angewandte Informatik, Bachelor of Science, Angewandte Informatik at Berufsakademie MannheimFachinformatiker, Anwendungsentwicklung, Fachinformatiker, Anwendungsentwicklung at Provaris GmbH
German, English
Github Skills (8)
inferno10
typescript10
javascript10
typescripts10
react10
typescript-types10
jsx9
redux9
Programming languages (2)
Github contributions (5)
infernojs/inferno
Sep 2016 - Sep 2016
:fire: An extremely fast, React-like JavaScript library for building modern user interfaces
Role in this project:
Front-end Developer
Front-end DeveloperContributions:15 commits, 13 pushes, 6 comments in 5 days
Contributions summary:Christian primarily focused on modernizing the Inferno JavaScript library, converting existing code to TypeScript and adding type definitions. Their contributions included converting prop-renderers, renderToString.stream, redux files, and createClass to TypeScript. They also added and updated type definitions for inferno-component, inferno-router, and the core inferno library to improve type safety and developer experience. Further commits resolved lint errors and added tests to the connect functionality.
javascript-libraryreactinferno-componentjavascriptuser-interfaces
Schnueggel/wanamu-frontend-2
Nov 2015 - Jul 2016
Contributions:157 pushes, 3 branches in 8 months
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