René Viering is a freelance senior web engineer based in Berlin with over a decade of hands-on experience building single-page applications and lightweight, testable frontend architectures. Since 2018 he has helped product teams across industries—eBay, ABOUT YOU, smava, nu., and most recently Babbel—accelerate launches and improve platform reliability through pragmatic JavaScript, React and Node.js solutions. He favors lean libraries and clear abstractions that prioritize user needs and maintainability, treating software development as a collaborative team sport. Known for quickly integrating into diverse teams as a contractor, he combines technical craft with a focus on communication and delivery. Beyond shipping features, René often drives tooling and platform improvements that reduce friction for other engineers.
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