Deni Cho is a Senior Frontend Developer based in Munich with 9 years of experience building fast, user-focused web applications using React and modern front-end tooling. He has a proven track record improving performance and developer velocity—breaking monoliths into smaller bundles to cut bundle sizes by up to 40% and migrating test suites to Vitest for faster ESM-native testing. Deni has shipped data visualization and e-commerce experiences at scale for TikTok Shop and Tokopedia and contributes to open-source projects like Spectrum where he improved UX and email notification flows. He combines a passion for clean, reusable code with a pragmatic eye for real user experience and measurable performance gains, and he’s quietly invested in mentoring through part-time teaching and community participation.
9 years of coding experience
7 years of employment as a software developer
Informatics, Informatics at Universitas Atma Jaya Yogyakarta
Contributions:7 commits, 5 PRs, 9 comments in 2 days
Contributions summary:Deni primarily worked on improving the user experience and wording in the email notification templates. They updated the language in several email templates related to thread notifications and direct messages. Additionally, the user contributed to the composer component, implementing an action to set the last active thread when the composer is closed, enhancing user navigation. Finally, they merged the email wording updates into the project.
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