Julian Chu
Senior Software Engineer at Delivery Hero
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolJulian Chu is a Senior Software Engineer based in Berlin with a decade of experience building cloud-native backends and automation for finance and industrial domains. He blends strong Golang and C# backend skills with frontend React/Angular experience and a practical DevOps/TDD mindset, having designed microservice payment platforms and CI pipelines. His background in mechanical engineering and microsystems informs a rare cross-disciplinary strength: he has shipped production automation and PLC-integrated machines that improved yields by up to 200%, then translated those process insights into robust software. An active contributor to notable open-source work, he implemented complex deciphering and streaming logic for a popular Go YouTube downloader, improving correctness and test coverage. Colleagues rely on him to bridge product, QA and infrastructure concerns, turning ambiguous requirements into scalable, testable systems.
10 years of coding experience
10 years of employment as a software developer
Bachelor's degree, Mechanical Engineering, Bachelor's degree, Mechanical Engineering at National Taiwan UniversityMaster's degree, Microsystem and Microelectronics, Master's degree, Microsystem and Microelectronics at Technische Universität Chemnitz
English, Chinese, German, Japanese
Github Skills (6)
regular-expression10
go10
youtube-api10
apidoc9
api9
json7
Programming languages (10)
Github contributions (5)
kkdai/youtube
Apr 2020 - Oct 2021
Download Youtube Video in Golang
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 releases, 13 reviews, 126 commits in 1 year 6 months
Contributions summary:Julian contributed significantly to the `youtube` repository, which aims to download YouTube videos using Golang. Their primary focus was on implementing the logic to handle ciphered URLs, a common method used by YouTube to protect video streams. They added and refined the `decipher` and `getStreamUrl` functions, incorporating regular expressions to extract and process information from JavaScript files. Furthermore, the user refactored the code and added test cases to enhance the functionality and maintainability of the project.
golangyoutubego
Julian-Chu/Leetcode-golang
Dec 2018 - Aug 2022
Contributions:264 pushes in 3 years 8 months
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