Derek Xinjie
Software Engineer at Goldman Sachs
Singapore, Singapore
Summary
🤩
Rockstar🎓
Top SchoolDerek Zhuang is a software engineer based in Singapore with seven years of experience building low-latency, distributed systems and polished user interfaces. He currently develops a Raft-based, API-driven distributed scheduling platform at Goldman Sachs and previously engineered Ad Network backends at ByteDance/TikTok, designing OpenRTB-compliant REST APIs and optimising high-throughput request pipelines. Derek combines backend systems work with front-end UX improvements—evidenced by contributions to the popular TEAMMATES open-source project where he improved mobile UI, added instructor-facing components, and helped migrate core infrastructure. His background includes real-time data processing with Apache Flink at Tencent and CS studies at NUS with an exchange at EPFL, reflecting a strong foundation in both systems and product-facing engineering. He also writes about his work on a personal blog, signaling an interest in sharing practical lessons beyond code.
7 years of coding experience
1 year of employment as a software developer
Exchange Study, Computer Science, Exchange Study, Computer Science at EPFL (École polytechnique fédérale de Lausanne)Undergraduate, Computer Science, Undergraduate, Computer Science at National University of Singapore
English, Chinese, German
Github Skills (7)
html10
css10
javascript10
teammates10
angular10
ui-design9
unit-testing8
Programming languages (7)
Github contributions (5)
TEAMMATES/teammates
May 2020 - Jun 2021
This is the project website for the TEAMMATES feedback management tool for education
Role in this project:
Front-end Developer
Front-end DeveloperContributions:88 reviews, 34 commits, 70 PRs in 1 year
Contributions summary:Derek primarily focused on improving the mobile UI of the course enrollment page, addressing awkward word breaks and enhancing the visual feedback of scroll-down buttons. They also added example boxes and components for various question types in the instructor help page to enhance the usability. Additionally, they contributed to the unit tests for a course section, demonstrating a focus on UI/UX improvements and adding new features.
cssjavascriptteammatesfeedback-systemsproject-website
Derek-Hardy/teammates
May 2020 - Apr 2021
This is the project website for the TEAMMATES feedback management tool for education
Contributions:1 review, 4 PRs, 180 pushes in 11 months
cssjavascriptteammatesproject-websitefeedback
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