Si Kim
Software Engineer at Snap Inc.
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolSi Kim is a software engineer with 8 years of experience building reliable, low-latency, cloud-native systems and polished user interfaces from Seattle. Currently on Platform Integrity at Snap, Si previously led performance and architecture initiatives at Raya—transforming recommendation services into microservices that cut p95 latency 10x and boosting engagement—and built scalable data and UX tooling at Divvy Homes. Comfortable across Golang, Node.js, Kubernetes, gRPC, and React, Si has shipped production features that improved QPS by 4x, reduced infrastructure costs, and increased monetization metrics. An active open-source contributor to the popular qBittorrent project, Si focuses on UX improvements and robust error handling, reflecting a blend of front-end polish and backend reliability. Notably, Si designs frameworks that ease migrations (e.g., Protobuf-less gRPC patterns) and dynamic experiment enrollment, enabling rapid product iteration without slowing engineering velocity.
8 years of coding experience
4 years of employment as a software developer
Ernest Manning High SchoolHonours Bachelor of Science, Honours Bachelor of Science at University of Toronto
English, Korean, Japanese
Github Skills (10)
c-language10
front-end-development10
cprogramming-language10
qt10
ui-design9
graphical-user-interface9
user-interface9
cross-platform8
torrent8
bittorrent8
Programming languages (5)
Github contributions (5)
qbittorrent/qBittorrent
Jan 2021 - Feb 2021
qBittorrent BitTorrent client
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:16 reviews, 10 commits, 6 PRs in 10 days
Contributions summary:Si primarily contributed to the user interface and GUI elements, adding functionality related to RSS feeds and category management. They modified the about and translator pages, adding hyperlinks and removing obsolete information. Additionally, the user refactored apply button logic within the options dialog and implemented error handling for the new category dialog. These changes demonstrate a focus on enhancing the user experience and improving the application's functionality.
qbittorrentbittorrentc-plus-plustorrent-clienttorrent
zzandland/Algo-DS
Mar 2019 - Oct 2021
Contributions:147 pushes, 1 branch in 2 years 7 months
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