Zachary Koo
Full Stack Developer at Bit Complete
Canada
Summary
👤
Senior🎓
Top SchoolZachary Koo is a full stack developer with a decade of experience building reliable, production-grade web platforms from front-end UIs to backend services. Based in Tokyo, he has driven feature delivery and migrations at startups like Disco and GDM, improving maintainability and test coverage while implementing systems such as end-to-end video upload pipelines, LLM-driven learning assistants, and CSV importers. He brings a pragmatic engineering mindset—standardizing tooling (Redux, React Query, ESLint), introducing comprehensive testing ecosystems, and automating integration suites to reduce regressions. Zachary’s background spans Node.js, Go, TypeScript, React, PostgreSQL and cloud CI/CD, and his early work in algorithm teaching and bio/CS studies gives him a knack for clear technical communication and thoughtful system design. Notably, he pairs hands-on feature work with developer-experience improvements that speed team delivery and lower long-term maintenance costs.
11 years of coding experience
4 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at University of CalgaryExchange program to learn about language and business culture in Japan, Exchange program to learn about language and business culture in Japan at Senshu University
English, Chinese, Japanese
Github Skills (3)
backend7
pkg4
go3
Programming languages (3)
Github contributions (5)
zacharykoo/zacharykoo_v2
Apr 2023 - Nov 2025
Contributions:21 pushes, 3 branches in 2 years 7 months
zacharykoo/Japanese-Learning
Jan 2025 - Apr 2026
Contributions:8 pushes in 1 year 3 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.