Tatsuya Tsuri
Freelance Web Developer - PM BrSE at Freelance webdeveloper
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolTatsuya Tsuri is a freelance web developer and PM/BrSE with 11 years of professional experience combining nearly a decade in Japan's financial sector with 7+ years of full-stack engineering and system architecture. He has led end-to-end projects across telecommunications, education, logistics, and tourism, launching a B2C portal that scaled to over 1M DAU and delivering zero-downtime upgrades while coordinating Japan–Vietnam offshore teams. Technically versatile in Python, TypeScript, Go, PHP and Java, he designs cloud-native systems on AWS (ECS Fargate, Aurora, Lambda) and CI/CD-backed deployments with Terraform and GitHub Actions. His finance background informs practical FinTech consulting and risk-aware system design, exemplified by a domestic automated swing trading system now achieving >60% win rate using LightGBM and DuckDB. A UI/UX-minded engineer comfortable with Figma/Sketch, he’s currently exploring LLMs and building an AI Vtuber with OpenAI and Python to bring generative AI into user-facing products. Reliable in cross-border communication (Japanese fluent) and rapid learning, he blends product sensibility with hands-on delivery for high-availability, real-world systems.
11 years of coding experience
学士, Economics, 学士, Economics at 関西大学
Chinese, Japanese, 韓国語
Github Skills (136)
json-parser10
programming-language10
json-data10
displays10
emoji10
windows10
gesture10
ruby10
automation10
certificate-pinning10
public-key-pinning10
firebase10
swiftui10
virtual-camera10
urlrequest10
Programming languages (9)
Github contributions (5)
tattn/NFCReader
Aug 2019 - Feb 2021
Scan and decode NFC tags on iOS
Contributions:1 release, 17 commits, 4 PRs in 1 year 5 months
scanswiftiosdecodenfc
tattn/Y-BookShare-Backend
Jul 2015 - Aug 2015
Contributions:19 PRs, 187 pushes, 2 branches in 1 month
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