Yuta Tsuji
Associate Professional Services Consultant
Chiyoda, Japan
Summary
🤩
Rockstar🎓
Top SchoolYuta Tsuji is an Associate Professional Services Consultant at AWS with 11 years of engineering experience spanning software, game, and research labs, specializing in C++, C#, Python, ML/GenAI, physically based graphics, and cloud-native solutions. He has moved between R&D and product-focused roles at companies like CyberAgent, pixiv, and Fixstars, bringing practical experience with Unity, Unreal, Flutter and desktop frameworks such as WPF. His open-source contributions include backend work on go-iap, improving cross-store receipt verification and subscription handling—a detail that highlights his fluency in robust, security-minded integrations. With a Master’s in Pure and Applied Physics from Waseda, he blends rigorous academic training with hands-on engineering to solve computationally demanding problems. Colocated in Chiyoda, Japan, he excels at bridging research prototypes and production systems, often surfacing subtle edge cases in complex pipelines.
11 years of coding experience
4 years of employment as a software developer
Master's degree, Pure and Applied Physics, Master's degree, Pure and Applied Physics at WASEDA University
Github Skills (6)
billing10
go10
iab10
google-iap10
api-design9
json8
Programming languages (11)
Github contributions (5)
awa/go-iap
Dec 2014 - Jul 2020
go-iap verifies the purchase receipt via AppStore, GooglePlayStore, AmazonAppStore and Huawei HMS.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 releases, 124 commits, 107 PRs in 5 years 8 months
Contributions summary:Yuta primarily focused on implementing and refining the `go-iap` project, designed to verify in-app purchase receipts across various platforms. Their work involved adding and modifying core functionalities, including handling errors, configuring client behavior, and validating receipts for AppStore. Further contributions included the addition of subscription-related features, such as password fields and support for auto-renewable subscriptions.
googleplaystoreappstorestorekitsubscriptionpurchase-receipt
jun06t/go-iap
Feb 2015 - Feb 2020
go-iap verifies the purchase receipt via AppStore or GooglePlayStore
Contributions:61 pushes, 77 branches in 5 years
golangverifiesgoogleplaystorepurchase-receiptappstore
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