Moonchang Jang is a software engineer with 10 years of experience, currently building backend systems at NAVER Corp after earlier server and build-infrastructure work during compulsory service at Bagelcode. He focuses on systems-level engineering—microservice APIs, CI/CD (Jenkins), and in-app-purchase integrations across platforms (Facebook, Microsoft Store)—and has contributed meaningful fixes and tests to an open-source Node.js in-app-purchase module. A POSTECH-trained computer science engineer with hands-on interest in computer architecture, he’s pragmatic about modernizing legacy stacks, exploring TypeScript adoption and test automation to reduce bugs. Colleagues describe him as a careful, infrastructure-minded developer who blends engineering rigor with practical product delivery.
A Node.js module for in-App-Purchase for iOS, Android, Amazon and Windows.
Role in this project:
Back-end Developer
Contributions:10 commits, 1 PR, 3 comments in 1 month
Contributions summary:Moonchang focused on enhancing the in-app purchase module, specifically integrating and validating Facebook purchase receipts. Their contributions include implementing error handling, providing clear error messages for validation failures, and adding comprehensive testing for the Facebook module. They also refactored code for lower node versions and updated the Facebook API to version 3.3.
Contributions:1 push, 1 branch in 7 years 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.