Terry Yiu
Staff Software Engineer - L7 (Cash App) at Block
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolTerry Yiu is a Staff Software Engineer with 16+ years building scalable product and infrastructure systems, currently shaping experimentation, feature-flagging, and localization tooling at Cash App. He blends backend systems work (DynamoDB integrations and microservice frameworks) with mobile and UI sensibilities, having contributed UI and localization fixes to the popular Damus iOS Nostr client. At Block he has led cross-team API and authorization refactors, built client-sync product servers, and stood up the company’s first localization platform from scratch. A seasoned interviewer and hiring committee member, Terry has evaluated hundreds of candidates and created internal automation to streamline recruiting. He pairs deep technical breadth—from C++ and Java to iOS and cloud services—with a pragmatic focus on maintainability and developer experience.
16 years of coding experience
12 years of employment as a software developer
Stanford Continuing StudiesBachelor of Computer Science Software Engineering Option - Co-operative Program, Bachelor of Computer Science Software Engineering Option - Co-operative Program at University of Waterloo
English, Chinese, Russian
Stackoverflow
1reputation
0reached
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Github Skills (16)
amazon-dynamodb10
testing10
javas10
swift10
localization10
ios10
dynamodb10
java10
aws-sdk10
kotlin9
unit-testing9
microservices8
microservices-application8
bitcoins7
nostr7
Programming languages (13)
Github contributions (5)
damus-io/damus
Dec 2022 - Jan 2023
iOS nostr client
Role in this project:
iOS Mobile Developer
iOS Mobile DeveloperContributions:109 reviews, 36 commits, 170 PRs in 1 month
Contributions summary:Terry primarily contributes to the Damus iOS client by implementing UI improvements and fixing localization issues. They focused on adhering to Apple's Human Interface Guidelines, as seen by reordering alert buttons and internationalizing user-facing strings. Furthermore, they addressed code deprecation by replacing deprecated calls and fixing a test, indicating a focus on maintaining the application's quality and compatibility.
nostrswiftiosbitcoinlightning-network
cashapp/misk
Feb 2021 - Nov 2022
Microservice Kontainer
Role in this project:Back-end Developer
Back-end DeveloperContributions:15 reviews, 10 commits, 13 PRs in 1 year 9 months
Contributions summary:Terry's contributions primarily involve adding support for AWS SDK 2.0 for DynamoDB within the `misk` framework, specifically focusing on testing infrastructure. They have implemented and tested DynamoDB integration, including the use of enhanced client, table schema, and data querying. The user's work also encompasses the creation and truncation of DynamoDB tables.
dockermicroservicemicroservices
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