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Sarah Yu

PROFILE

Sarah Yu

Sarah Yu developed two robust features for the ucsb-cs156/proj-frontiers repository, focusing on both backend and frontend improvements. She implemented a Course Staff Deletion flow that allows optional removal from a GitHub organization, integrating a UI confirmation modal and comprehensive end-to-end tests to ensure reliability. Additionally, she enhanced the Assignments API by introducing a PUT endpoint, aligning identifiers from courseId to assignmentId, and refining permission checks for improved data integrity. Working primarily with Java, React, and the Spring Framework, Sarah emphasized thorough unit testing with JUnit and Jacoco, demonstrating careful attention to correctness, maintainability, and business value.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

11Total
Bugs
0
Commits
11
Features
2
Lines of code
596
Activity Months1

Work History

November 2025

11 Commits • 2 Features

Nov 1, 2025

November 2025: Implemented two high-impact features in ucsb-cs156/proj-frontiers: a Course Staff Deletion flow with optional GitHub organization removal (UI confirmation, reliability improvements, and comprehensive tests), and an updated Assignments API (PUT endpoint, ID alignment from courseId to assignmentId, corrected permission checks, and updated tests). These changes reduce administrative overhead, prevent misconfigurations, and strengthen data access controls. Extensive test coverage and quality tooling (Jacoco, Stryker) demonstrate solid engineering discipline and business value.

Activity

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Quality Metrics

Correctness98.2%
Maintainability89.2%
Architecture89.2%
Performance89.2%
AI Usage20.0%

Skills & Technologies

Programming Languages

JUnitJavaJavaScript

Technical Skills

API developmentJavaREST APIReactSpringSpring Frameworkbackend developmentfront end developmenttestingunit testing

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

ucsb-cs156/proj-frontiers

Nov 2025 Nov 2025
1 Month active

Languages Used

JUnitJavaJavaScript

Technical Skills

API developmentJavaREST APIReactSpringSpring Framework