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Junjie Liu

PROFILE

Junjie Liu

During May 2025, this developer delivered a complete Articles Management System in the ucsb-cs156-s25/team02-s25-10 repository, implementing both the frontend UI and backend API to support full CRUD operations with role-based access control. The project was built using Java, JavaScript, and React, with Spring Boot powering the backend and React Bootstrap enhancing the user interface. Comprehensive unit and end-to-end tests were established using JUnit, Jest, and Playwright, ensuring robust coverage and reliability. The developer also created reusable fixtures and utilities, improved code formatting and consistency, and stabilized frontend-backend integration, resulting in a maintainable, production-ready system.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

17Total
Bugs
0
Commits
17
Features
1
Lines of code
2,843
Activity Months1

Work History

May 2025

17 Commits • 1 Features

May 1, 2025

May 2025 performance summary for ucsb-cs156-s25/team02-s25-10: Delivered a full Articles Management System with frontend UI, backend API, and comprehensive tests, enabling complete CRUD operations with role-based access control. Finalized end-to-end test coverage and established test fixtures/utilities to support reliable development and future iterations. Achieved stable frontend-backend integration and code quality improvements, culminating in a robust, maintainable delivery suitable for production handoff.

Activity

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Quality Metrics

Correctness92.4%
Maintainability93.6%
Architecture87.6%
Performance94.2%
AI Usage20.0%

Skills & Technologies

Programming Languages

CSSGroovyHTMLJavaJavaScriptSQL

Technical Skills

Backend DevelopmentCode FormattingDatabase ManagementEnd-to-End TestingFront End DevelopmentFrontend DevelopmentIntegration TestingJPAJUnitJavaScriptJestMSW (Mock Service Worker)MockitoPlaywrightREST APIs

Repositories Contributed To

1 repo

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

ucsb-cs156-s25/team02-s25-10

May 2025 May 2025
1 Month active

Languages Used

CSSGroovyHTMLJavaJavaScriptSQL

Technical Skills

Backend DevelopmentCode FormattingDatabase ManagementEnd-to-End TestingFront End DevelopmentFrontend Development