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Charles Joseph Ballesteros

PROFILE

Charles Joseph Ballesteros

Over four months, CJ Ballesteros developed and integrated core backend and frontend features across the AbdulAlharbi/Group-2 and UNLV-CS472-672/2025-S-GROUP2-LessonConnect repositories. He built booking and availability systems, implemented review workflows, and delivered data mining and analytics tools, focusing on robust API development and test-driven reliability. Using Python, Django REST Framework, and React, CJ designed scalable models, ensured data integrity with comprehensive testing, and improved user workflows through input validation and refactoring. His work addressed scheduling accuracy, feedback collection, and repository hygiene, demonstrating depth in database modeling, RESTful API design, and collaborative codebase management without introducing major bugs.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

24Total
Bugs
0
Commits
24
Features
12
Lines of code
6,692
Activity Months4

Work History

April 2025

6 Commits • 2 Features

Apr 1, 2025

April 2025 performance summary: Delivered a robust Tutor Availability and Booking flow by implementing an Availability model and integrating it with Booking, including new API endpoints and updates to the booking flow to reflect availability slots. Strengthened Booking reliability with comprehensive tests for the Booking model and API endpoints, refactored save/cancel logic to correctly manage availability, and timezone-aware availability filtering for robust scheduling across zones. Restored previously commented debugging code to ensure parity during rollout. Impact includes improved scheduling accuracy, reduced booking conflicts, expanded test coverage, and a scalable foundation for capacity planning. Technologies demonstrated include REST API design, ORM/model migrations, timezone handling, test-driven development, and code refactoring.

March 2025

4 Commits • 2 Features

Mar 1, 2025

March 2025 performance summary for UNLV-CS472-672/2025-S-GROUP2-LessonConnect. Delivered a scalable core for the Booking system with a lifecycle, including renaming from scheduling to bookings and integrating booking-related operations into project settings and URLs. Implemented and tested booking expiry logic to improve availability and data hygiene. Rolled out Reviews and Feedback enhancements with a new Review model, admin updates, and API endpoints to retrieve and submit reviews. This work improves user workflow, reduces friction in bookings, and strengthens feedback collection for product decisions. Collaboration with team members (per feedback) supported consistent naming and model design across features.

February 2025

10 Commits • 6 Features

Feb 1, 2025

February 2025 monthly summary for Team Group-2 and LessonConnect initiative. Deliveries across two repositories focused on business value, reliability, and scalable frontend scaffolding. Highlights include robust API and application logic, enhanced UI setup for faster delivery, and improved repository hygiene to reduce on-boarding friction.

January 2025

4 Commits • 2 Features

Jan 1, 2025

January 2025 performance summary for AbdulAlharbi/Group-2. Delivered two features focused on governance and analytics: Contributor Registry Maintenance and GitHub Repository Data Mining Toolkit. No major bugs fixed this month. Overall impact includes improved attribution accuracy, enhanced visibility into author activity, and a scalable analytics workflow for future dashboards. Demonstrated proficiency in Python scripting, data cleaning, and version-control hygiene.

Activity

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Quality Metrics

Correctness90.8%
Maintainability86.2%
Architecture83.4%
Performance84.2%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++CSSDRFDjangoHTMLHTTPJavaScriptPythonREST FrameworkREST framework

Technical Skills

API DevelopmentAPI IntegrationAPI TestingAlgorithmBackend DevelopmentC++CeleryData MiningData StructuresData VisualizationDatabase DesignDatabase ManagementDatabase ModelingDjangoDjango ORM

Repositories Contributed To

2 repos

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

UNLV-CS472-672/2025-S-GROUP2-LessonConnect

Feb 2025 Apr 2025
3 Months active

Languages Used

CSSHTMLJavaScriptXMLDRFDjangoPythonSQL

Technical Skills

Frontend DevelopmentReactTailwind CSSViteAPI DevelopmentBackend Development

AbdulAlharbi/Group-2

Jan 2025 Feb 2025
2 Months active

Languages Used

PythonShellC++HTTP

Technical Skills

API IntegrationData MiningData VisualizationScriptingAPI DevelopmentAlgorithm

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