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Derek Kirschbaum

PROFILE

Derek Kirschbaum

Daniel Kirschbaum developed robust backend and frontend features across the ucsb-cs156-s25/team02-s25-16 and ucsb-cs156/proj-frontiers repositories, focusing on scalable API-driven workflows for menu management and automated GitHub team provisioning. He implemented RESTful endpoints and background jobs using Java, Spring Boot, and React, enabling dynamic CRUD operations, role-based access control, and seamless integration with the GitHub API. Daniel’s work included comprehensive test coverage with JUnit and React Testing Library, database migrations, and UI enhancements, resulting in improved data integrity, reduced manual processes, and reliable team management. His contributions demonstrated depth in backend architecture, integration testing, and code quality practices.

Overall Statistics

Feature vs Bugs

60%Features

Repository Contributions

102Total
Bugs
17
Commits
102
Features
25
Lines of code
168,396
Activity Months5

Work History

March 2026

17 Commits • 1 Features

Mar 1, 2026

March 2026 monthly summary for ucsb-cs156/proj-frontiers: Delivered a comprehensive GitHub Team Integration and Management feature that pulls course teams, syncs members and maintainers, handles team slugs with pagination and robust error propagation, and exposes a UI trigger to initiate pulls with full test coverage. Performed formatting cleanup in EnrollmentTabComponent. Hardened team-related jobs and added a DB migration to support team slugs, improving data integrity and reliability. Result: more accurate cross-system team data, reduced manual effort, and stronger collaboration workflows across courses. Technologies demonstrated: GitHub API integration, service layer refactors, slug handling, DB migrations, test coverage, and UI integration.

February 2026

23 Commits • 9 Features

Feb 1, 2026

February 2026 performance summary for ucsb-cs156/proj-frontiers. Focused on delivering automated GitHub team member management, strengthening reliability, and expanding test coverage. Key features include a GitHub team member deletion job and an initial add-member job, with frontend triggering two API calls during deletion and a Swagger endpoint to manually test the workflow. Major bugs fixed include incorrect team ID selection and incorrect GitHub endpoint usage, plus improved error handling for not-found members. Added test coverage for the delete workflow and UI/UX improvements for team management (CSV upload UI and info/tooltips). This work reduced manual operational effort, improved safety of team modifications, and accelerated iteration. Technologies used include GitHub API integration, Swagger/OpenAPI testing, frontend-backend coordination, linting/formatting, and mutation testing practices. Overall impact: higher reliability, better developer velocity, and clearer observability across team-management workflows.

January 2026

6 Commits • 1 Features

Jan 1, 2026

January 2026 monthly summary focusing on key accomplishments and business value for the ucsb-cs156/proj-frontiers project. The team delivered automated course-team repository provisioning, improved API visibility, and strengthened testing and code quality to support scalable, reliable provisioning workflows for course-based GitHub repos.

May 2025

55 Commits • 13 Features

May 1, 2025

May 2025 performance summary: Delivered a comprehensive Menu Items feature suite and Pending Requests enhancements across two repos, stabilized UI and test harness, and strengthened code quality and QA readiness for production.

April 2025

1 Commits • 1 Features

Apr 1, 2025

April 2025 monthly summary for developer work in repository ucsb-cs156-s25/team02-s25-16. Key feature delivered: - Dining Commons Menu Items Management: Implemented backend support for managing dining commons menu items, including a new MenuItem entity, repository, and a REST controller to support CRUD operations. The work introduces role-based access control to govern which actions can be performed by different roles, establishing RBAC groundwork for secure item management and future feature expansion. Major bugs fixed: - No major bugs recorded for this scope in April 2025. Focus was on feature delivery and solidifying backend foundations. Overall impact and accomplishments: - Delivered a scalable backend module that enables dynamic, auditable menu item management, reducing manual processes and enabling product teammates to update dining options through a structured API. - Created a solid foundation for future enhancements (e.g., advanced RBAC rules, item versioning, and auditing) that support business needs and regulatory compliance. - The work aligns with product goals for modular backend services and improves data integrity across the dining menu domain. Technologies/skills demonstrated: - Backend development: entity modeling, repository pattern, and REST controller implementation. - Access control design: groundwork for role-based access control in data-modifying endpoints. - Versioned commits and repository hygiene: clear commit message and alignment with repository structure (commit 04a7dad0532606f28868613a987e6dc009f3b11a: "dk - added backend for menu items").

Activity

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Quality Metrics

Correctness92.0%
Maintainability89.2%
Architecture87.2%
Performance88.2%
AI Usage21.2%

Skills & Technologies

Programming Languages

CSSHTMLJSONJSXJUnitJavaJavaScriptYAML

Technical Skills

API DevelopmentAPI IntegrationAPI MockingAPI developmentAPI integrationAxiosBackend DevelopmentBackend IntegrationBug FixingCI/CDCSSCode FormattingEnd-to-End TestingFixture ManagementForm Handling

Repositories Contributed To

3 repos

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

ucsb-cs156/proj-frontiers

Jan 2026 Mar 2026
3 Months active

Languages Used

JUnitJavaHTMLJSXJavaScriptCSSJSON

Technical Skills

API integrationGitHub APIJUnitJavaMockitoREST API

ucsb-cs156-s25/team02-s25-16

Apr 2025 May 2025
2 Months active

Languages Used

JavaHTMLJavaScriptYAML

Technical Skills

Backend DevelopmentJPAJUnitREST APISpring BootAPI Mocking

ucsb-cs156-s25/proj-rec-s25-16

May 2025 May 2025
1 Month active

Languages Used

HTMLJUnitJavaJavaScript

Technical Skills

API DevelopmentAPI IntegrationBackend DevelopmentBug FixingCSSCode Formatting