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David Sheffield

PROFILE

David Sheffield

Worked on the DARPA-ASKEM/terarium repository, focusing on frontend enhancements and reliability improvements for scientific modeling workflows. Delivered features such as reactive time unit editing, LaTeX equation presets for epidemiological models, and default chart configurations to streamline model setup and visualization. Addressed UI reliability by fixing issues with save button state and checkbox persistence, and improved build health by refactoring Vue components to use type-only imports. Leveraged TypeScript, JavaScript, and Vue.js to strengthen state management, reduce user friction, and ensure data integrity, resulting in a more stable and user-friendly interface for complex data visualization and model configuration tasks.

Overall Statistics

Feature vs Bugs

43%Features

Repository Contributions

7Total
Bugs
4
Commits
7
Features
3
Lines of code
204
Activity Months2

Work History

April 2025

2 Commits

Apr 1, 2025

Concise monthly summary for 2025-04 focusing on UI reliability and code health in terarium. Delivered two targeted bug fixes that materially improve user experience and build health: 1) Checkbox Persistence and UI Reliability in the Workflow Component, 2) Resolve Build Warnings by Using Type Imports Across Vue Components. These changes reduce data loss risk, prevent UI state inconsistencies, and clean up dependencies, contributing to more stable workflows and a healthier CI/CD pipeline.

March 2025

5 Commits • 3 Features

Mar 1, 2025

March 2025 focused frontend improvements and reliability fixes for the DARPA-ASKEM/terarium project. Delivered UX enhancements for model configuration, epidemiological modeling support, and charting usability, along with stability fixes that reduce user friction and improve visualization clarity. These changes accelerate model iteration, improve accuracy of model representations, and strengthen the reliability of UI state during editing and visualization tasks.

Activity

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Quality Metrics

Correctness82.8%
Maintainability84.2%
Architecture71.4%
Performance68.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaScriptTypeScriptVue

Technical Skills

Chart ConfigurationComponent DevelopmentData VisualizationFront End DevelopmentFrontend DevelopmentJavaScriptState ManagementTypeScriptUI/UX DesignVue.js

Repositories Contributed To

1 repo

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

DARPA-ASKEM/terarium

Mar 2025 Apr 2025
2 Months active

Languages Used

JavaScriptTypeScriptVue

Technical Skills

Chart ConfigurationComponent DevelopmentData VisualizationFront End DevelopmentFrontend DevelopmentState Management