UNDP-Data/geohub
Nov 2024 – Aug 2025
9 Months active
Languages Used
CSSHTMLJSONJavaScriptMarkdownSCSSSQLSvelte
Technical Skills
API DevelopmentAPI IntegrationAuthenticationBackend DevelopmentChangelog ManagementCode Organization
Jin Igarashi
PROFILE
Jin Igarashi
Jin Igarashi developed and maintained core geospatial visualization and data management features for the UNDP-Data/geohub repository, focusing on robust map rendering, UI component reusability, and API reliability. Over nine months, Jin migrated major subsystems to Svelte 5, refactored map and dashboard components for maintainability, and implemented automated OpenAPI documentation to improve API discoverability. Using TypeScript, Svelte, and MapLibre GL JS, Jin addressed complex issues such as terrain visualization, style compatibility, and CI/CD automation. The work demonstrated depth in both frontend and backend engineering, resulting in a more stable, performant, and developer-friendly platform for geospatial data storytelling.
Overall Statistics
Feature vs Bugs
32%Features
Repository Contributions
183Total
Bugs
80
Commits
183
Features
38
Lines of code
129,789
Activity Months9
Your Network
3 peopleSame Organization
@undp.org1
Shared Repositories
2
Work History
August 2025
7 Commits • 3 Features
Aug 1, 2025In August 2025, delivered and refined core geospatial rendering and storytelling capabilities in UNDP-Data/geohub, focusing on stability, accuracy, and expanded 3D terrain support, while also improving CI/CD processes to accelerate reliable releases. The work reduced rendering regressions, improved UX in the style switcher, and extended terrain visualization across the Storymap Editor, enabling richer data storytelling and faster deployment cycles.
7 Commits • 3 Features
Aug 1, 2025In August 2025, delivered and refined core geospatial rendering and storytelling capabilities in UNDP-Data/geohub, focusing on stability, accuracy, and expanded 3D terrain support, while also improving CI/CD processes to accelerate reliable releases. The work reduced rendering regressions, improved UX in the style switcher, and extended terrain visualization across the Storymap Editor, enabling richer data storytelling and faster deployment cycles.
August 2025
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary for UNDP-Data/geohub: Implemented a critical compatibility fix to align map style URLs with the updated Titiler API. The TileMatrixSetId is now correctly parsed as a path parameter, preserving backward compatibility for older map styles while enabling migration to the new tile server. The change reduces rendering failures and supports the ongoing upgrade path for the map rendering stack. Technologies/skills demonstrated include REST API integration, URL/path parameter handling, Titiler tile server migration, Git versioning, and backward compatibility testing.
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary for UNDP-Data/geohub: Implemented a critical compatibility fix to align map style URLs with the updated Titiler API. The TileMatrixSetId is now correctly parsed as a path parameter, preserving backward compatibility for older map styles while enabling migration to the new tile server. The change reduces rendering failures and supports the ongoing upgrade path for the map rendering stack. Technologies/skills demonstrated include REST API integration, URL/path parameter handling, Titiler tile server migration, Git versioning, and backward compatibility testing.
May 2025
4 Commits • 1 Features
May 1, 2025May 2025 monthly summary for UNDP-Data/geohub: Delivered resilience for the landing page under Titiler outages, strengthened overall stability with Svelte 5 compatibility and Storybook updates, and extended map visualization capabilities with fill-extrusion layer support. These efforts improve uptime, developer experience, and feature richness, delivering concrete business value for reliable geospatial visualization and faster iteration.
4 Commits • 1 Features
May 1, 2025May 2025 monthly summary for UNDP-Data/geohub: Delivered resilience for the landing page under Titiler outages, strengthened overall stability with Svelte 5 compatibility and Storybook updates, and extended map visualization capabilities with fill-extrusion layer support. These efforts improve uptime, developer experience, and feature richness, delivering concrete business value for reliable geospatial visualization and faster iteration.
May 2025
April 2025
13 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for UNDP-Data/geohub: Focused on delivering advanced GeoHub visualization features, stabilizing UI interactions, and modernizing the build process. Key features were delivered for GeoHub Map Enhancements and Visualization UX, with targeted UI fixes and dependency updates that improve both user experience and development velocity. The combined work enhanced spatial data analysis capabilities, reduced UI friction, and accelerated secure, stable releases.
April 2025
13 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary for UNDP-Data/geohub: Focused on delivering advanced GeoHub visualization features, stabilizing UI interactions, and modernizing the build process. Key features were delivered for GeoHub Map Enhancements and Visualization UX, with targeted UI fixes and dependency updates that improve both user experience and development velocity. The combined work enhanced spatial data analysis capabilities, reduced UI friction, and accelerated secure, stable releases.
March 2025
4 Commits • 2 Features
Mar 1, 2025Month: 2025-03 — The UNDP-Data/geohub repository delivered notable stability, reactivity, and component reusability improvements, with targeted fixes and incremental feature delivery that enhance data workflows and user experience. The work emphasizes business value by reducing runtime issues in interactive maps, enabling real-time content updates, and consolidating UI components for faster future development across teams.
4 Commits • 2 Features
Mar 1, 2025Month: 2025-03 — The UNDP-Data/geohub repository delivered notable stability, reactivity, and component reusability improvements, with targeted fixes and incremental feature delivery that enhance data workflows and user experience. The work emphasizes business value by reducing runtime issues in interactive maps, enabling real-time content updates, and consolidating UI components for faster future development across teams.
March 2025
February 2025
25 Commits • 5 Features
Feb 1, 2025February 2025 (UNDP-Data/geohub) — Delivered stability, API visibility, and structural improvements that increase reliability and time-to-value for developers and business users. Key work included a major codebase refactor, automated OpenAPI documentation for static API and Geohub endpoints, enhanced mapping capabilities with MosaicJSON TileJSON support, and the addition of terrain/operation algorithms to the Algo Explorer. CI/CD hygiene and dependency maintenance were improved to reduce production risk and accelerate future releases. Overall, these efforts improved API discoverability, performance, and maintainability while accelerating feature delivery for geospatial users.
February 2025
25 Commits • 5 Features
Feb 1, 2025February 2025 (UNDP-Data/geohub) — Delivered stability, API visibility, and structural improvements that increase reliability and time-to-value for developers and business users. Key work included a major codebase refactor, automated OpenAPI documentation for static API and Geohub endpoints, enhanced mapping capabilities with MosaicJSON TileJSON support, and the addition of terrain/operation algorithms to the Algo Explorer. CI/CD hygiene and dependency maintenance were improved to reduce production risk and accelerate future releases. Overall, these efforts improved API discoverability, performance, and maintainability while accelerating feature delivery for geospatial users.
January 2025
35 Commits • 5 Features
Jan 1, 2025January 2025: Major Svelte 5 migration across UNDP-Data/geohub, static API modernization, and CI/build reliability improvements. Delivered modernized UI and map editor components, migrated multiple subsystems to Svelte 5 (including STAC, StoryMap, MapLibre, and svelte-undp-design), and updated core dependencies in the monorepo. Fixed critical map editor bugs (layer deletion) and data visualization issues (stars count), resolved StoryMap pagination and protocol integration, and improved deployment workflow by switching to Azure CLI for blob storage uploads and aligning CI with Azure actions. Also cleaned up Renovate/lockfile configurations and related CI tweaks. Result: reduced technical debt, faster feature delivery, more stable builds, and improved business value through reliable geospatial visualization and data access.
35 Commits • 5 Features
Jan 1, 2025January 2025: Major Svelte 5 migration across UNDP-Data/geohub, static API modernization, and CI/build reliability improvements. Delivered modernized UI and map editor components, migrated multiple subsystems to Svelte 5 (including STAC, StoryMap, MapLibre, and svelte-undp-design), and updated core dependencies in the monorepo. Fixed critical map editor bugs (layer deletion) and data visualization issues (stars count), resolved StoryMap pagination and protocol integration, and improved deployment workflow by switching to Azure CLI for blob storage uploads and aligning CI with Azure actions. Also cleaned up Renovate/lockfile configurations and related CI tweaks. Result: reduced technical debt, faster feature delivery, more stable builds, and improved business value through reliable geospatial visualization and data access.
January 2025
December 2024
29 Commits • 7 Features
Dec 1, 2024December 2024 highlights focused modernization, refactoring, and user-focused UX improvements in UNDP-Data/geohub. The team delivered a design system CSS upgrade, advanced frontend refactors toward Svelte 5, and several UX enhancements for landing pages and storymaps, boosting usability and developer velocity. A broad set of bug fixes improved reliability, rendering accuracy, and navigation, contributing to a more stable and accessible product for users and unsigned visitors alike.
December 2024
29 Commits • 7 Features
Dec 1, 2024December 2024 highlights focused modernization, refactoring, and user-focused UX improvements in UNDP-Data/geohub. The team delivered a design system CSS upgrade, advanced frontend refactors toward Svelte 5, and several UX enhancements for landing pages and storymaps, boosting usability and developer velocity. A broad set of bug fixes improved reliability, rendering accuracy, and navigation, contributing to a more stable and accessible product for users and unsigned visitors alike.
November 2024
65 Commits • 14 Features
Nov 1, 2024November 2024: Delivered stability fixes, performance improvements, and a major UI/component consolidation for UNDP-Data/geohub. Business value was realized through corrected data classification flow, improved UX for data loading, and a reusable UI component library that accelerates future work. Key outcomes include bug fixes for Jenks classification and dynamic data loading, a substantial refactor migrating Maplibre and related components to a centralized svelte-undp-components library, Storybook-driven UI enhancements, and Zanzibar dashboard improvements with an export capability.
65 Commits • 14 Features
Nov 1, 2024November 2024: Delivered stability fixes, performance improvements, and a major UI/component consolidation for UNDP-Data/geohub. Business value was realized through corrected data classification flow, improved UX for data loading, and a reusable UI component library that accelerates future work. Key outcomes include bug fixes for Jenks classification and dynamic data loading, a substantial refactor migrating Maplibre and related components to a centralized svelte-undp-components library, Storybook-driven UI enhancements, and Zanzibar dashboard improvements with an export capability.
November 2024
Activity
Loading activity data...
Quality Metrics
Correctness87.2%
Maintainability85.6%
Architecture81.4%
Performance79.4%
AI Usage20.2%
Skills & Technologies
Programming Languages
CSSDockerfileHTMLJSONJavaScriptMakefileMarkdownSCSSSQLShell
Technical Skills
API DevelopmentAPI IntegrationAPI MaintenanceAccessibilityAuthenticationAzureAzure Blob StorageAzure CLIBackend DevelopmentBug FixBug FixingBuild AutomationBuild ToolsCI/CDCI/CD Configuration
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline