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# Senior GIS / Web-3D Developer

- **Company:** Arc Full-time
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), 3D Rendering, Application Programming Interfaces (APIs), Amazon Web Services, ArcGIS (Software), Microsoft Azure, Spreadsheets, GeoServer, PostGIS, Quantum GIS (QGIS), Spatial Data Infrastructures, Systems Integration, TypeScript, Web Content Accessibility Guidelines, WebGL, Three.js, Digital Twin, Data Ingestion, Geospatial Data Abstraction Library (GDAL), 3d Mapping, Service Stack
- **Published:** September 27, 2026
- **Apply:** https://arc.dev/signup?userType=developer&publicRandomKey=pmydlacrep&to=https%3A%2F%2Farc.dev%2Fdashboard%2Fd%2Fverified-jobs%2Fpmydlacrep%2Fapplication

## About the Role

* 5+ years of GIS, geospatial software, web mapping, or related experience.
 * Strong production web GIS experience.
 * Experience with ArcGIS/ArcGIS Online, CesiumJS, Mapbox, Three.js, WebGL, or comparable technologies.
 * Strong JavaScript and/or TypeScript.
 * Spatial data integration and geospatial workflows.
 * Experience integrating 3D assets into browser-based applications.
 * Experience optimizing large maps, 3D scenes, and spatial datasets.
 * Ability to recommend architecture, hosting, and scalability approaches.
 * Ability to provide examples of comparable completed work.

Strongly Preferred

 * Municipal/public-sector GIS or government technology experience.
 * Smart-city, urban planning, development, infrastructure, or real-estate visualization.
 * Cesium 3D Tiles, digital twins, photogrammetry, or large-scale 3D environments.
 * PostGIS, GDAL, GeoServer, QGIS, AWS, Azure, or similar.
 * WCAG/accessibility, security, backup/recovery, or incident-management experience.
 * Experience presenting technical solutions to government or enterprise clients.

## Description

* Help define the GIS/Web-3D architecture, technology stack, and implementation approach.
 * Build or support a responsive browser-based 2D/3D mapping experience.
 * Integrate City-provided spreadsheets, spatial files, and API/third-party data where needed.
 * Support 35-50 development projects with varying 3D detail, from simple massing to more detailed models.
 * Integrate and optimize 3D building assets for web delivery.
 * Support different geographic scales and levels of detail.
 * Implement transit, transportation, infrastructure, amenity, and accessibility overlays.
 * Support distance/proximity analysis.
 * Design for future projects, growth areas, datasets, and map overlays.
 * Optimize page load, map interaction, and 3D rendering performance.
 * Support analytics/reporting for public engagement, platform usage, and operational health.
 * Provide input on hosting, monitoring, backups, recovery, privacy, security, and incident response.
 * Support data ingestion, validation, update workflows, documentation, UAT, and final handover.
 * Support WCAG 2.0 accessibility at minimum.
 * Participate in a City interview/demo if shortlisted.
 * Support the required one-year maintenance/support period where applicable.


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