I will build custom arcgis web mapping applications

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matthewpowel963
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matthewpowel963
Matthew P

About this gig

From a simple internal data viewer to a full enterprise portal with custom widgets and offline field collection, I build web mapping applications that fit how your team actually works with spatial data. Interactive dashboards for infrastructure tracking, filtered map interfaces for asset management, mobile-responsive field apps that sync back to your geodatabase.

I build in ArcGIS Experience Builder, Web AppBuilder, and custom JavaScript/TypeScript depending on what the project needs. If your app requires functionality that doesn't exist out of the box, I develop custom widgets. If your data lives in PostGIS or SQL Server and needs to flow into ArcGIS Online, I build that connection.

Every app ships with admin documentation so your team can manage users, update layers, and adjust configurations without calling me back. Tested across browsers and devices before handoff. Send me your requirements and I'll scope it to see if I would be a good fit.

Get to know Matthew P

Matthew P

FullStack GIS Developer: Custom Web Apps and Spatial Databases

  • FromUnited States
  • Member sinceMar 2026
  • Languages

    English
GIS developer with ten years of experience building enterprise geospatial systems for mining, utility, energy, and environmental clients. I build custom web applications in ArcGIS Enterprise and Experience Builder, automate geoprocessing workflows with Python/ArcPy, and design spatial databases in PostGIS and SQL Server. Full-stack when the project calls for it, with TypeScript/React frontends and cloud infrastructure on AWS. I run my own consulting practice out of Houston while building a geospatial SaaS platform for site suitability analysis. Project code at github.com/matthew-lottly.

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