Joseph Miller is a Senior Lead Engineer based in Herndon, VA with two decades of GIS expertise and a strong twelve-plus year background in J2EE and modern web technologies. He designs and delivers scalable geospatial systems—spanning enterprise architecture, databases, remote sensing, STAC, and cartographic visualization—and has led projects from architecture through implementation and operations. A prolific open-source committer to GeoServer and GeoTools, he implemented OGC CQL-JSON filtering, GeoServer OGC API features, and the Vector Mosaic datastore, and recently built the first GeoServer LLM community extension that brings natural-language search to geospatial data. His work blends hands-on backend development (Spring, PostgreSQL/PostGIS, Kafka, AWS) with pragmatic productization—evident in production-ready tools like Pixia Catalog and a Spring/Hibernate STAC implementation. Colleagues rely on him for turning complex geospatial and sensor-data requirements into reliable, deployable services.
8 years of coding experience
21 years of employment as a software developer
Masters of Arts Geography, Masters of Arts Geography at University of Washington
High School, High School at CESJDS
BS Cartography Natural Resources Management, BS Cartography Natural Resources Management at University of Maryland
Contributions:230 reviews, 39 commits, 87 PRs in 2 years
Contributions summary:Joseph primarily contributed to the implementation of CQL-JSON filter encoding in OGC APIs, making filter conversion and cleanup. The user also focused on queryables for filtering, including adding configurable queryables, propertymapper, and associated test data. The user also worked on the support for POST queries with CQL for the OSEO project and refactoring.
Contributions:124 reviews, 43 commits, 43 PRs in 2 years 4 months
Contributions summary:Joseph primarily contributed to the GeoTools library, focusing on core back-end functionalities related to geospatial data processing and analysis. Their commits demonstrate the implementation of a spherical polyconic projection, along with other referencing code. They also worked on the conversion of CQL-JSON filtering, including building the necessary components for interpreting geo-spatial data and making the library compatible with GeoJson.
sqlserverpostgiswmsgeotoolsmongodb
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