Matthew Gray
Summary
Experienced with geospatial data analysis, application development, and spatial database management. Utilizes proficiency in Python and ArcGIS to create efficient and effective GIS solutions. Knowledge of integrating geospatial technologies into various applications, ensuring accurate and meaningful spatial data insights.
Overview
22
22
years of professional experience
1
1
Certification
Work History
GIS Developer/ Senior Advanced Analytics- Business Mid Markets
AT&T
09.2016 - Current
- Planned, developed and deployed internal Java-based GIS dashboards supporting Sales and Marketing analytics.
- Designed and maintained multi-million-point spatial datasets, updated monthly and integrated into internal business applications.
- Engineered data pipelines in Databricks to extract data from Snowflake, load into PostgreSQL, and spatially index using Python and GeoPandas.
- Led spatial data design initiatives using Alteryx and FME with RESTful ETL services to support custom internal analytics use cases.
- Created a Java Spring Boot–based Windows service for AT&T's Spectrum Enterprise Geocoder that processed CSV files and automatically returned geocoded outputs via email.
GIS Developer/ Programmer Analyst III
Texas Commission on Environmental Quality
04.2014 - 09.2016
- Created a statewide logistical map viewer based on a detailed specification document, delivering from design through final implementation.
- Engineered complex functionality and user interactions, featuring custom CSS layouts, tools, and behavior logic.
- Applied Agile development practices to iteratively refine and deploy functionality across multiple project phases.
- Researched, designed, documented, and modified software specifications throughout the full production lifecycle.
- Directed system changes to existing GIS infrastructure and managed dependencies between integrated systems.
- Edited and maintained GIS-related database structures to support evolving requirements of the map viewer.
- Conducted comprehensive feasibility studies and delivered recommendations that informed strategic development decisions.
- Built new RESTful services using ESRI ArcGIS Server and ArcGIS Online to support dynamic web-based mapping capabilities.
Web Developer II
Life Technologies
11.2013 - 04.2014
- Resolved outstanding help tickets by implementing enhancements and fixes in JavaScript and PHP codebases.
- Gained proficiency in PHP fundamentals and system architecture in preparation for new e-commerce feature rollouts.
- Created automated Selenium IDE test cases to support QA/QC workflows and validate upcoming e-commerce tools.
- Updated e-commerce tools by editing and documenting underlying database structures and metadata.
GIS Developer
Texas Historical Commission
06.2012 - 11.2013
- Designed and documented multiple front-end web mapping applications for the Archeological Atlas project.
- Built a dynamic spatial data repository using JavaScript, HTML5, CSS3, ArcGIS Server 10.2, Google Maps, and supporting API libraries.
- Developed a custom user interface and precision query tools to enhance data discoverability and usability.
- Demonstrated rapid skill acquisition and adaptability in a fast-changing weekly development schedule, solving complex technical challenges in real time.
Project Manager/ GIS Specialist
L3 Communications
05.2009 - 06.2012
- Managed a comprehensive fiber-optic network inventory and mapping project for Randolph Air Force Base.
- Collected technical field data and developed detailed schematics to map communication networks across large, complex regions.
- Supervised a team of professional cable technicians, ensuring alignment with project milestones and quality standards.
- Utilized and maintained fiber-optic cabling, network infrastructure components, and specialized system tools in a high-precision field environment.
GIS Analyst
Halff Associates
07.2005 - 05.2009
- Proven ability to construct and implement accurate engineering information and spatial data on various multi-faceted projects.
- Conducted an award-winning study of county-wide land use of Bexar County to estimate storm water runoff fees accurately.
GIS Technician
J.M. Waller and Associates
01.2004 - 07.2005
- Collected GPS field data and metadata information for Environmental assessment studies of federally owned property and bases.
- Created new digitized data from paper hardcopy maps, aerial photography, CADD files, and field studies based on federal guidelines.
Education
Bachelor of Science - Geographic Information Science, Business Administration
Texas State University
01.2005
Skills
- Spatial statistics
- Python programming
- JavaScript expertise
- SQL database management
- Java integration with PL and SQL
- SQL and databases
- Database programming and SQL
- Web application architecture
- Databases: oracle, SQL server, MongoDB
Certification
- GIS Certification Institute: Certified GIS Professional GISP
- AWS Fundamentals Certification
- Google Advanced Data Analytics Certification
- Introduction to Information Technology and AWS Cloud
Timeline
GIS Developer/ Senior Advanced Analytics- Business Mid Markets
AT&T
09.2016 - Current
GIS Developer/ Programmer Analyst III
Texas Commission on Environmental Quality
04.2014 - 09.2016
Web Developer II
Life Technologies
11.2013 - 04.2014
GIS Developer
Texas Historical Commission
06.2012 - 11.2013
Project Manager/ GIS Specialist
L3 Communications
05.2009 - 06.2012
GIS Analyst
Halff Associates
07.2005 - 05.2009
GIS Technician
J.M. Waller and Associates
01.2004 - 07.2005
Bachelor of Science - Geographic Information Science, Business Administration
Texas State University
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