– It All Starts Here


William Gilrain

Savannah, GA, USA

GIS Analyst II
Spatial Engineering Inc - Rincon, GA
November 2015 to Present
Utility data extraction/georeferencing from as-built drawings
GPS collection/processing
Drone imagery collection/processing
Maintain several GIS websites for customers using Geocortex/ArcServer as well as Geoserver and Express Server
Maintain GIS databases (FGDB and Oracle SDE)
Most data maintained using SDSFIE
Application building using Geocortex
Site selection analysis/mapping
Creating official zoning maps, map books, and other local government mapping products
Assisting local governments with MS4 compliance
Quality checks and testing for data and applications
Interior space analysis
Streamlining processes through scripting (python/model builder)
Document preparation

GIS Field Technician
Aerotek - Chesapeake, VA
January 2015 to April 2015
Worked on a project for Clark Nexsen performing GPS field work for military housing across the United States
Used Trimble Geo 7X units to take GPS points of military housing and set up a base station for post processing of data
Measured and drew building footprints in AutoCAD.

GIS Specialist I
CACI Inc - Charlottesville, VA
September 2013 to September 2014
Worked with a team to complete an ArcGIS/AutoCAD project for military facilities that processed 56 million square feet of interior space.
Project was brought in ahead of time.
Included processing old CAD/GIS linework using topology rules, forming polygons, assigning attributes, checking georeferencing, as well as standardizing data so that it could be loaded into the data model
Updated, standardized, and georeferenced outdated AutoCAD data in ArcGIS, which ensured accurate scaling of CAD models
Made topology rules, created databases, revised existing/created new polylines and symbology based on formatting standards, formed polygons with added attributes, assigned attributes, checked/updated georeferencing, and used complex scaling methods
Made tools in ModelBuilder and Python which increased the speed of the project
Ensured precise georeferencing utilizing multiple sources: provided aerial imagery, Bing’s bird-eye imagery, and Google Maps, and analyzed changed over time though Google Earth’s historically relevant data
Worked with AutoCAD 2013: exploded linework, combined linework from other drawings to create one drawing, edited layers
Created advanced workflow tracking spreadsheets in Microsoft Excel and workflow outlines in Microsoft Word, made Microsoft PowerPoint presentations to answer data problems and queries to CACI managers and government personnel

GIS/CADD Technician
The Timmons Group - Richmond, VA
July 2012 to September 2013
Developed a method for GIS site search for stream and wetland mitigation using land use/land cover data, stream/wetland data, road network data, and LiDAR data
Created tools to speed up the workflow using Python and ModelBuilder
Created Conservation Easement Maps for stream and wetland restoration sites
Various GIS and AutoCAD mapping tasks
Various GIS technician work including data conflation, digitizing, QA/QC

Student Assistant GIS Coordinator
James Madison University - Harrisonburg, VA
February 2012 to May 2012
Assisted in the creation of a GIS of child care services in Virginia for the Virginia Department of Social Services

Teaching Assistant
James Madison University - Harrisonburg, VA
January 2010 to May 2012
Introduction to Geographic Information Systems (GEOG 366), Spatial Thinking and Problem Solving (GEOG 230), GIS Project Management (GEOG 467), Geography: Global Dimension (GGEOG 200)
Graded student assignments, taught lessons, created assignments and presentations, assisted in creating a new class, performed various GIS work

Albemarle County Office of Geographic Data Services - Albemarle County, VA
June 2010 to August 2010
Assisted with planimetric updates
Assisted with updating a GIS of demolished buildings around the county
Produced maps for various county agencies
Used Trimble GPS units to map out new building footprints


B.S. in Geography
James Madison University - Harrisonburg, VA
August 2008 to May 2012

William Gilrain

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Posted 2020-10-19 under Geospatial