Liel Mendoza
Katy,Texas
Summary
Dynamic GIS Technician with proven expertise at Energy Transfer, specializing in creating and maintaining GIS maps and applications. Proficient in ArcGIS Pro and SQL, I excel in data analysis and risk assessment, ensuring data integrity and enhancing pipeline monitoring. Strong collaborator with a keen eye for detail, driving project success through effective communication.
Overview
4
4
years of professional experience
Work History
GIS Technician (Contractor)
Energy Transfer
Houston, Texas
06.2025 - Current
- Create and maintain GIS maps for pipelines, wells, facilities, leases, and other oil and gas infrastructure.
- Manage attribute data and ensure consistency between spatial and tabular records in GIS UPDM databases.
- Maintain datasets and maps for pipeline integrity, inspection logs, and environmental permits.
- Support development and maintenance of web-based GIS applications and dashboards for real-time pipeline monitoring.
- Identify and assess potential risks, encroachments, or conflicts using geospatial processes for creation of As-Built pipeline drawings.
- Assist in pipeline route selection and environmental constraint mapping using ArcGIS Pro and satellite imagery.
GIS Analyst/Quality Assurance Tester (Remote)
Pacific Gas & Electric
Houston, Texas
03.2022 - 06.2025
- Analyzed detailed maps and databases of pipeline infrastructure, including locations, dimensions, features, related facilities, and asset information.
- Created test plans that outline testing scope, objectives, resources, and schedule.
- Created 'shapefiles' to merge topographical data with external data by layering external data over a topographical map.
- Utilized data analysis methods with Postman and Postgres applications to analyze survey results.
- Collaborated with developers to verify fixes and perform re-tests.
- Documented test results and share testing status with stakeholders.
Education
Bachelor of Science - Geographic Information Science & Technology
Texas A&M University
College Station12.2021
Skills
- Microsoft Office
- Microsoft Excel
- Microsoft Powerpoint
- ArcMap
- ArcGIS Pro
- ArcGIS Online
- ArcCatalog
- Postman
- Postgres SQL
- JIRA
- Python
- Google Earth Pro
- MATLAB
- R
- Envi
- ArcPy
- SQL
- Microsoft Visual Studio Code
- Github
Timeline
GIS Technician (Contractor)
Energy Transfer
06.2025 - Current
GIS Analyst/Quality Assurance Tester (Remote)
Pacific Gas & Electric
03.2022 - 06.2025
Bachelor of Science - Geographic Information Science & Technology
Texas A&M University