Trent Casillas
@trentcasillas
I build efficient data workflows, GIS databases, and actionable dashboards.
United StatesWhat I'm looking for
I'm a data analyst who has streamlined GIS maintenance at NMG Geotechnical, cutting update processing time by 85% through SQL queries and relational databases.
Across freelance engagements, I've used Python scripts and advanced Excel models to extract, transform, and analyze complex datasets, improving operational efficiency by 20%. I've also maintained relational SQL environments at Passy Muir with 99.9% uptime.
I've built dashboards and quantitative models using Python, Excel, Tableau, and GIS tools, including an ESPN API-powered fantasy football dashboard. I also taught Python, SQL, and quantitative modeling to more than 100 students.
Experience
Work history, roles, and key accomplishments
Project Geotechnical Engineer
NMG Geotechnical
Jun 2021 - Present (5 years 4 months)
Managed geospatial data analysis workflows using SQL and relational databases, reducing update processing time by 85%. Partnered with project managers on milestones, budget adherence, and technical compliance reviews for portfolios up to $4B.
Freelance Data Contractor
Self Employed
Mar 2019 - Present (7 years 7 months)
Managed project management lifecycles and milestone tracking across 10+ engagements, converting business needs into actionable roadmaps. Applied Python scripts and advanced Excel models to analyze complex datasets, boosting operational efficiency by 20%.
IT Admin / Data Analyst
Passy Muir
Jul 2025 - Feb 2026 (7 months)
Maintained critical system integrity and relational SQL data environments, achieving 99.9% uptime over an 8-month period. Standardized system documentation and process mapping across Marketing, IT, and Operations.
Data Science Curriculum Developer / Instructor
Tried and True
Jun 2020 - Jun 2021 (1 year)
Taught quantitative and econometric modeling methods using open-source tools, Python, and SQL for 100+ students. Facilitated cross-functional process mapping and onboarding to standardize system documentation.
Education
Degrees, certifications, and relevant coursework
University of California, Los Angeles
Master of Science, Civil Engineering
Pursued a Master of Science in Civil Engineering with a focus on Geotechnical Engineering.
California Polytechnic State University, San Luis Obispo
Bachelor of Science, Civil Engineering
Earned a Bachelor of Science in Civil Engineering.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Portfolio
github.com/trent129/FantasyFootballSalary expectations
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