SQL

• Led the development, deployment, and support of over 30 GIS projects, demonstrating expertise in PostgreSQL, Bash, Python, JavaScript, GDAL, ArcGIS, PostGIS, and Mapbox technologies.
• Built the loyalty and reputation system — 67 functions over a 31‑table ledger, with leagues, badges and a redemption shop — taking a row lock on the balance to close the double‑spend window.

This work is part of what we offer as Backend & API Development, Data Pipeline Development (ETL/ELT), Database Design & Modeling, Full‑Stack Product Development, GIS & Geospatial Solutions, Product Strategy & Requirements and Technical Leadership & Consulting.

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