Freelance GIS & Geospatial Programmer: PostGIS, GeoDjango & Interactive Google Maps Apps

Location-aware SaaS platforms—such as on-demand delivery logistics, retail store locators, transit routing (MRT/LRT), and regional server selection—require true spatial indexing (R-Tree over GiST in PostGIS) rather than slow Haversine trigonometric scans across millions of latitude/longitude rows.

As a Senior Freelance GIS & Geospatial Programmer, I build high-speed spatial APIs with PostgreSQL + PostGIS, GeoDjango, and interactive React / Google Maps / Mapbox frontends. Hire Aldian Fazrihady on Upwork (aldianf).

Geospatial Engineering Case Studies

About the Author — Hire Freelance Programmer Aldian Fazrihady

Aldian Fazrihady is a Top-Rated Senior Freelance Programmer, Freelance Full Stack Developer, and AI Application Engineer with 15+ years of production software engineering experience and Google Cloud Professional Cloud Architect & Data Engineer certifications. He specializes in building custom LLM & autonomous AI agents, RAG pipelines, Next.js/React PWAs, Python (Django/FastAPI), Go microservices, and serverless cloud infrastructure on Google Cloud Run and AWS.

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