I build maps and data platforms for land, forests & supply chains.

From farm polygons to traceability maps and management information systems — I turn spatial data and messy requirements into products people actually use.

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years in GIS & spatial analysis: 15+
years shipping web apps: 10+
first map application shipped: 2008

MapLibre
OpenLayers
Leaflet
Mapbox
Google Maps API
QGIS
ArcGIS
Google Earth Engine
JavaScript (ES6+)
React
Ext JS
jQuery
HTML5
CSS3
Node.js
Express
PHP
Laravel
Lumen
CodeIgniter
Python
PostgreSQL
MySQL
MongoDB
pandas
Jupyter

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0.60°N 101.45°E

WRI Indonesia · 2025 – Present

SmallholderHub MIS

A management information system for oil-palm smallholder programmes — farmers, farmer groups, land parcels, training and harvests in one place, with dashboards, maps and fire alerts.

Next.jsReactTypeScriptPostgreSQL

6.18°S 106.83°E

Koltiva · 2021 – 2025

Map of All Actors

An interactive map of every actor in a commodity supply chain, with layered analysis against land use, land cover, fire hotspots and distance-to-mill.

PHP (CodeIgniter)ExtJSGoogle Maps APIGeoServer

6.20°S 106.82°E

Sinarmas Forestry · 2017 – 2019