I work with maps.

Reading space

My foundation comes from geomatics and surveying and mapping at Universitas Gadjah Mada. Terrestrial surveying, photogrammetry, datums, and projections shaped how I understand the production of spatial data. That attention to accuracy carries into the data and applications I work on.

Working at infrastructure scale

Infrastructure work took that rigor to corridor scale. On the Trans Sumatra Toll Road, I turned survey data and GIS into WebGIS and dashboards for understanding the corridor and managing its assets.

1,134 km

of toll road in Sumatra already mapped in OpenStreetMap (Sep 2026)

±4,521 km

of intercity toll road planned for Sumatra, 2020–2040 (PUPR Decree 367/2023)

• Trans Sumatra toll sections

Toll lines from OpenStreetMap (ODbL), simplified for display.

International mobility and routing

My career then moved to international scale at SWAT Mobility in Singapore. I lead the GIS and routing function, optimizing road graphs and calibrating OSRM vehicle profiles across Thailand, Japan, and Singapore for both people transport and logistics.

• Singapore, home base
• Routing operating countries

Turning spatial rules into systems

Rules on the ground have to become logic a system can run. In TRAYEK, my personal project, rules like Jakarta odd-even plates become constraints the Valhalla routing engine solves. The map shows the idea: one van, four stops, two routes.

5.4 km

of the fastest route runs on odd-even roads

+1.9 km

to avoid them, about 10 minutes longer

• Fastest route
• Odd-even aware route
• Odd-even roads

Illustration: public landmarks, Valhalla routes on OpenStreetMap data.

Sharing the method

I share the method too. I assisted lab classes at UGM in 2021. In 2026 I was the trainer for three Aksara Lab programmes (WebGIS with QGIS2Web, GeoAI for oil palm, and automated tree counting), then worked with Arkabumi as assistant trainer on two batches of a four-day WebGIS training for BIG and taught its Google Cloud deployment day.

• Where I taught and trained

• Workshop May 2026

  Open Source WebGIS with QGIS2Web

  Trainer · Aksara Lab Indonesia

  View certificate ↗

• Corporate training Jul 2026

  GeoAI for Oil Palm: Image Enhancement and Health Classification with Python

  Trainer · Aksara Lab Indonesia

  View certificate ↗

• Online bootcamp Aug 2026

  Oil Palm Tree Counting Automation

  Trainer · Aksara Lab Indonesia

  View certificate ↗

• Workshop September 2026

  Basic to Advanced WebGIS Training for BIG

  Assistant Trainer and Deployment Trainer · Arkabumi