Dhany Yudi Prasetyo
Geospatial & GIS Engineer
Jakarta, Indonesia
Profile
Geospatial and GIS engineer with over 3 years of experience in spatial data management, spatial analysis, and routing system development for mobility technology companies and national strategic infrastructure projects. Certified by BNSP as a GIS Manager/Specialist, with a background in geodetic survey and UAV LiDAR.
Career timeline
Experience
2024–2026
Remote (Singapore)
Associate Cartography Engineer
SWAT Mobility
Managed map operations end-to-end, from requirement analysis through transit-stop verification, geofences, routing profiles and PBF pipelines to production monitoring, with consistent SLA delivery across 3 countries.
- Developed and calibrated OSRM Lua profiles for 14 vehicle classes across 5 Asian markets, customising maps to each country's transport regulations: truck-ban zones in Bangkok, the Number Coding scheme in Metro Manila, urban delivery restrictions in Indonesia, and a van profile rebased on Japanese legal speed limits against a benchmark.
- Diagnosed production routing failures to root cause, resolving a memory bottleneck in the speed-update step and eliminating pipeline latency caused by a stalled HTTP request.
- Maintained the OpenStreetMap layer underneath: periodic PBF refreshes per region with custom edits and client restrictions reapplied on top, OSRM engine and container upgrades revalidated after each release, and full graph rebuilds (extract, partition, customize) across the deployed estate.
- Designed and maintained 5 internal platforms, including a self-service GIS operations application with SSO, a routing-backend inventory dashboard with dangling-backend detection, and a local replica of the production environment via Podman.
- Automated 6 workflows: manual QA moved to automated validation integrated with Jira, daily route reachability alerts, infrastructure migrations validated via Jenkins traffic replay, and 27 monitoring queries refactored to catch performance degradation early.
2026
Indonesia (online and onsite)
GIS & Remote Sensing Trainer
Aksara Lab and corporate clients
Delivered GIS, remote sensing, and computer-vision training in 2026 alongside full-time engineering work, building every course from implementations already running in production rather than from generic tutorials.
- Automated oil-palm tree counting with YOLO and Python for Aksara Lab, delivered as an online bootcamp in August 2026.
- Open-source WebGIS with QGIS2Web for Aksara Lab, a two-day bootcamp in May 2026, supported by example projects and styling tools built specifically for the course.
- Computer vision for plantation inventory, delivered onsite to a large agribusiness group in July 2026: OpenCV image enhancement, tree counting, and oil-palm health classification, taught so the client's own team could run the workflow afterwards.
2023–2024
East Jakarta, Indonesia
Geodetic Officer, Toll Road Planning Division
PT Hutama Karya (Persero)
Led UAV LiDAR acquisition (VTOL and multi-rotor platforms) along Trans-Sumatra Toll Road corridors to build the elevation model that accelerated route feasibility studies for a National Strategic Project.
- Led UAV LiDAR acquisition (VTOL and multi-rotor platforms) along Trans-Sumatra Toll Road corridors to build elevation models accelerating route feasibility studies for a National Strategic Project.
- Processed LiDAR point cloud classification (ground and non-ground) to produce high-precision DTM models for alignment geometry planning and cut and fill optimisation.
- Designed GPS control networks and traverse polygons to improve spatial accuracy and reduce repeat measurement.
- Architected an ArcGIS Enterprise asset management dashboard that turned the toll road's maintenance lifecycle into a digital twin, integrating LiDAR and UAV survey data to monitor a 131.69 km segment and pinpoint 58 segments needing immediate repair out of nearly 50,000.
- Built Power BI analytics over 9,800 geotechnical borehole points and BIM implementation KPIs, giving project managers month-to-month visibility into design-phase bottlenecks.
2023
Sleman, Yogyakarta, Indonesia
GIS Programmer
PT Gerbang Innovasi Geospasial
Developed client WebGIS systems and centralized spatial data governance modules for regional government clients using QGIS, PHP, and PostgreSQL/PostGIS.
- Developed client WebGIS platforms in PHP and PostgreSQL/PostGIS, implementing the 'One-Village-One-Data' (SAKATA) integration module for regional-government spatial data governance.
- Built automated spatial validation pipelines that enforce topological consistency across village boundaries and cadastral parcels, eliminating slivers and overlaps.
- Integrated custom thematic layers and interactive map viewers in QGIS and Leaflet, streamlining land administration and spatial planning for regional officers.
2023–2024
Indonesia
Freelance Geospatial Consultant
Independent
Delivered UAV LiDAR flight missions, ground control networks, and 3D digital twins for commercial and national defense clients adhering to BIG specifications.
- UAV LiDAR pilot for PT Geo Survey Persada: planned UAV flight paths and GCP/ICP deployment strategies for high-precision LiDAR mapping on disaster-mitigation, land-subsidence monitoring, and national defence projects to BIG standards.
- 3D digital twin: built an interactive 3D GIS model of an apartment complex in ArcGIS Pro, integrating BIM and Revit data so property managers could query individual units for live attribute data, replacing spreadsheet-based tracking.
- Conducted comprehensive quality control and spatial accuracy validation across all LiDAR point cloud deliverables, ensuring horizontal and vertical precision conforming to national mapping standards.
2023
Sleman, Yogyakarta, Indonesia
Technical Expert (Tenaga Ahli)
Sleman Regional Disaster Management Agency (BPBD)
Led the enhancement of SiPandu Merapi, the agency's official disaster response system bridging real-time field reporting and command-center decision support.
- Led the enhancement of SiPandu Merapi, developing a Web Admin Dashboard for operators to manage evacuation logic, refugee logistics, and shelter availability.
- Engineered a React Native mobile application empowering residents and field volunteers to report volcanic activity and localized hazards in real time.
- Integrated interactive maps featuring 'Sister Village' pairings and designated evacuation routes from Disaster-Prone Areas (KRB) to safe assembly points.
- Established seamless data synchronization between mobile field submissions and BPBD command center databases, maintaining zero-latency information flow during emergencies.
2022–2023
Jakarta, Indonesia
Geodetic Engineer, Toll Road Planning Division
PT Hutama Karya (Persero)
Re-architected spatial data delivery for toll road planning WebGIS on WMS standards and built custom widgets, cutting data load time by 94%.
- Re-architected spatial data delivery for the toll road planning WebGIS on WMS standards, cutting data load time by 94% from over 3 minutes down to 12 seconds.
- Validated system usability with internal engineering teams, achieving a System Usability Scale (SUS) score of 70 (Good/Acceptable).
- Developed three custom functional widgets: eDraw (interactive route annotations with export/import), Smart Downloader (AOI-based vector data extraction for Shapefile/DWG), and Custom Print (automated map generation to official corporate cartographic standards).
- Carried out Mobile Laser Scanner (MLS) acquisition and analysis for as-built versus design verification on Trans-Sumatra toll sections, and built the internal GIS geoportal for toll road planning.
2021–2022
Indonesia
Assistant Lecturer & WebGIS Developer
Universitas Gadjah Mada & Freelance (BIG, Idealog)
Delivered academic instruction in GIS and Python programming while engineering full-stack WebGIS solutions for national spatial agencies.
- Assistant Lecturer (Universitas Gadjah Mada): led practicals in Geographic Information Systems (spatial analysis via ArcGIS/QGIS) and Computer Programming (Python and OOP), co-authoring teaching material on object-oriented inheritance.
- Full-Stack & Backend Developer (freelance for BIG and Idealog): redesigned the SITASWIL national boundary system interface, integrated Nominatim geocoding with RBAC, and built the Django REST API for a government climate resilience module.
- GIS Operator Coordinator (freelance, national land agency) and Technical Engineer (SuperMap GIS internship): large-scale cadastral digitisation with topology quality control, and land-surface-temperature analysis in SuperMap iDesktop.
Projects
One line each. Open a row for details, or read its case study.
2026
A real-time alerting service designed to monitor the BMKG API and dispatch instant notifications for significant weather events and earthquakes across Indonesia. The system continuously polls data feeds and pushes formatted alerts to external messaging platforms via webhooks whenever predefined risk thresholds are met. Fully containerized with Docker for seamless self-hosted deployment.
- Built an automated polling engine that continuously tracks seismic and meteorological feeds for critical updates.
- Integrated webhook pipelines to dispatch immediate, well-formatted alerts to end-users on messaging platforms.
- Containerized the application via Docker, allowing seamless self-hosted deployment on environments such as Proxmox.
2024–2026
A comprehensive dataset and REST API serving complete hierarchical administrative divisions of Indonesia, from Provinces and Regencies down to Districts and Villages (Kelurahan/Desa). Provides developers with structured geographical data essential for building location-aware applications, web mapping platforms, or spatial data analysis tools.
- Curated and served a unified, clean JSON structure representing the complex hierarchy of Indonesian administrative zones.
- Eliminated the need for manual scraping of government region datasets, providing a ready-to-use data source for web forms and maps.
- Structured datasets for low-latency lookups, optimized for cascading dropdown selectors and autocomplete in frontend applications.
2026
Developed a modern RESTful API wrapper for Indonesian meteorological and geophysical agency (BMKG) open data, converting legacy XML feeds into developer-friendly JSON format. Features a Model Context Protocol (MCP) server integration allowing AI agents to natively query real-time Indonesian weather forecasts and seismic activity.
- Engineered an automated pipeline to convert complex BMKG XML feeds into clean, standardized JSON APIs.
- Implemented an MCP server allowing AI assistants direct programmatic access to real-time meteorological and geophysical data.
- Packaged and deployed the service on Vercel edge runtime for high availability and zero-maintenance scaling.
2025
Specialized geospatial intelligence tool developed to validate and visualize shifts and infrastructure changes in Singapore's public transport reference database. Operates as an automated change detection system that identifies discrepancies including shifted bus stops, renamed stations, and removed assets using Haversine distance calculations and dynamic map connectors.
- Categorized and visualized critical data updates, tracking coordinate shifts, renamed stations, and missing assets in a single validation pass.
- Engineered visual logic drawing dashed connectors between asset original and updated locations to immediately highlight displacement.
- Built a dynamic statistics panel calculating real-time metrics including average displacement distance (60.05 m) and extreme outliers (up to 362.86 m).
- Implemented a typeahead search engine enabling users to filter assets by audit category for rapid data validation.
2024–2026
A comprehensive web-based utility to validate, repair, and analyze GeoJSON boundaries for geospatial developers and routing engines. Automatically detects and resolves geometry defects such as 3D elevation stripping, unclosed rings, winding order issues, and MultiPolygon shard isolations, featuring an in-browser spatial diff engine and OSRM Polyline decoder.
- Engineered an automated spatial validator that repairs non-standard GeoJSON structures, stripping 3D coordinates and isolating valid primary boundaries.
- Created an interactive spatial diff tool allowing users to overlay multiple geofences, computing intersection geometries and overlap percentages on the fly.
- Developed an OSRM Polyline decoder and converter supporting precision levels 5 and 6 directly from API URL strings.
- Architected a privacy-first, 100% client-side pipeline ensuring confidential proprietary geofence boundaries never leave the user browser.
2024–2025
Modern, containerized graphical frontend interface engineered to interact with the Open Source Routing Machine (OSRM) backend. Provides a dedicated debug GUI to visualize underlying routing graph nodes, edges, speed weightings, and turn maneuver instructions, accelerating routing profile calibration across custom road networks.
- Engineered a dedicated routing debug mode visualizing graph network primitives including nodes, edge segments, cells, and turn maneuver angles.
- Published a production-ready Docker image (dhanyyudi/myosrm-frontend) enabling engineering teams to deploy debugging interfaces via a single command.
- Built multi-modal routing profile support (Car, Bike, Foot) with real-time metrics for travel speed, segment durations, and distance calculations.
- Engineered a CSV batch waypoint import and export utility for validating multi-stop delivery sequences against custom OSRM backends.
2023–2024
Comprehensive spatial asset management dashboard architected for PT Hutama Karya (Persero) to digitize the maintenance lifecycle of the Trans Sumatra Toll Road. Integrates ArcGIS Enterprise with UAV LiDAR elevation models to build an infrastructure digital twin, replacing manual inspection sheets with spatial analytics.
- Monitored a 131.69 km toll corridor continuously, providing executive visibility into the Asset Condition Index (99.88% Good vs. 0.12% Damaged).
- Geolocated and classified specific pavement distress incidents, pinpointing exactly 58 segments requiring immediate rehabilitation out of nearly 50,000.
- Mapped granular damage classifications including potholes, rutting, and crocodile cracking to direct field maintenance crews accurately.
- Eliminated reporting bottlenecks by piping drone survey data directly into executive dashboards, cutting inspection turnaround times.
2024
Suite of analytical dashboards engineered in Power BI and ArcGIS for Power BI to support construction supervision of the Trans Sumatra Toll Road. Integrates geotechnical borehole data with spatial mapping to track drilling progress on the Jambi-Rengat corridor, while auditing Building Information Modeling (BIM) compliance across project contractors.
- Spatially mapped and analyzed over 9,800 geotechnical borehole locations, correlating depth metrics with geographic coordinates to track soil stratigraphy.
- Built performance tracking charts auditing borehole logging throughput across major engineering consulting firms.
- Created executive BIM compliance scorecards tracking contractor milestones against an 80-point target across sections like Padang-Sicincin and Junction Palembang.
- Enabled monthly parameter audits including 3D model clash detection, helping project managers resolve engineering bottlenecks before ground construction.
2024
Interactive 3D GIS digital twin developed for Urban Heights Residence, bridging Building Information Modeling (BIM) architectural models with geospatial query systems in ArcGIS Pro and ArcGIS Online. Enables property managers to inspect building units in their true 3D spatial orientation with real-time property attributes.
- Modeled individual apartment units with high spatial precision, enabling room-level attribute querying within a city-scale web scene.
- Integrated critical property metrics directly into 3D unit volumes, displaying unit pricing, floor area (31.52 m²), and occupancy status via interactive popups.
- Streamlined facility management by replacing manual spreadsheet registers with an interactive 3D web interface for sales and maintenance operations.
- Pioneered vertical living spatial asset management aligned with smart city digital twin standards.
2022–2023
Engineered an optimized WebGIS application for PT Hutama Karya (Persero) to streamline the route alignment planning and spatial asset visualization of the Trans Sumatra Toll Road megaproject. Re-architected data transmission using OGC Web Map Service (WMS) standards and built custom functional widgets.
- Achieved a 94% reduction in spatial data loading time, cutting application response latency from over three minutes down to 12 seconds.
- Validated usability with internal civil and survey engineers, securing a System Usability Scale (SUS) score of 70 (Acceptable/Good rating).
- Developed custom eDraw annotation widget enabling engineers to mark route alignments and export/import survey markings directly.
- Built Smart Downloader and Custom Print widgets automating CAD/Shapefile extraction and standardized corporate cartographic map exports.
2023
Led the software engineering enhancement of SiPandu Merapi, the official volcanic disaster response ecosystem for the Sleman Regional Disaster Management Agency (BPBD). Engineered a dual-interface architecture consisting of an administrative command web portal and a React Native mobile application for citizen field reporting.
- Engineered a crowdsourced field report feature allowing residents and volunteers to submit real-time photographic updates on localized volcanic hazards.
- Built an administrative command console for BPBD operators to manage evacuation logic, refugee logistics, and emergency shelter capacity.
- Integrated interactive maps featuring sister-village pairing relationships and official evacuation routes guiding communities from hazard zones to safe assembly points.
- Established zero-latency synchronization between mobile client applications and the central disaster command repository.
2021
Modernization of SITASWIL, the official administrative boundary information platform for the Indonesian Geospatial Information Agency (Badan Informasi Geospasial / BIG). Delivered a complete landing page redesign, integrated OpenStreetMap Nominatim geocoding services, and enforced strict government data security protocols.
- Overhauled platform user interface and navigation flow, significantly improving usability for central and regional government stakeholders.
- Integrated the Nominatim geocoding API to enable rapid, precise boundary searches across national administrative levels.
- Engineered a Role-Based Access Control (RBAC) security layer ensuring authorized inter-ministerial access to sensitive jurisdictional spatial data.
- Refactored mapping service endpoints to reduce API latency and enhance server stability during high-volume query periods.
2021
Engineered backend data collection and spatial processing services for the Climate Resilience module of the AKSARA platform, a national strategic initiative led by the Ministry of National Development Planning (Bappenas). Connected complex environmental database schemas with interactive web mapping interfaces.
- Digitized reporting workflows for national Climate Resilience programs, transitioning manual document submissions into a unified online form engine.
- Developed high-throughput Django REST APIs serving multidimensional environmental indicators to frontend map viewers.
- Designed custom relational PostgreSQL/PostGIS schemas ensuring rigorous validation of climate hazard and regional vulnerability parameters.
- Directly supported government tracking of Low Carbon Development and Climate Resilience targets within the national development roadmap (RPJMN).
2021
Conducted high-precision spatial solar radiation modeling to quantify building rooftop photovoltaic (PV) generation potential across Yogyakarta City. Presented at Seminar Nasional Geomatika 2021 (awarded Best Presenter) and deployed as an interactive analytical dashboard empowering municipal planners to prioritize renewable energy zones.
- Analyzed and mapped solar radiation potential across 9,700 individual building footprints with rooftop-level geometric accuracy.
- Quantified a city-wide photovoltaic potential exceeding 2.2 million MWh/m²/year, benchmarking generation against municipal electrical consumption.
- Identified Umbulharjo district as the highest-yield solar zone, providing data-driven targeting for municipal rooftop solar pilot projects.
- Delivered a responsive dark-themed dashboard allowing municipal planners to filter metrics by district and inspect rooftop yields interactively.
2021
Spearheaded user experience audit and complete interface modernization for the AKSARA WebGIS platform under the Ministry of National Development Planning (Bappenas). Transformed text-heavy scientific simulation forms into an intuitive dashboard design system accessible to government policymakers.
- Re-architected navigation information architecture, replacing scattered multi-tier header menus with an organized left sidebar navigation.
- Introduced a coherent visual design system using card-based modules to clearly separate environmental visualization metrics from simulation inputs.
- Redesigned scenario simulation parameter controls with interactive sliders and toggles, reducing training overhead for government users.
- Delivered high-fidelity interactive Figma prototypes aligning technical data models with policy-oriented presentation standards.
Skills
Pick a skill to light up the roles and projects that used it.
Geospatial Engineering
- Spatial Data Modelling
- Coordinate Reference Systems (CRS)
- Reprojection
- Topology Validation
- QC to National Standards
- GeoPandas
- GDAL
- Spatial SQL
GIS Operations & Data Management
- Custom OSM Basemaps
- Road Network Editing
- Transit Stop Data
- Waypoint Management
- Geofencing
- JOSM
- SuperMap iDesktop/iServer
Routing & Network Analysis
- Graph Extract/Partition/Customize
- Road Routing QA
- OpenStreetMap Operations
- Osmium & Pyosmium PBF
- Conditional Access Tagging
- Valhalla
- Vehicle Routing
- ETA Optimisation
Programming & WebGIS
- MapLibre GL
- Mapbox GL JS
- Node/Bun
- GeoServer (WMS/WFS)
Infrastructure & Cloud
- Jenkins CI
- Google Cloud Platform (GCP)
- Supabase
- ClickHouse
- Scheduled Pipelines
- Claude Code & MCP
Survey, Remote Sensing & 3D
- DTM/DEM Generation
- Photogrammetry
- Total Station
- Single Beam Echosounder
- Google Earth Engine
- BIM to GIS (Revit/IFC)
- Power BI (DAX)
Certificates
2026
Certificate of Competence, Geographic Information Systems Manager/Specialist (Jenjang 7)
BNSP via LSP Geospasial
View certificate2026
2024
2024
2024
Education
2021–2023
Yogyakarta, Indonesia
Universitas Gadjah Mada
Sarjana Terapan Teknik (B.Appl.Eng.), Surveying and Mapping Technology
- Awarded Best Presenter at Seminar Nasional Geomatika 2021 held by Badan Informasi Geospasial (BIG)
- Led Prambanan Temple 3D deformation documentation using Geodetic GPS, Automatic Leveling, and Laser Scanner
2018–2021
Yogyakarta, Indonesia
Universitas Gadjah Mada
Diploma Tiga (D3), Geomatics Engineering
- Active member of KMDG (Keluarga Mahasiswa Diploma Geomatika) and geodetic field expedition teams
Publications
2024
LiDAR UAV Re-acquisition Efficiency with Land Cover Change Detection Using Satellite Imagery on the Planned Dumai–Kisaran Trans Sumatra Toll Road
PT Hutama Karya (Persero)
Technical research conducted during tenure at PT Hutama Karya (Persero) Toll Road Planning Division, evaluating UAV LiDAR re-acquisition efficiency through satellite-based land cover change detection along toll corridors.
2021
Mapping Potential of Solar Energy in Building Using Area Solar Radiation Method: Case Study in Yogyakarta City
Badan Informasi Geospasial (BIG) & Universitas Gadjah Mada
Presented at Seminar Nasional Geomatika 2021 and awarded Best Presenter. Modeled rooftop solar radiation potential using 3D building geometry and spatial solar radiation analysis.
Languages
- IndonesianNative
- EnglishProfessional Working
Volunteering
2021-12–2022-01
Lumajang, Jawa Timur, Indonesia
Koordinator Mahasiswa
KKN-PPM UGM Tanggap Bencana Semeru
Coordinated emergency relief, post-disaster rehabilitation programs, and volunteer operations for communities impacted by the Mount Semeru volcanic eruption.
- Formulated and executed community rehabilitation work programs to assist post-disaster recovery in affected villages around Mount Semeru.
- Coordinated disaster relief workflows with regional government agencies including PMI (Indonesian Red Cross), local health centers (Puskesmas), and regional police (Polsek).
- Managed logistical aid distribution, volunteer dispatching, and emergency assistance posts in field evacuation centers.
2018-09–2019-09
Yogyakarta, Indonesia
Wakil Kepala Departemen Medinfo
Keluarga Mahasiswa Departemen Teknologi Kebumian (KMDTK) UGM
Directed digital media communications, graphic branding, and event publication for the student family of the Department of Earth Technology at Universitas Gadjah Mada.
- Designed comprehensive Instagram feed layouts and promotional digital visual assets for all departmental activities.
- Coordinated documentation teams for photography, videography, and multimedia coverage across student development programs.
2019-01–2019-12
Yogyakarta, Indonesia
Active Member, Media and Information Division
KMDG (Keluarga Mahasiswa Diploma Geomatika) UGM & IMGI
Contributed to geomatics student community engagement, national student association forums, and digital geospatial education dissemination.
- Participated in national geomatics student conventions and social service initiatives organized by Ikatan Mahasiswa Geodesi Indonesia (IMGI).
- Curated and designed geospatial technology education content for geomatics student community social channels.
2019-01–2019-12
Yogyakarta, Indonesia
Staff Internal Kementerian Keuangan
Badan Eksekutif Mahasiswa (BEM KM SV UGM)
Managed activity proposal evaluations, budget allocation assessments (RAB), and monthly financial accountability reporting for student government operations.
- Reviewed and audited incoming project proposals from student organizations to assess feasibility and budget alignment.
- Compiled detailed budget allocation plans (RAB) and designed monthly financial reports ensuring fiscal transparency.