Efri Dian Kusuma

Geodetic and GIS specialist with 8+ years of field surveying and spatial data experience, including direct work supporting oil & gas infrastructure (gas pipeline right-of-way mapping for PT Transportasi Gas Indonesia) and an oil & gas-affiliated geospatial/environmental program for PT Pertamina Hulu Rokan (geolistrik survey lines, land access mapping, and contaminated-soil area delineation). BNSP-certified Expert-level GIS Specialist under the Geodesy sub-classification (Level 7). Skilled in GNSS/GPS, Total Station, geodetic control networks, ArcGIS Pro/ArcMap, and UAV/drone photogrammetry and bathymetric survey.

Comfortable coordinating with multidisciplinary field teams and third-party survey contractors under HSE-compliant field operations.

Project Coordinator / Subcontractor at PT Inhu Jaya Sejahterah (2026-06 – 2026-07)

Gas Pipeline ROW, PT Transportasi Gas Indonesia (TGI)

• Coordinated drone pilot teams for aerial mapping and documentation along the TGI gas pipeline right-of-way (RO2 Belilas, RO3 Pekanbaru)
• Processed Class Location 3 orthophoto mapping with Agisoft Metashape and produced map layouts in ArcMap
• Ensured HSSE compliance and technical QC of all survey and documentation deliverables

Geospatial Data Preparer (consortium member) at MZON Consortium (2024 – 2024)

PT Pertamina Hulu Rokan (PHR)

• Prepared geodetic/GIS work maps for PHR's environmental and exploration-support program: 137 geolistrik survey lines (~22.9 km) with GPS Geodetic benchmark references
• Mapped land access boundaries and delineated contaminated-soil (TTM) areas using GPS-referenced coordinate surveys
• Produced coordinate tables, legends, and technical work maps per site, coordinating with field survey teams

Land Surveyor / Team Lead / Team Supervisor at Multiple survey consultancies (CV. Jack Consultant, PT Hasanah Surveyor Raya, PT Trikarsa, CV. IRVOTECH, CV. Safta Eka Tama) (2021-02 – 2024-10)

• Led 10+ topographic, bathymetric, and tidal survey projects for port masterplans, flood-control design, drainage masterplans, and irrigation area investigations
• Established geodetic control networks and benchmarks; performed data correction/processing and technical reporting for government and private clients

Geographic Information Systems Analyst at First Resources Ltd. (2018-08 – 2020-12)

• Produced areal-statement and land-clearing progress maps for plantation development using GIS and UAV data
• Analyzed replanting needs and developed spatial planning maps for underproductive plantation areas

GIS Specialist / GIS Analyst at PT Hasanah Surveyor Raya (2016-06 – 2021-12)

Multiple engagements

• Conducted fire-hazard vulnerability analysis, road inventory surveys, RDTR spatial planning, and flood-prone area classification
• Coordinated satellite imagery procurement and orthorectification for regional spatial planning (RTRW)

S.Si. in Geografi Lingkungan (Environmental Geography) – Universitas Gadjah Mada (UGM) (2010 – 2016)