Ivan Arias — GIS Analyst

Professional Summary & Achievements

GIS and spatial data specialist with 13 years of professional geospatial work in the energy sector. At PDVSA (Venezuela and Ecuador, 2005–2018) built and maintained field-development geodatabases and geologic map series in ArcGIS, integrating well-log, core and seismic data across multiple basins; MSc research applied geostatistical spatial modelling across 65 exploration wells. Since 2022, extended that foundation into Python, PostGIS, spatial SQL, FastAPI and Leaflet, building full-stack web GIS applications.

65 exploration wells MSc geostatistical spatial modelling, Barinas Basin.
20+ projects in the full technical portfolio, spanning GIS, cloud and security coursework.

Key Competencies

Geospatial: ArcGIS, QGIS, PostGIS, spatial SQL, GeoJSON, Leaflet, geodatabase design & maintenance, thematic mapping, cartography & map-series production, coordinate reference systems, geostatistics & 3D spatial modelling
Data & Backend: Python, SQL, PostgreSQL, FastAPI, Flask, SQLAlchemy, Alembic, REST APIs, Plotly Dash
Web: JavaScript, React, Astro, Vite, Tailwind CSS
Platform: Git, Linux, Docker, AWS, Terraform, CI/CD
Subsurface (2005–2018): Petrel, OpenWorks, Landmark, StratWorks, IRAP RMS, WellCad, sequence stratigraphy, reservoir characterisation, well-log analysis, petrography

Selected Projects

GIS Competency Portfolio: Evidence-based portfolio documenting core GIS competencies — workflows, SQL, and spatial data QA. — geospatial.hcoco1.com
Oil & Gas GIS Web App: Full-stack web GIS for field infrastructure — boreholes, pipelines, licence boundaries. — maps.hcoco1.com
Leaflet Vanilla JS Web Map: Framework-free spatial web application — layer management, interaction patterns, responsive UI. — gis.hcoco1.com
Student Performance Dashboard: Python and Plotly Dash analytics dashboard for academic performance data. — www.dashboard.hcoco1.com

Full portfolio (20+ projects, including cloud and security coursework): hcoco1.com/portfolio

Experience

GIS & Subsurface Spatial Data |PDVSA |Venezuela & Ecuador |2005 — 2018 (13 years)

Laboratory → drilling → exploration: Sedimentologist, Geological Laboratory (2005–2009) · Operational Geologist, Drilling (2009–2011) · Sedimentologist, Exploration (2011–2013) · Stratigrapher, PDVSA Ecuador rotation (2013–2015) · Sedimentologist & Stratigrapher, Exploration (2015–2018).

Produced thematic maps of oil exploration fields in ArcGIS to support exploration screening, and built/maintained the field-development geodatabases used by cross-functional exploration and drilling teams.
Constructed regional stratigraphic frameworks and interpreted depositional systems across the Barinas-Apure Basin, Santa Elena Fold Belt (Ecuador rotation) and Progreso Basin.
Integrated well-log, core and seismic data for subsurface correlation and prospect evaluation; delivered laboratory characterisation (core description, petrography, XRD/XRF) and real-time wellsite interpretation during drilling.

ArcGIS · Petrel · OpenWorks · Landmark · IRAP RMS · Seismic Interpretation · Reservoir Characterisation

Independent Geoscience Consultant |Independent |Venezuela |2018 — 2019

Sedimentology, stratigraphy and subsurface interpretation on a consulting basis (ArcGIS, Petrel).

ArcGIS · Petrel

Additional Experience (concurrent employment) |Multiple employers |USA → Netherlands |2019 — present

Full-time employment maintained throughout the career transition, alongside the independent GIS practice.

Wasco, Den Haag (2026–present).
Amazon, Orlando FL (2020–2025) — 99%+ accuracy at 2,000+ parcels/day.
's-Hertogenbosch: Fidelity Fulfilment & CEVA Logistics (2025–2026); self-employed landscaping, Orlando FL (2019–2020).

Education & Qualifications

Geological Engineer|Central University of Venezuela|1999 — 2005
MSc Geological Sciences (coursework & thesis completed)|Central University of Venezuela|2009 — 2013
Full-Stack Engineering|Flatiron School|2023
Cloud Mastery|Digital Cloud Training|2024
Cybersecurity|Fullstack Academy|2024

Languages: Spanish (Native), English (C1), Dutch (A1), Work authorisation (EU)