Sergio Ferreira
@sergioferreira2
GIS Specialist at IGAC who automated cadastral audits, cutting processing from three days to two hours.
SpainWhat I'm looking for
At IGAC, I designed and led an automated quality control system for cadastral map updates, joining digitised geometries with institutional records to detect inconsistencies. I developed PostgreSQL/PostGIS, Python and JavaScript tools and an interactive dashboard, reducing an audit from three days per person to two hours of automated processing.
Earlier at IGAC, I analysed consistency across cadastral layers and legal documents, supervised digitising decisions, and developed initial automation scripts for assigning rural postal addresses. I also built a road network that was more complete than the municipality's previous official map.
At K2 Ingeniería, I modelled environmental impacts, including noise, air quality and pollutant dispersion, and validated models with field data. Across my work, I look for ways to improve geospatial processes through automation, traceability and reproducible methods.
Experience
Work history, roles, and key accomplishments
GIS Editor
IGAC
Feb 2026 - Aug 2026 (6 months)
Designed and led a quality control system for cadastral map updates, developing automated tools in PostgreSQL/PostGIS, Python, and JavaScript. Coordinated field teams and improved audit processing from 3 days to 2 hours with over 90% accuracy.
GIS Consolidator
IGAC
Feb 2025 - Jan 2026 (11 months)
Analyzed cadastral systems for spatial consistency, supervised digitizing work, and defined legal-cartographic validation standards. Developed automation scripts and integrated data from WMS services and orthoimages.
GIS Digitiser
IGAC
Jul 2024 - Dec 2024 (5 months)
Digitized graphic features in ArcGIS Pro and performed quality control of graphic and alphanumeric data. Conducted compliance audits against legal documents with automated checks.
GIS Consultant
K2 Ingeniería
Apr 2022 - Jun 2024 (2 years 2 months)
Performed geospatial modelling of environmental components including noise, air quality, and water resources. Developed interpolation models, created receptor grids, and standardized production workflows for environmental maps.
Environmental Management Systems Specialist
Regional Public Administration
Mar 2019 - Nov 2019 (8 months)
Coordinated the solid waste component of the environmental management system and calculated the carbon footprint. Achieved higher recycling rates and proposed emissions compensation.
Education
Degrees, certifications, and relevant coursework
University of Zaragoza
Master's Degree, Geographic Information Science and Technology
Currently pursuing a Master's Degree in Geographic Information Science and Technology.
University of Santander (UDES)
Environmental Engineer, Environmental Engineering
Earned a degree in Environmental Engineering in 2021.
University of Santander (UDES)
Diploma, Environmental Management
Completed a Diploma in Environmental Management in Infrastructure Works in 2020, totaling 124 hours.
University of Santander (UDES)
Course, Water Treatment
Completed a course in Water Treatment Operation in 2020, totaling 16 hours.
Tech stack
Software and tools used professionally
Availability
Location
SpainAuthorized to work in
Salary expectations
Job categories
Interested in hiring Sergio?
You can contact Sergio and 90k+ other talented remote workers on Himalayas.
Message SergioGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
