Gerardo Ezequiel Martín Carreño Environmental science | Spatial data | Software engineering | Climate and sustainability London, United Kingdom me@gerardoezequiel.xyz https://gerardoezequiel.xyz https://www.linkedin.com/in/gerardoezequiel/ PROFILE I build spatial intelligence for decisions about cities, climate and location. My background connects environmental science, sustainability and spatial data science with data engineering and full-stack delivery. Experience spans European retail location intelligence, urban-heat research, circular-city methods and fractional technology leadership. PhD researcher at UCL's Centre for Advanced Spatial Analysis (CASA), The Bartlett. Building geospatial.careers and participating in Carbon13. PROFESSIONAL EXPERIENCE Fractional Chief Technology Officer CommunityAI, London | 2026–Oct 2026 Started with a technical audit and implementation roadmap, then led solution architecture, data engineering, bespoke spatial modelling and software delivery for an early-stage community-intelligence proof of concept. Set technical strategy and introduced provenance, licence governance, spatial validation and reproducible release controls for location-intelligence and media-optimisation questions. Full-Stack Spatial Data Scientist TJX Europe, London | Sep 2023–May 2026 Delivered geospatial analysis for European markets and built cloud-native workflows connecting loyalty, footfall and demographic evidence. Automated site-selection, catchment and cannibalisation analysis that had required weeks of manual work, and presented the work at the Spatial Data Science Conference 2025. Researcher and Spatial Data Analyst Metabolism of Cities · Horizon 2020 CityLoops, from London | Feb 2022–Feb 2023 Co-developed and co-authored CityLoops' Urban Circularity Assessment method, adapting Eurostat economy-wide material-flow analysis to city scale for the Closing the Loop for Urban Material Flows project. Supported application across five pilots, built Sankey and CARTO outputs, and managed two analysts. Freelance Spatial Data Analyst Ecotopia Urbana · Canary Islands and Catalonia | Jan 2020–Feb 2023 Delivered freelance urban-sustainability consulting, municipal energy and emissions analysis, and spatial evidence for the Urban Agenda for the Canary Islands, alongside later research roles. Spatial Data Scientist (Intern), then Junior Researcher Metabolic · Horizon 2020 CENTRINNO, Amsterdam and London | Mar 2021–Feb 2022 Intern from March to September 2021, then Junior Researcher from October 2021 to February 2022. Co-authored CENTRINNO's Cartography Alpha Version for nine European pilots; modelled EU27 building stocks and flows across 144 typologies for European Commission JRC study JRC130992; and trained a Sentinel-1/LUCAS land-use classifier in Google Earth Engine for an EEA-commissioned project. Spatial Data Analyst (Intern) BCNecologia, Barcelona's urban ecology agency | Jun 2019–Jan 2020 Developed and mapped a territorial proposal for Barcelona's home-care service within the Superilles Socials programme, combining neighbourhood structure, service demand and urban-context indicators. TECHNICAL AND RESEARCH SKILLS Data engineering: Python, SQL, dbt, GCP, BigQuery, Cloud Storage, PostGIS, DuckDB, GeoParquet, PMTiles and data-quality gates. Architecture and delivery: Technology strategy, solution architecture, delivery design and stakeholder translation. Spatial data science: Python, SQL, PostGIS, GeoAI, spatial statistics, remote sensing, location intelligence and urban modelling. Product engineering: TypeScript, React, Next.js, MapLibre, deck.gl, Three.js, APIs and browser-native analytics. Urban and environmental research: Urban metabolism, circularity, climate adaptation, material flows, housing and public-interest evidence. EDUCATION PhD researcher Centre for Advanced Spatial Analysis (CASA), The Bartlett, UCL | Oct 2026–present MSc Urban Spatial Science Centre for Advanced Spatial Analysis, The Bartlett, UCL · Distinction | 2022–2024 · part-time Software Engineering Immersive General Assembly | 2020 MSc Sustainable Intervention in the Built Environment (MISMeC) Vallès School of Architecture, Universitat Politècnica de Catalunya | 2018–2019 MSc Sustainability Science and Technology University Research Institute for Sustainability Science and Technologies, Universitat Politècnica de Catalunya | 2017–2019 BSc Environmental Sciences Faculty of Sciences, University of Granada | 2013–2017 SELECTED TALKS Adapting Cities with AI Academy alumni panellist · Urban AI Conversation #49 | Mar 2026 https://www.youtube.com/watch?v=gRxKk4mOl6g From location analysis to full-stack spatial data science Speaker · Spatial Data Science Conference, Royal Geographical Society | May 2025 https://spatial-data-science-conference.com/2025/london/ SELECTED WORK Climate and urban-heat research: https://gerardoezequiel.xyz/work/shaping-cool-cities Urban circularity methods: https://gerardoezequiel.xyz/work/urban-circularity-assessment Fractional CTO delivery: https://gerardoezequiel.xyz/work/community-ai