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Gerardo Ezequiel Martín Carreño

Technology direction from product question to architecture, evidence controls and delivery plan.

me@gerardoezequiel.xyz  ·  gerardoezequiel.xyz  ·  linkedin.com/in/gerardoezequiel  ·  London

3 case studiesCase · evidence · claim boundaryScreen and A4 edition

CommunityAI

Technical direction for an early-stage community-intelligence proof of concept, within a collaborative founding team.

Chief Technology Officer (Designate)

Organisation and platform

Solution architecture, Data architecture, GeoAI, Delivery leadership

As CTO-designate within the collaborative founding team, I set the technology and data direction and led the open-data rebuild. I develop bespoke spatial models to explore audience geography, location choices and media allocation within the proof of concept. I designed the data architecture, source and licence records, spatial validation and release checks, and built a test of whether candidate signals add predictive value beyond agreed baselines, keeping customer-specific validation separate.

As CTO-designate within the collaborative founding team, I set the technology and data direction and led the open-data rebuild. I develop bespoke spatial models to explore audience geography, location choices and media allocation within the proof of concept. I designed the data architecture, source and licence records, spatial validation and release checks, and built a test of whether candidate signals add predictive value beyond agreed baselines, keeping customer-specific validation separate.

  • CTO-designate mandate following a technical audit and staged platform roadmap.
  • An open-data architecture with documented sources, processing and model provenance.
  • Spatial holdouts and baseline comparisons built into validation.
  • Release controls distinguishing research outputs from customer-specific validation.

Where the work stands: This case describes my technical mandate within a founding team, not ownership or proven customer impact. Detailed architecture and results remain confidential. Predictive signals do not establish causal effects.

Climate Intelligence

An open-data climate console connecting a product question to source adapters, assessment logic and an inspectable interface.

The Climate Intelligence console: a globe carrying located climate stories, beside an exposure rail ranking 43 regions and a stack of 33 map layers.
Climate Intelligence (then named Ground Truth), captured on 22 September 2026, when all 43 sources had updated. The capture illustrates the interface; the figures in it are that moment’s, not current measurements.

Founder and full-stack developer

Site assessment and geographic context

Climate-data integration, Geospatial engineering, API design, Source provenance

I developed the climate console, source adapters and Site Assess API, building on an earlier situational-awareness concept. I connected map layers, a Sentinel-2 preview through STAC and a per-location assessment that records its sources and missing coverage. I also exposed the same functions through read-only tools for agent access.

I developed the climate console, source adapters and Site Assess API, building on an earlier situational-awareness concept. I connected map layers, a Sentinel-2 preview through STAC and a per-location assessment that records its sources and missing coverage. I also exposed the same functions through read-only tools for agent access.

  • An implemented map console for climate, hazard and energy context.
  • Source adapters and a per-location assessment API with missing-data handling.
  • Documented coastal and wildfire screening proxies, kept distinct from validated hazard models.
  • A read-only agent tool surface and a catalogue of sources and licence conditions.

Where the work stands: An exploratory screening prototype. Coastal exposure uses an elevation proxy and wildfire screening uses hot/dry conditions; neither is a full hazard model. The tool does not estimate insured loss or establish financial risk, commercial adoption or continuously live data.

Geospatial Careers

A career product connecting geospatial job evidence with practical application and learning workflows.

The Geospatial Careers development workspace showing a sample candidate's application draft, saved roles and CV evidence.
Career workspace in development, demonstrated with sample data. September 2026.

Founder and lead developer

Labour market and community

Data product, Data engineering, PostGIS, Research governance

I designed and built the workspace and its supporting PostGIS and dbt data platform. The development version connects reviewed CV import, role search, saved applications, tailored CVs and cover letters, document exports and learning priorities. I designed the interface to distinguish a candidate’s stated experience from job requirements and missing information, then checked the connected journey using sample candidates.

I designed and built the workspace and its supporting PostGIS and dbt data platform. The development version connects reviewed CV import, role search, saved applications, tailored CVs and cover letters, document exports and learning priorities. I designed the interface to distinguish a candidate’s stated experience from job requirements and missing information, then checked the connected journey using sample candidates.

  • A connected local journey from PDF CV import and review to saved roles, application preparation and learning.
  • Actual CV and cover-letter DOCX exports checked against sample candidates, with saved edits reopened in a fresh mobile browser context.
  • A responsive workspace with distinct guidance for new users, candidates with a CV and returning applicants.
  • Research and career interfaces that expose source dates, pay periods, missing information and the basis of a match.

Where the work stands: The illustrated workspace is in development and uses sample data. Local journey checks do not establish production availability, complete job coverage or hiring outcomes. Matching supports shortlisting, not a calibrated probability of being hired.

Methods and technology are stated within each case. Full CV and live work are available at gerardoezequiel.xyz. Every entry names its status, evidence and limits; confidential details remain private.