Download this portfolio as PDF
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
CommunityAI
Technical direction for an early-stage community-intelligence proof of concept, within a collaborative founding team.
As fractional CTO, I began with a technical audit and turned its findings into a staged implementation roadmap. I set technical strategy, designed the solution and data architecture, and led data engineering, bespoke spatial modelling and software delivery. The open-data proof of concept explored audience geography, location choices and media allocation. I introduced source and licence records, spatial holdouts, baseline comparisons and reproducible release checks, keeping customer-specific validation separate.
As fractional CTO, I began with a technical audit and turned its findings into a staged implementation roadmap. I set technical strategy, designed the solution and data architecture, and led data engineering, bespoke spatial modelling and software delivery. The open-data proof of concept explored audience geography, location choices and media allocation. I introduced source and licence records, spatial holdouts, baseline comparisons and reproducible release checks, keeping customer-specific validation separate.
- A technical audit and staged implementation roadmap informing the fractional CTO engagement.
- 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: The engagement ended in October 2026. This case describes my delivered technical work, not ownership or proven customer impact. Detailed architecture and results remain confidential. Predictive signals do not establish causal effects.