I'm Gustavo. I embed with a team to scope, build and ship LLM systems that reach real users: agents with guardrails, retrieval over your own data, evals, and the engineering to run them. Twenty years building product, ten of them as Product Manager.
Customer enquiries, with context. An AI assistant for small businesses on their website and WhatsApp: retrieval over the business’s own site, guardrails, structured lead capture and hand-off to a human. Multi-tenant, with evals, in production.
my role Product definition, architecture, agent and evals, development and operation.
A B2B online store for a certified security installer in Galicia: catalogue by brand, customer accounts, orders and invoices, multi-language. Delivered working directly with the client, from discovery to launch.
my role Client-facing: discovery, scope, architecture, development and launch.
Secrets management for AI-assisted development. Zero-knowledge: keys are encrypted on the developer’s machine and decrypted only on verified devices. A CLI your coding agent can use, and an SDK for React Native and Expo.
my role Product definition, web and mobile development, and security architecture.
Compare Amazon returns lots in one place. Aggregates and normalises six supplier catalogues (scraping, manifests, discounts) into one searchable, SEO-first site for resellers in Spain.
my role Product definition, catalogue aggregation, development and SEO.
Forward Deployed Engineer: I work inside the customer's team, understanding their needs from the first definition of the use case to the system running in production. AI agents write a lot of the code; I own the scoping, the architecture, the review and what ships.
Sit with the people who own the process. Agree on the problem, the data, the constraints and what a good outcome looks like. Write the spec and the architecture decisions before the first line of code.
Prototype fast, then harden: retrieval, guardrails, permissions, fallbacks and hand-off to a human. Every change is reviewed and checked against evals, tests, security and cost before it ships.
CI/CD with a preview per change, monitoring and usage metrics from the first release. Then playbooks and building blocks the team can keep running without me.
Senior React / React Native Developer on AI products: mobile and web front-ends for LLM features, in a product team.
I embed with a client or build my own products, from discovery to production. Client work: A-Secur’s B2B store, delivered working directly with the business. Own products: papaia (AI assistant with RAG and evals), Koove and LotesOnline, built with AI coding agents and a documented workflow: spec and architecture first, small reviewed changes, tests, security review, CI/CD.
React/React Native Developer developing native multi device video apps using react and react native javascript framework
Product Manager for Cruises and Offers, ten years with business stakeholders and customers: discovery, flow definition, wireframes, delivery and follow-up. Front-end developer on the same products with JavaScript and React.
Frontend developer on Multi-platform video distribution content
Frontend and Backend developer working with websites, microsites, online ads, and rich media ads
Frontend and Backend developer creating websites for different clients
FullStack developer creating websites for different clubs, photo galleries, and online ticket stores
