Reliable
AI Products
Applied AI Engineer shipping LLM agents, RAG and evals that are safe to put in front of real users, from the eval harness to an accessible, fast interface. TypeScript & Python · Next.js · NestJS · AWS · GCP.
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Hey, My name's
Marvin Rocha!
“Models are probabilistic. Products shouldn't be. I design AI systems where the model interprets and deterministic code decides, so every critical step is validated, tested and auditable.”
An Applied AI Engineer from Brazil, shipping LLM agents, RAG pipelines and evals for regulated industries (healthcare and fintech), with accessible, fast interfaces. IAAP WAS Candidate, M.Sc. student at UFBA.
2026
Viaflow
Applied AI Engineer shipping a production
LLM agent on WhatsApp for healthcare: 95%
field-level accuracy, a 120-scenario
adversarial eval harness, and 70% fewer
LLM calls via deterministic logic.
2026
Saipos
Software Engineer leading front-end
engineering for the Saipos brand relaunch:
Astro and Next.js 15 in partnership with
design and product, sub-1s LCP and
WCAG 2.2 AA (AAA where applicable).
2026
TARGIT Brasil
AI Engineer who architected Capivara
Compass, an AI-native analytics platform
with Holt-Winters forecasting and AI
agents, keeping LCP under 1s on
data-heavy dashboards.
2024
T-Alpha
Fullstack Engineer & Accessibility Lead for
two production fintech platforms (V2X Pay and
Planium Pay). Led the Next.js 15 migration:
72% TTFB reduction, 67% smaller bundles, and
a WCAG 2.2 AA-compliant banking design system.
