Engineering AI products that are safe to put in front of real users.
An AI engineer's role is to treat model
output as a claim, not a fact, and ship
products that stay reliable and accessible.
Some words
Hey there! I'm an Applied AI Engineer and Fullstack Engineer with 4+
years shipping production systems, now focused on LLM products that
are safe to put in front of real users, from the eval harness to the interface.
I build LLM agents with Claude and OpenAI behind provider-agnostic
abstractions, RAG pipelines in Python, adversarial eval harnesses and
MCP servers, applied in healthcare and fintech under ANS, BCB and ANPD.
On the product side, I ship accessible WCAG 2.2 interfaces with Next.js
and React, event-driven backends with NestJS, and cloud infrastructure
on AWS and GCP with Terraform.
I am an IAAP WAS Candidate and an M.Sc. candidate in Computer Science
at UFBA, researching semantic transfer across disjoint domains.
I'm looking forward to collaborating and creating something great!
Marvin Rocha.
AI Engineering
I design AI systems where the model interprets and deterministic code decides.
LLM output is treated as a claim, not a fact: every critical step is validated,
tested and auditable, in regulated industries like healthcare and fintech.
Accessibility & Compliance
With a focus on inclusion and legal compliance, I build interfaces that meet
WCAG 2.1/2.2 (AA/AAA) and ADA/Section 508 standards from day one, reducing
legal exposure while reaching every user.
Fullstack & Cloud
I build event-driven backends with NestJS and DDD, fast Next.js front ends with
sub-1s LCP, and cloud infrastructure as code on AWS and GCP, so AI features
run on a foundation built to scale.
Development Lifecycle
I approach fullstack development with a focus on creating accessible, high-performance,
and efficient web applications. Each project follows a methodical
plan to assure it exceeds standards of quality and performance.
Workflow
My workflow for fullstack development is centered on teamwork, productivity,
and delivering high-quality code. I leverage the latest tools and techniques
to provide engaging and smooth user experiences.