Yio
AI communication platform — websites, chatbots and landing pages unified. Claude + RAG on serverless AWS.
FOUNDER · 2022–25
FORWARD DEPLOYED ENGINEER · HEAD OF AI · HANDS-ON LEADER FULLSTACK
Luiz Vieira
Engineering leader with 12+ years at the intersection of deep technical work and client impact. I build, ship, and lead — all at once.
[ intro video — 60s presentation ]
ABOUT ME
I am a software engineering leader with an entrepreneurial mindset, passionate about transforming complex business challenges into scalable products powered by modern software engineering and Artificial Intelligence. Over the past 12+ years, I have designed, built, and scaled products from concept to production, combining hands-on engineering, architecture, product thinking, and technical leadership.
EXPERIENCE
2022 — Present
Head of Software Engineering — MZ (Global IR Solutions)
Lead an engineering org of 35+ across multiple squads, partnering with the CTO on strategy and architecture. Drove Generative AI adoption across the product suite — RAG, Tool Calling, Agents — while keeping a hands-on engineering presence.
2025 — 2026
Forward Deployed Engineer — EasyTelling @ Cubo Itaú
Sole technical leader delivering an end-to-end Generative AI SaaS for scientific research: LLM orchestration, RAG over scientific knowledge bases, Tool Calling for data-viz workflows. Langchain · OpenAI · AWS Bedrock · Next.js.
2022 — 2025
CTO & Co-Founder — Yio @ Cubo Itaú
Founded an AI-powered communication platform unifying websites, chatbots and landing pages. AI core on Claude via AWS Bedrock with RAG and Tool Calling; serverless AWS + Next.js. Led full lifecycle from MVP to go-to-market.
2019 — 2022
Senior Engineer → Tech Lead → Engineering Manager — MZ
Three promotions in three years: from full-stack delivery on MZ's IR platform (Node.js, TypeScript) to leading tech leads across squads and standardizing the development and DevOps environment.
2018 — 2022
Earlier roles — consulting & product
Fractional tech lead for four Cubo Itaú startups (via Growyx); engineering-culture consultant at DDR/BlueOne; Technical PM & founding IT engineer at Sapore S.A.
SKILLS
Generative AI
LLMs (Claude, GPT-4, Llama)
RAG · Fine-Tuning · Tool Calling
AI Agents & Orchestration
Langchain · Bedrock · OpenAI SDK
RAG · Fine-Tuning · Tool Calling
AI Agents & Orchestration
Langchain · Bedrock · OpenAI SDK
Engineering
Node.js · TypeScript · Python
React · Next.js · Angular
Microservices · DDD · Clean Arch.
AWS (Certified) · Serverless · K8s
React · Next.js · Angular
Microservices · DDD · Clean Arch.
AWS (Certified) · Serverless · K8s
Leadership
Team scaling (35+ engineers)
Client-facing architecture
Full-cycle product development
Agile · OKRs · Hiring
Client-facing architecture
Full-cycle product development
Agile · OKRs · Hiring
SELECTED WORK
EasyTelling
GenAI SaaS for scientific research: RAG over knowledge bases, tool-calling data-viz pipelines.
FDE · 2025–26
MZ GenAI Suite
GenAI across an IR product suite — use-case discovery, AI architecture, coaching engineers on LLM patterns.
HEAD OF ENG · 2022–
EDUCATION
FIAP — System Analysis & Development 2020–22
Kaplan — Intensive English B2 2026
Impacta — Technical IT Certification 2017
AWS Certified Cloud PractitionerITIL V3 FoundationICS — Impacta Certified SpecialistDevOps & Agile Culture
RECOMMENDATIONS
“Luiz worked on several Growyx projects as tech lead and was always an exemplary professional. His technical leadership and his ability to align the team and stakeholders made a huge difference in delivering value to clients.”
João Paulo AraújoCo-founder & CEO Hunterhero · Especialista em IA para RecrutamentoManaged Luiz directly · Nov 2025
“Luiz is a great leader and manager. He's always striving to improve processes and products, and he has flawless technical skills and people management abilities. He's also a very good mentor, capable of training and helping less experienced professionals shine. Moreover, he is highly trustworthy, patient, and compassionate. Luiz is a 'mover and shaker' — he makes things happen through innovation and proactivity, with a pragmatic approach, which makes him an outstanding leader and professional.”
“Luiz is an excellent professional and an asset to any team he joins — committed, dedicated, and giving his teammates a great sense of confidence. He sets best practices and communicates clearly, ensuring sharp, well-defined decisions about what needs to be done. A key strength is his ability to read the company's landscape, from the technologies used in the infrastructure to leading the team, always focused on continuous, incremental delivery of the product.”
“Luiz is an incredible human being and an exemplary professional. In the time I had the opportunity to work alongside him, I saw his great capability and versatility across many areas. As a developer he always delivered beyond expectations, and as a leader he knew how to inspire the whole team, bringing out the best in every person. In short: an outstanding professional I highly recommend.”
“Without a doubt an excellent professional! He spares no effort to help whenever we hit a problem and to support us on new projects!”
Thayna RiosAdvertising · Sales Executive · Customer SuccessWorked with Luiz on the same team · Aug 2020
“During his time with us at TecBan, Luiz proved to be a highly dedicated professional, working directly in Capacity Planning and Performance. He was very keen to learn the technical and business mechanics of what we did, always giving great feedback — diligent and committed to every task. A very positive presence on the team; if the opportunity comes up in the future, I'd love to work with him again.”
“Luiz has always been a real prodigy in technology and IT, consistently delivering projects on time — even under pressure he surprised everyone. Beyond being a great professional, he's a wonderful human being you can't help but be friends with. Highly recommended!”
Clodoaldo OliveiraBusiness Development · M&A · Corporate DevelopmentWorked with Luiz on the same team · Oct 2016
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