Founding Engineer · Signalyze AI
From freelance projects in Quixeramobim to AI products raising $300k from US investors. That’s what I do.
Currently building at Signalyze AI (Indiana, US) · Available for select projects · 2026
$17K generated in month one — $300K+ raised through MVPs — 7 years shipping production code
Currently Founding Engineer at Signalyze AI. Previously: Lead Developer, Full Stack Developer, Freelance Builder.
I started writing code in 2018, in a town in the interior of Ceará that most Brazilians don’t even know exists. With no coworking spaces or references nearby, when a system broke, I fixed it, and if I had no idea what to do, I learned. It’s not a story I tell to sound humble (or the opposite), but it’s the reason I ship the way I do today.
In early 2025 I dropped out of Computer Science at UFC to go all-in on a product. First month after that: $17k in revenue and I helped close a $300k round for Signalyze AI, where I’m now Founding Engineer. I don’t see myself as a dev who happens to care about the business side—I’m someone who uses code to do what needs to be done.
“I care about revenue as much as I care about code quality. Most engineers I know don’t see these as separate problems.”
Empty Figma to live Kubernetes. Architecture decisions, frontend, backend, infra, deploy, iteration. No handoffs, no “that’s not my job” — because when I started, there was no one else to hand off to.
Kafka, RabbitMQ, Kubernetes, Terraform, Redis, PostgreSQL at scale. Not résumé stuffing — I reach for these tools when the product earns them, and I stay out of them when it doesn’t.
I’ve shipped checkout platforms, marketplaces, SaaS tools, and internal systems for teams that couldn’t afford to wait six months for a roadmap.
Founding Engineer · 2026–present
Built the core product from zero. Architected the stack end-to-end, shipped the MVP that helped raise $300k, and generated $17k in revenue in the first month post-launch.
Next.js · Node.js · Kafka · RabbitMQ · PostgreSQL · Kubernetes
Lead Developer · 2024–2026
AI-powered ticket marketplace. Led the microservices transition, built the discovery agent, checkout flow, wallet system, and location-based filtering from the ground up.
Next.js · React Query · Prisma · MongoDB · Framer Motion · Shadcn/ui
Full Stack Developer · 2023
A platform connecting pet owners with local service providers. Worked alongside a team of developers shipping features across the full stack, from scheduling flows to provider management.
Next.js · Firebase · TypeScript · React
Solo Build · 2023
Full check-in/checkout, scheduling, inventory, and sales analytics for a local barbershop. Delivered as a desktop-ready web app on Electron. One of the first things I ever shipped for a paying client.
Next.js · Firebase · ElectronJS
TypeScript
Next.js
Node.js
React
Next.js App Router
Tailwind CSS
Framer Motion
Shadcn/ui
React Query
Node.js
PostgreSQL
MongoDB
Firebase
Prisma
Redis
Kafka
RabbitMQ
Kubernetes
Terraform
Stripe
I pick tools based on what the product needs. (Not what’s trending on Twitter)
Everything else is a path to it. When you’re 200 kilometers from the nearest senior dev, you learn this fast.
Speed and craft aren’t opposites. Bad engineers make them feel that way because they can’t do both.
The engineers I admire can open any file in the codebase and tell you exactly why it’s there. That’s not seniority — that’s posture.
A backend call on the checkout page is not the same as a backend call on the admin panel. Knowing the difference is what separates engineers from builders.
“Kaio is the rare engineer who argues with you about product before he argues with you about code. Three weeks in, he was shipping things we hadn’t even scoped yet.”
— [Co-founder Name], Co-founder, Signalyze AI
You need someone who can own the stack, talk to you about market fit, and ship before the seed round runs out. That’s the shape of the problem I like best.
You’ve outgrown “just build it.” You need someone who owns architecture decisions, mentors a team, and still writes code daily. I’ve been that person for the last two years.
If you’ve paid for beautiful features nobody asked for, we should talk. I’d rather ship a boring thing that makes money than a clever thing that doesn’t.