Understand the business problem
Before a line of code: where your revenue leaks, what process you run manually and what tech can actually move.
We build sites, systems and automations to grow your business. You bring the problem, we ship it running — no empty promises.
From a simple site to a full system, with automation, all live. You don’t need to hire anyone else.
Most of AI today stops at the slide or the pretty demo. Here software goes live and earns — and few actually deliver that.
Before a line of code: where your revenue leaks, what process you run manually and what tech can actually move.
Pragmatic full-stack engineering. No Frankenstein stack, no promises. What goes live scales.
On top of software, agents that automate ops: support, follow-up, management. AI that takes boring work off your desk.
Real software, live, generating sales.

Portfolio site with lead capture, booking and integrated payment. Replaces Linktree + WhatsApp + manual billing.

Full store with optimized checkout and management dashboard for selling 3D-printed products. Premium UX in a commoditized category.

Client’s internal system — no public demo, but the results speak. Lean dashboard to track sales, inventory and performance without the bloat of a heavy ERP.

Landing page presenting services, capturing leads and opening a direct channel with the client. A real site for a business that lives offline.

Vegan content blog in MDX — categories, recipes with structured SEO and an owned newsletter. Live on its own domain, publishing weekly.

Catalog of homemade sweets and savories with cart and order closing straight on WhatsApp. Live on its own domain.

Institutional site + B2B catalog of packaging and disposables, with quote building that closes straight on WhatsApp. Showcase of the represented brands and two-sided capture: buyer and manufacturer.
We also build, run and sell our own ideas — from a revenue-generating SaaS to a game with an online ranking. Same stack, same rigor we ship to you.
Our own software to track public tenders on Brazil's PNCP portal: search, filters and deadline alerts by email. Built, run and sold by us — from database to billing.

A JezzBall remake: capture 75% of the arena and climb the ranking.

Spider, Klondike and FreeCell in one place, with a global ranking.
Pixel-art free kicks: bend it past the wall, beat the keeper and climb the ranking.
Software is not art. It’s revenue infrastructure.
Public release log. No makeup.
No middleman agency. You talk directly with who builds it.

Computer scientist with a background in critical industrial automation. I build software and AI agents that solve the right problem: generating revenue.
Donadão Labs is the operation I run: twelve products live, four in progress, and current focus on AI agents for businesses already earning, but still operating on WhatsApp.
No. The 30-minute diagnosis is for that. You arrive with the problem, leave with a plan: scope, timeline and what makes sense to build first.
Tell us what needs to run. In 30 minutes you get diagnosis + a real implementation plan.
Book a diagnosis →