technology company · software live
Software products that actually solve the problem — built by a fleet of AI agents, signed by real engineers.
A fleet of AI agents does the heavy lifting and senior engineers decide, review, and sign every release. From the store to the app, the site to WhatsApp support — we cover the whole stack, and what's on this page is already live.
What Bailder does
A team of engineers, a fleet of agents
Everything we build for companies, organized the way you hire: pick a front, see what it does. All come from the same process — with tests, CI, and the code yours — and all ship live, to a link.
From problem to live link, in 3 steps
-
You tell us the problem
Right here, in the chat. No sign-up, no call, no “a consultant will reach out”. You describe what's bugging you, the agent asks what a seasoned dev would ask — and you leave with a written preliminary scope. Free.
-
We lock scope and price
I read the conversation, message you on WhatsApp and we lock it down together: what's in the sprint, what's out, and what it costs. The price closes before we start. No open-ended hours, no invoice surprises.
-
It goes live
Every sprint ends with working software on a link — not a requirements PDF. You test it, use it, show it around. Want to keep going? We plan the next sprint. If not, the code is yours and we part as friends.
How a sprint goes, from zero to a link
-
before the first line
Scope and price locked in the conversation: what's in, what's out, what it costs. Nothing starts in the dark — not for you, not for us.
-
first hours
Skeleton live: repository, deploy and a real URL before any pretty screen exists. You can already open the link — even if it's still bare.
-
the core of the sprint
The heart of the problem: the feature that gives you a headache becomes working software. Every change goes through the tests before shipping — no generate, paste, pray.
-
end of the sprint
It goes fully live, with tests and CI. You open it, use it, show it to whoever you want. If you want to keep going, we plan the next sprint; if not, the code is yours.
exact days vary from project to project — what we lock is scope and price, not miracles
The people who hired us, talk
We don't have a pretty PowerPoint case study. We have people who put their money down, waited for the delivery, and ended up with their business running. Here's what they say:
“I was losing WhatsApp orders all day — a customer would message, I'd be knee-deep in work and never see it. Now support replies on its own and the order lands straight on the kitchen screen. The sales stopped leaking, and I stopped lying awake wondering how much had slipped away.”
What we delivered WhatsApp support, menu, and kitchen order board — live.
“I came in with a loose idea and figured it would take months of meetings before I saw anything standing. Within weeks I had the app in my hand, customers signing up, and payments coming in. What won me over was that they didn't dress it up: when a piece wasn't ready, they told me straight it wasn't. I'll take that any day.”
What we delivered A cleaning-gig marketplace: sign-up, payment, wallet, and payout — live with tests.
“It's a genuinely living-world game — economy, player market, live matches. It went up piece by piece, and each one already worked when I went to test it. Not once did they hand me a pretty screen that broke on the first click.”
What we delivered A football management game with a living world, economy, and live matches.
“Our internal process ran entirely by hand, spreadsheets going back and forth, nobody knowing the state of anything. I got a running system, with the code in our hands and covered by tests. The team stopped firefighting and started trusting the number on the screen.”
What we delivered An internal process-management system, code delivered and live.
“This site you're reading came out of the same process we sell: agents built it, engineers reviewed and signed every screen, it went live. It's not a portfolio case — it's the example you're already inside.”
What we delivered bailder.com — this site, live.
live right now
- Salgadelli live
- FreeDiária live
- Boleiragem live
- this site live
real status, checked every 30 minutes. Don't believe it? Click any of them.
Is this for you?
run a shop?
You run a store, a food business, a service — and the operation lives in WhatsApp, spreadsheets and your head. You've quoted a system and heard “six months”. You've signed up for a SaaS that didn't fit your process. We build the system the way YOUR operation works — service, orders, dashboard — and ship it fast.
Tell us how your operation works →got an idea?
You have a product idea worth validating and no technical co-founder. An agency quoted you the price of a car for an MVP; no-code hit its ceiling. We get the MVP off paper in a few sprints — web or mobile — so you can validate with customers and investors.
Tell us your idea →stuck in the IT queue?
You run operations at a mid-size company and need a dashboard, an automation, a WhatsApp or ERP integration — and the IT backlog is a year long. Fixed scope, locked price, small risk, delivered on a link.
Tell us what's stuck →Who signs this
Hi. I'm Sergio Brito, engineer and founder of Bailder. Here, AI agents write most of the code, run the tests, prep the deploys — and our team of engineers decides what matters, reviews and signs every release. We don't hide the AI: it's the reason we ship in days what used to take months. But not one line goes live without passing through one of our engineers.
How this protects you:
- Every project ships with an automated test suite and continuous integration. It's not “generate, paste, pray”.
- The code is yours. Standard market stack (Ruby on Rails, Postgres), repository in your account if you want, zero proprietary lock-in. Any senior dev on the market can take over tomorrow.
- This very site was built by that exact process. The proof of the method is the site itself.
— Sergio
the track record of the engineer who signs → sergio-brito.devHow we charge (no runaround)
The unit of everything here is the fixed-scope sprint: we define together what's in, lock the price before starting, and the sprint ends with software live — not a report.
Single sprint
A site, an automation, an AI attendant for your WhatsApp, an internal tool. One delivery, one price, one live link. The lowest-risk way in.
most people start here
Full product
2 to 4 sprints to get an MVP off paper — web or mobile — and into the hands of real users.
Continuous evolution
The same process that builds, maintains. Recurring sprints so the product grows without holding you hostage: pause whenever you want, the code stays yours.
The principles, in writing:
- You pay for deliveries that go live, not for hours.
- Scope and price close before we start. Always.
- The first conversation and the preliminary scope are free.
- The code is yours, from the first commit.
How much is your project? It depends on the scope — and we find the scope by talking. It's a fraction of a traditional software house's budget, and the first step costs nothing.
What you're probably asking yourself
“Is AI-written code any good?”
What's good or bad is code without review and without tests, wherever it comes from. Here, all code passes senior engineers, a test suite and CI before going live. The projects in the section above are the long answer.
“Doesn't fast mean shallow?”
Scroll up in the testimonials and click the game with its own economy and the marketplace with a mobile app. Fast here isn't cutting corners: it's not wasting months on meetings, documents and rework.
“What if you disappear?”
The code is yours, on a standard stack, in your repository if you want. Any senior dev takes over tomorrow. You're not hostage to me — by design.
“How much does it cost?”
Fixed price per sprint, set before we start — the model is right above. The exact number depends on your scope, and finding the scope is free, in the chat.
“Isn't there a SaaS for this already?”
Maybe. If there is one and it fits your process, I'll tell you so myself in the chat — I'm happy to say we're not the right house when we're not. Custom pays off when the way you operate IS your edge.
“What about my data, and my customers' data?”
Your contact data is used to reply to you, and nothing else. Projects follow LGPD (Brazil's data-protection law) and solid security practices from sprint one.
missing your question? that's literally what the chat is for → Ask in the chat
The only project missing from this page is yours
You've seen what we build, how we charge and who signs. The next step takes less time than this page took to read: describe your project in one sentence and go.
If our reception AI already works like this, imagine the software it builds for your business.
It's the same AI agent that works on our projects. Anonymous, no sign-up — it only asks for your contact when it makes sense, during the conversation. And every message pings my WhatsApp directly: a human replies after.
Prefer an old-fashioned form? Send a note — two fields and done.