Custom websites and software. Built to last.
Websites, online stores, internal tools, automations and AI agents for companies that are done with templates. The person who scopes your project is the person who writes the code.
Five services, one studio.
Every project comes with a fixed scope, an agreed deadline and the code in your name.
Websites and landing pages
A site that shows up on Google, loads fast on a phone and says plainly what your company does.
- Design made from scratch
- A design system so it can grow and still look like you
- A simple panel to edit it later
Online stores
Catalog, cart, payments and shipping working together, connected to whatever you already use for stock and invoicing.
- Checkout in a few screens
- Cards, Pix and local payment methods
- ERP and shipping carriers
Internal tools and dashboards
The spreadsheet that turned into a bottleneck becomes a real system, with logins, permissions and history.
- Records, workflows and approvals
- Reports you filter yourself
- Role-based access
Integrations and automation
Two systems that have never met start talking. APIs, webhooks and jobs that run on their own overnight.
- Documented REST APIs
- CRM, ERP and spreadsheets in sync
- An alert when something breaks
AI agents
Agents that read, answer and sort what comes in by email, WhatsApp, forms or documents. They plug into your systems, and a person reviews what matters.
- AI-assisted support and triage
- Document summaries and data extraction
- Agents that take action in your systems
Selected work.
Systems, websites and a design system we have shipped.
Who we have worked with
- Sintrauto
The person behind DVS.
DVS is Diego Vieira's studio. He started coding at 14, got his first job at 15, and has spent more than 15 years building distributed systems, bank integrations and the teams that keep them running.
He is the one you talk to about the proposal, and the one who writes the code. In recent years he has led teams and set architecture without leaving the keyboard.
Where he has worked
- QuintoAndar
- Almada Capital
- Tivita
- ATTA
- ProRadis
- epico.digital
- Universidade Santa Cecília
Architecture built to grow
Designed the technical foundation so the company could scale without a rewrite.
Features that brought in customers
Shipped what unlocked new deals and rebuilt critical modules.
Mortgage lending with major banks
Integrated Santander, Itaú and Bradesco, and split an old system into smaller services.
Software for clinics
Medical and dental systems, including a teleradiology platform.
Eight years of university systems
Portal, events, automated bank slips and the ERP integration.
B.Sc. in Information Systems from Universidade Santa Cecília. Outside the studio, he makes games at Blackstudio. Full background at diegovieira.dev
How we work
We take on a few projects at a time. The person who scopes your project is the person who writes the code. The repository is in your name from day one.
Call
Up to an hour, no strings attached, to understand the problem, who it's for and what already exists.
Proposal
Written scope, timeline and a fixed price. If something changes, we agree on it before moving on.
Design and code
Something new every week or two, on a link you can open and try.
Launch
We go live, hand over access and stay close for the first 30 days.
What every project gets
You own the code
The repository is in your name from day one. If you ever want another vendor, nothing ties you to us.
Fast on a phone
Tested on a bad connection and a cheap phone, because that is how many of your customers will see it.
Fixed price
You know the cost before we start. Extra hours only come up if the scope changes.
Accessible
Contrast, keyboard and screen reader support are part of the scope, at no extra cost.
Documented
A guide to how the system works and how to ship changes, for your team or whoever comes next.
Replies within 2 business days
Calls when they help, messages the rest of the time. A different time zone doesn't slow things down.
Questions people ask
What usually comes up in the first email. If yours isn't here, just ask.
How long does a project take?
It depends on the scope, which is why the timeline is written into the proposal next to the price, after a call of up to an hour. While we work, you get something new every week or two on a link you can try.
Is the price really fixed?
Yes. You know the cost before we start. If the scope changes along the way, we agree on it before moving on, and the call is yours.
Who owns the code?
You do. The repository is in your name from day one, along with a guide to how the system works and how to ship changes. If you ever want another vendor, nothing ties you to us.
What happens after launch?
We go live, hand over access and stay close for the first 30 days to fix whatever comes up.
Do you work with companies outside Brazil?
Yes. The studio is based in Brazil and works with companies at home and abroad, in English or Portuguese. Calls when they help, messages the rest of the time. A different time zone doesn't slow things down.
How do we start?
Send an email to contato@dvs.studio. Three lines are enough. We reply within two business days with questions or a time to talk.
Let's build what your business could become.
contato@dvs.studioIt helps a lot if your message covers:
- What the company does, and for whom.
- What you have today and what bothers you about it.
- Timeline and budget range, if you have one in mind.
Message sent.
You'll get a reply by email within two business days.
We reply within two business days. A three-line summary is plenty; we'll ask about the rest on a call.