Donizeti Ferreira
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About

The one who answers is the one who writes the code.

Donizeti Ferreira, software engineer and founder of D7BOTS

A software engineer for over ten years, and before that responsible for real operations. That's why keeping what already exists alive isn't a promise here.

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The short version

I'm Donizeti Ferreira. I've worked with software since 2016, and most of that time wasn't only writing code: I went through operations, through managing a team, and through answering for what was live at three in the morning. It's a less common path than it sounds, and it's what explains what I sell today.

D7BOTS is the company that signs the contract. It isn't an agency with a team behind it: it's one person, with enough process and tooling to handle the volume that used to need a small team. Whoever answers the first message is the one who writes the code and the one who gets woken up when something falls over.

What I don't try to hide: I don't take many contracts at once, I don't sell 24-hour on-call, and I say when a problem isn't worth solving with software. Saying no is part of the service — it's what's left of the value once the easy part became automatic.

Before working for myself

  • Linx (Stone Co)Director of Operations & Software Engineer2020 — 2023
  • NeemoCOO & Full Stack Developer2016 — 2020

These are formal positions, verifiable on the professional profile. No contract client is named here: none agreed to be a showcase.

Proof

Client reviews, on the platformHERO4.81across 22 client reviews
Projects delivered
20
Violations
0
Clients who came back
42026-10-04
IT rank in Brazil
#196
Check the profileChecked on 2026-10-06

github.com/donizetiferr

Consistency

271 of 365 dayswith code shipped, over the last 12 months

20,033 contributions in the past year — most of them in private client repositories, which is where contract work happens.Check it on GitHub

Measured on 2026-10-04

If you got this far, we've probably already spoken.

This page exists for the check people do before deciding. If something is still missing, asking directly gets you an answer faster.

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Portrait of Donizeti Ferreira
Donizeti FerreiraThe one who answers and writes the code