Thiago Menzinger Mechatronics Engineer in Campo Grande, Brazil

Automation and AI agents for businesses in Campo GrandeDo less of what repeats. Earn more from what matters.

Custom systems, with or without AI, and support that answers right away — even after hours.

Talk to ThiagoSee real cases

3h → min

Time to build a quote at iConnect

9 s

WhatsApp response time at Oliveira & Godoi law firm

+600 h

Freed up in quotes and contracts in 8 months

41%

Of the firm's contacts arrive after hours — and get answered right away

Real cases, with numbers straight from the database

No generic testimonials. These are systems running today in Campo Grande — and wherever there's a number, it comes straight from the production database.

The screens show fictional demo data. No client data appears here.

iConnect — Security systems and automation integrator

Quotes that took a whole morning now take minutes.

The operation ran on spreadsheets, notebooks and WhatsApp groups. I replaced it all with a system built around how they work: the technician quotes at the client's home, the client approves via link and the contract is generated on its own.

to build a quote
2–3 h → min
to build a quote
from client approval to a ready contract
~2 min
from client approval to a ready contract
of work freed up in 8 months
+600 h
of work freed up in 8 months
of work orders approved with no rework
98%
of work orders approved with no rework

What I built: Sales, contracts, field jobs with a technician app, QR-tagged inventory, purchasing, finance, invoicing, HR and fleet — in a single system. Their website is mine too.

In production since Feb 2026See the website

Oliveira & Godoi Advocacia — Law firm

Support that replies in 9 seconds — even at 3 a.m.

An AI assistant on WhatsApp and Instagram welcomes the contact, understands the case, receives the consultation payment receipt and sends a link to pick a time. The meeting lands on the lawyer's calendar with a Google Meet link created automatically.

median WhatsApp response time
9 s
median WhatsApp response time
of messages sent without anyone typing
85%
of messages sent without anyone typing
consultations booked by the clients themselves
162
consultations booked by the clients themselves
replies blocked by the AI for sensitive tone and handed to a person
291
replies blocked by the AI for sensitive tone and handed to a person

What I built: Besides the support flow and the website, a full ERP: court deadlines, documents, contracts with e-signature, finance, commissions and an audit trail. The support AI costs about R$ 9 a month.

In production since Jul 2026See the website

Terra Verde Engenharia — Environmental engineering consultancy

A website that brings leads and a dashboard that keeps them warm.

The website presents the services and captures contacts. In the dashboard, each lead lands in a pipeline synced with the ClickUp the team already used, with the WhatsApp conversation right on the lead's page. And the photos from each field campaign reach the client in their own gallery, via link or QR code.

lead pipeline synced with the tool the team already used
ClickUp
lead pipeline synced with the tool the team already used
lead conversation open on the lead's page, no tab switching
WhatsApp
lead conversation open on the lead's page, no tab switching
photo gallery of each campaign delivered to the client
QR code
photo gallery of each campaign delivered to the client
its own editor: the team publishes without depending on me
Blog
its own editor: the team publishes without depending on me

What I built: Website with service pages, cases, FAQ and blog; dashboard with a post editor, client galleries with QR codes and a lead pipeline integrated with ClickUp and WhatsApp.

See the website

Encontro com Deus — Retreat registrations for Lagoinha Campo Grande church

From announcement to payment, all on the phone — no spreadsheets.

A website that announces the retreat with a live count of open spots, registers people in 4 steps and generates the PIX payment with the exact amount. People upload the receipt right there and track their own registration; the team checks it and confirms the spot from the dashboard.

from form to payment, with the right amount
4 steps
from form to payment, with the right amount
of people come from a phone — so the dashboard was built for it too
90%
of people come from a phone — so the dashboard was built for it too
count of open spots on the announcement page
Live
count of open spots on the announcement page
to export the event-day list
1 click
to export the event-day list

What I built: Announcement page, registration form, PIX payment in full or in installments, a personal registration area and a dashboard to check receipts and get the event-day list. Receipts are kept in private storage — they're financial documents.

Live since Sep 2026See the website

And others live

Websites, systems and automations that don't fit here — dozens of them.

Maranatha Suites — Wi-Fi do hotelLagoinha Campo Grande — GestãoDr. Matheus Sarmento — Dentista 24 horasCarla Machado — PodologiaJonas Vilela — ComunicadorLagoinha Campo Grande — Palavra DeclaradaLagoinha Campo Grande — Flechas ConferenceDr. Lucas FigueiredoLagoinha Campo Grande — Setembro AmareloDra. Aline CamargoDr. Kleber Sandim
Maranatha Suites — Wi-Fi do hotelLagoinha Campo Grande — GestãoDr. Matheus Sarmento — Dentista 24 horasCarla Machado — PodologiaJonas Vilela — ComunicadorLagoinha Campo Grande — Palavra DeclaradaLagoinha Campo Grande — Flechas ConferenceDr. Lucas FigueiredoLagoinha Campo Grande — Setembro AmareloDra. Aline CamargoDr. Kleber Sandim

Adding up the systems I built

in sales and contracts closed inside the systems
R$ 2M+
in sales and contracts closed inside the systems
in payments reconciled in finance
R$ 1.8M+
in payments reconciled in finance
in paid consultations sold by automated WhatsApp support
~R$ 40k
in paid consultations sold by automated WhatsApp support

Rounded figures, summed across clients and measured in production databases. They show what went through the systems, not a promise of results. Source: each system's production database, queried in Sep 2026.

How much time is leaking?

Drag to the hours per week that go into repetitive work: re-typing orders, building quotes by hand, answering the same question on WhatsApp.

288

hours a year — ≈ 36 eight-hour workdays

I want those hours back

Simple math: hours × 48 weeks. Not every hour can be won back — finding out which ones is what the diagnosis is for.

What I solve for your business

The bottlenecks I see most often — and what usually solves each one.

  • AI agent on WhatsApp and Instagram

    Replies in seconds, answers questions, qualifies the lead, receives receipts and books appointments — day, night and weekends. Anything that needs judgment goes to a person on your team.

  • Process automation

    Quotes, contracts, invoices, reminders and reports going out on their own, with nobody re-typing the same information in three places.

  • Custom management system and ERP

    Sales, operations, inventory, finance and invoicing in one place, designed around your process — not your process bending to a generic system.

  • Systems and hardware integration

    I get your tools talking and connect the physical to the digital: QR tags, thermal printers, guest Wi-Fi sign-up, sensors and automation.

  • AI assistant for your team

    An AI that knows your documents, contracts and systems and answers your team — in the cloud, on your server or even offline.

  • Websites, Google and ads

    Fast mobile websites, Google Business Profile and Google and Meta campaigns. For clinics and practices, more than a thousand patients came in this way.

My own product · in testing

Phantoms, an AI assistant for business that learns from you

You ask the way you'd ask a colleague, and it gets it done and keeps track of what it did. Try it right here: that's a Phantom answering for me (in Portuguese) — tell it what's slowing your business down.

  • Thinks before acting: a second AI helps pick the best path instead of answering on autopilot
  • Has memory: it learns how you work and what you need, so you don't repeat yourself
  • Learns a task when you teach it and does it on its own next time
Check out Phantoms

How I work

I start by truly understanding your business. Sometimes the answer is to build from scratch; sometimes it's just adjusting the route or unblocking a bottleneck and moving on. We decide together what delivers most.

  1. Before

    Diagnosis first

    Not every problem needs a system. I look at how the work really flows and find where the time is leaking.

  2. During

    No surprises

    Price agreed before we start. Full transparency — you follow every step and know exactly what you're getting.

  3. After

    With or without me later

    I build things to last. If the best move is to unblock you and let you run solo, great: the goal is your result, not my permanence.

Thiago MenzingerIBM AI Developer

Thiago Menzinger

Eng. Mecatrônico / Especialista em ERP / IBM AI Developer / CREA 71205-MS

I'm a Mechatronics Engineer, ERP specialist and IBM AI Developer certified, with 7+ years across automation, IT infrastructure and software development. I work out of an office on Av. Afonso Pena in Campo Grande. You talk straight to me — the person who diagnoses is the person who builds, no salesperson in between.

LinkedInGitHub

Frequently asked questions

What businesses ask before automating or bringing AI into their operation.

What's stealing your time today?

If something is stealing your time every day, it can probably be solved. No strings attached — tell me what gets stuck in your day and we'll find the best path.

Email
Email
contato@thomenz.me