01
Automix
Grupo AutomixAutomotive platform
2026
A car dealership, rebuilt as a digital product.
Next.js · TypeScript · React · Tailwind CSS
View project→- Software
- Product
- Experience
I design the interface, engineer the system behind it and stay for what ships.
Scroll to explore01Who I am
I started in IT support, fixing what other people's software broke. That's still how I build: from the operation up. Today I design, develop and own digital products: the interface, the system behind it, and the decisions in between.
- (a)Software developerWrites the code
- (b)Product ownerOwns the why
- (c)Creative developerCares how it feels
02What I build
Rarely just the screen. Usually the whole thing.
From the first question to the shipped version: scope, priorities, backlog, and the call on what not to build.
Seen in Automix
The part behind the screen. Multi-tenant platforms, APIs, data models and permissions that hold under real use.
Seen in Automix · Lar Batista · Solidarity List
React Native apps for people working on the floor, not at a desk: checklists, QR access, attendance.
Seen in Transire · Amazonas Inovare
Small tools that remove a manual step for good, so people can spend the time on something better.
Seen in PC Control Center · Material Custody
03Selected work
Products for clients and products of my own: a dealership, a ticketing platform, a donation network, room booking, a restaurant and the tools I run on my own machine.
See every project →Automix
Castteli
PassNow
PC Control Center
RoomFlow
PC Monitor
The Chef
Solidarity List
Lar Batista
Candidate Search
Carter
Aura ID
Operational Checklist
In the press · Transire · Manaus
ExpoPIM 4.0
At the Manaus Industrial Hub's fair, Transire presented Zire. Two articles quote me as the company's software developer, explaining what was on the stand.
“Ele une as duas coisas: o que o vendedor vê de um lado, o cliente vê do outro.”
- Agrofloresta AmazôniaRead the article (opens in a new tab)
- PIM AmazôniaRead the article (opens in a new tab)
Certificates · 5 issuers
The wall of study.
Twenty-three completed courses, from algorithms to DevSecOps, each with the original certificate.
- 23
- certificates
- 266
- hours of study
04Index
More, in brief.
- PedemaisDelivery appTypeScript2026 (opens GitHub in a new tab)
- Material CustodyEquipment checkout and return, with historyFront-end · Internal system
- Digital MenuMenus for restaurants, read on the phoneReact · Next.js
- Big JhonBarbershop websiteHTML · CSS · JavaScript2025 (opens GitHub in a new tab)
05Path
From the support desk to the product.
2023 to 2025
TecToy
IT apprentice Feb 2023 to Jan 2025
Technical support, systems maintenance and infrastructure. The first place I saw how a company really runs, and where software makes it faster or slower.
2023 to 2025
Transire
IT apprentice Feb 2023 to Jan 2025
Internal systems and my first production mobile work: operational checklists with React Native and Firebase.
2025 to now
Amazonas Inovare
Development assistant May 2025 to present
Front-end for web and mobile apps with React Native: interfaces, REST APIs and feature testing. Aura ID and Inovare Login came from here.
Now
Product & development
Owning products end to end Ongoing
Scoping, roadmap and build on products like the Automix platform, turning an idea into a system people use every day.
06Toolkit
The tools, not the point.
What I reach for today, arranged by the layer of the product it serves.
Currently exploring: Go, and more 3D on the web.
- Interface: HTML, CSS, JavaScript, TypeScript, React, Next.js, Tailwind CSS, Vite, GSAP, WebGL
- Mobile: React Native, Expo Router
- Backend: Node.js, NestJS, Express, REST APIs
- Data: PostgreSQL, Prisma, MongoDB, Firebase
- Delivery: Git, GitHub, Vercel, Docker, Linux
07About
Design is how it feels. Engineering is whether it holds. Product is why it exists.
I work on all three, usually at the same time.
I'm Renato, a developer from Manaus, in the middle of the Amazon. I came to software through IT support: two years at TecToy and Transire, learning how companies actually run. Then I moved into development at Amazonas Inovare, building web and mobile products.
I like the problems where the interface and the system have to be solved together: where a good screen is useless without the right data model, and the right data model is wasted behind a confusing screen. That's where being a developer and a product owner at once stops being two jobs and becomes one.
- 01
Start from the operation
Years in IT support taught me to watch how the work actually happens before drawing a single screen.
- 02
Ship small, ship real
A working version in someone's hands beats a perfect plan in a document.
- 03
Details are the product
Loading states, empty states, the second tap. That's where trust is built, or lost.
- 04
Own it after launch
Shipping is the midpoint. I stay for the fixes, the feedback and the next version.
Every product on this page started the same way: