Product engineer · Brazil

I build products
that think.

Full-stack engineer combining product judgment, software architecture and AI to turn difficult problems into software people actually use.

Nathan / Agent
context aware
What kind of engineer is Nathan?
Analyzing shipped products, architecture decisions and product ownership…
scan_product_historydone
inspect_engineering_depthdone
infer_working_stylerunning
Ask about Nathan's work…
Laravel · TypeScript · React · Vue · React Native · Node.js · PostgreSQL · Redis · AWS · Docker · Product thinking · AI systems · Shipped to production · Laravel · TypeScript · React · Vue · React Native · Node.js · PostgreSQL · Redis · AWS · Docker · Product thinking · AI systems · Shipped to production ·
01 / Selected work

Not just interfaces.
Systems with consequences.

01 · Deskbee / Product Engineering

BeeCheck

A QR-based workplace check-in product designed and built from zero, solving physical-presence validation with rotating TOTP tokens and production-ready permissions.

LaravelVueTOTPMulti-tenant
View case study
DESKBEE / CHECK-IN

Scan.
Validate.
Enter.

ROTATING TOKEN · 00:18
02 · Independent Product

Eventtor

A vertical SaaS built end-to-end for inflatable-rental businesses: bookings, contracts, scheduling, finance, quotes and day-to-day operations.

ReactTypeScriptNode.jsProduct
View case study
Operations
EVENTS12
REVENUE18.4k
PENDING04
03 · Realtime / Mobile

Room Display

A production kiosk experience rebuilt around real-time availability, resilient Socket.io connections, Android-native behavior and deployment reliability.

React NativeSocket.ioAndroidRealtime
View case study

09:42
Tuesday

AtlasAvailable
OrionUntil 10:30
AuroraAvailable
JupiterUntil 11:00
02 / AI + Engineering

I don't use AI to look faster.
I use it to think deeper.

Local agents, tool calling, RAG, coding assistants and automation are becoming part of how I design systems — not decorations added after the product is built.

NATHAN/AGENT · knowledge context ML · local
Interactive session initialized.
I can navigate Nathan's work, experience and engineering context.
hint → type /help, /journey, /projects or ask with /ask
TAB autocomplete · ↑↓ history
nathan@portfolio:~$ ENTER
03 / Journey

Travel through
the system I became.

This is not a résumé timeline. Scroll forward through time: each stop changes the graph, carries context from the previous era and reveals how product, engineering and AI became one connected system.

Scroll to travel in time
2018 → 2022

Foundation

Faculdades QI · Analysis and Systems Development

Before the jobs, there was the foundation.

College started in 2018. By 2021, the focus became specific: learning to become a software developer and preparing to enter the industry.

Mar 2022 → Apr 2023

3035Tech

Front-end Developer · Campo Bom, RS

The first professional node.

Responsive interfaces from Figma, production work, and mentoring 20+ developers in the company training program.

2022 → Present

Eventtor

Founder · independent SaaS

Then a second thread started running in parallel.

Eventtor became a permanent product laboratory: engineering, UX, customers, pricing and production — built alongside every job that came after.

Apr 2023 → Jul 2023

Darkflix

Full-stack Developer · Remote

From interfaces to systems.

React 18, Zustand, Node.js and TypeScript, with payment-provider abstraction across PayPal and PagBank/PagSeguro.

Jun 2023 → Dec 2023

Eu Viajo Seguro

Full-stack Developer · Remote

Architecture became the feature.

Legacy Laravel persistence was reorganized into Service / Repository layers, unlocking V2.0 blocked by technical debt.

Feb 2024 → Jul 2024

Care Intelligence

Full-stack Developer · Porto Alegre, RS

AI became part of the system.

Realtime translation, healthcare safety algorithms, ReactFlow AI pipelines and semantic search with Vectara RAG + GPT-4.

Oct 2024 → Present

Deskbee

Full-stack & Mobile Developer · Porto Alegre, RS

The graph became larger — but also more connected.

Enterprise SaaS, Laravel 11, PHP 8.3, Vue, NestJS and React Native, frequently owned as a complete vertical slice from migration to production.

2018 → Now

The system now

Product thinking + Engineering depth + AI + Ownership

The roles changed. The system kept learning.

What started with education and focused study became a connected system across product, frontend, backend, architecture, AI, mobile and ownership.

EVENTTOR / parallel thread · 2022 → now
2018 → NOW Years later,
the graph looks different.
mentoring.signal / 20+ developers LIVE SYSTEM / South Summit / 0 incidents CRA → Vite / ~20k config lines removed 563+ commits · 80+ Jira · 400+ companies ownership: end-to-end
drag canvas to explore · scroll to refocus
TIME TRAVEL / 2018 → NOW 00 / 07
5+Products built from scratch
400+Companies on the platform I work on
FullBackend → frontend → production
AIAgents · Tools · RAG · Fine-tuning · Skills · MCP · Automation