Selected products and technical projects I’ve built outside work.
Some projects I currently care about: a Brazilian SaaS I’ve been operating for over a decade, and a couple of side projects I tinker with in the evenings.
Chá Online
A Brazilian SaaS platform for online gift registries: baby showers, housewarmings, and more. Hosts create a digital gift list, guests “buy” virtual gifts, and hosts receive the money in their bank account, instead of receiving physical gifts. Running for 10+ years and used by 145k+ families. I built and operate the product end to end, covering product, frontend, backend, infrastructure, payments, and fraud prevention.
chaonline.com.br
Petsense
A pet health journal for tracking symptoms, vet visits, and daily observations over time. All organized into episodes so recurring problems are easier to follow. AI summaries help surface patterns in the history and prepare for vet appointments, without making diagnoses. A personal side project I’m building end to end: product, frontend, backend, and infrastructure.
petsense.app.br
Fire Terminal
A private portfolio and trading journal application I built to explore financial tracking, automation, exchange integrations, and event-driven backend architecture. It combines portfolio snapshots, trade tracking, and price-triggered workflows in one personal tool.
private