I build the web systems businesses run on.

Sândalo Plasperola

A wholesale and retail business that needed to sell online. I built the full e-commerce platform (5,000+ products, payments, order management), live and taking orders today.

Next.js · React · Ruby on Rails · PostgreSQL

SC Negócios

A real estate agency that needed leads, not just listings. I built a property platform with advanced search, favorites, and a financing calculator that turns visitors into contacts. Live today.

Next.js · TypeScript · TailwindCSS · React Query

Fazenda dos Sonhos

My own product: a multiplayer online game I built from scratch in C++, with its own economy. It reached 8,500 signups while it was live. It is on hold until I can cover the server costs.

C++ · WebAssembly · Multiplayer

Worked on LakeGraph, LakeFusion's Databricks-native graph analytics platform: full stack work, from the graph exploration UI to the services behind it. Remote.

Built internal engineering tooling used by development teams.

Cut API response times on client Rails products by fixing N+1 queries and adding missing DB indexes, and migrated legacy jQuery dashboards to React so the product could keep evolving.

Made the organization's dashboard faster through query optimization and page caching, and mentored junior devs on Rails and React, raising the bar of the code the team shipped.

Rebuilt a legacy jQuery portal in React for thousands of active users, sped up data-heavy charts with React Query caching and prefetching, and introduced TypeScript on critical APIs to catch bugs before production.