Gustavo Saiani

Metabase

Delivered core features of the open-source BI platform used by 90,000+ organizations including enterprise and government clients. Improved application performance as the company grew revenues ten-fold. Revitalized public-facing projects through SEO and LLM optimization, contributing to growth from 30k to 90k customers.

Spoke

Led development of a greenfield React application enabling real-time package tracking, now supporting over 1 billion parcel deliveries annually. Elevated code coverage from 0% to 70%, reducing bugs by 70%. Assembled and managed a team of React developers.

Toptal

Helped drive over $200M in annual revenue building a Freelancer Profile app serving 7,000+ freelancers across 140+ countries. Built public-facing pages with SSR, achieving $4 per-visit revenues. Implemented A/B testing and personalization during 20% YoY company growth.

EmCasa

Designed and launched a real estate marketplace MVP using React and Elixir. Raised $1M in seed funding and facilitated the sale of dozens of properties in its first months of operation.

Sponda

sponda.capital

Financial indicators for Brazilian public companies, built for value investors.

Doing It

doingit.online

Minimalist task and time tracker. Type a task name and start the clock.

AI Engineering

github.com/gusaiani/ai-engineering

Project-based AI engineering curriculum. 13 modules from LLM API basics to multi-agent systems, built for portfolio over credentials.

Poema Investimentos

poe.ma

Value investment partnership. 395% cumulative returns from Jan 2017 to Mar 2026, outperforming the Brazilian stock index by 1.9x.

Swankdown

swankdown.gustavosaiani.com

Transforms Markdown into beautifully typeset reading pages with refined typography.

Art Portfolio

gustavosaiani.art.br

Paintings portfolio.