Leonardo Fissicaro de Mello_
Software engineer · Belo Horizonte, BR
Get in touch →$ about
Software engineer based in Belo Horizonte, Brazil. I build pragmatic web platforms — from data infrastructure to AI-powered tooling — and care a lot about craft, performance, and how a product actually feels in the hand.
$ work
- GoodStream 2024 — presentCo-founder & Software Engineer
Social-network engine for creators and brands — live streaming, short-form content, and monetization on a custom domain. Full-stack engineering and infra.
- Me4U 2024 — 2026Software Engineer
AI-companion platform that turns creators and celebrities into chat-ready AI versions of themselves. Full-stack engineering on the consumer product.
- Serasa Experian 2023 — 2024Software Engineer
Brazil's largest credit bureau (since 1968, part of Experian) — credit scoring, identity, and fraud-prevention products at national scale.
- Agrosatélite 2022 — 2023Software Engineer
Geospatial intelligence built on satellite imagery — monitoring crops, supply chains, and zero-deforestation commitments across Brazilian agribusiness.
- Liva 2022 — 2022Software Engineer
Real-estate marketplace for buying and renting homes in Brazil — full-stack platform engineering across listings, search, and the agent experience.
$ stack
Frontend
- TypeScript
- SvelteKit
- Svelte 5
- Tailwind v4
Backend
- Hono
- Drizzle
- Cloudflare Workers
Infra
- Cloudflare
- Vite
- pnpm/turbo
- Biome
AI/Data
- Braintrust
- LLM evals
- Prompt design