Senior software engineer. 10+ years shipping software, 6+ deep in React/TypeScript. Currently at Coinbase (via Kake) building marketing infrastructure with React, Golang, and data pipelines.

Outside of work, I build on-chain. Solana and EVM.

SafeNudge — Group accountability savings protocol on Solana. Brazilian MOAIs and caixinhas, but with smart contract enforcement instead of WhatsApp guilt. Six-instruction Anchor program with PDA-owned USDC vaults, React 19 + @solana/wallet-adapter frontend, i18n for PT-BR and EN. Colosseum Spring 2026 entry.

BaseVault — Yield-bearing commitment savings protocol on Base. Lock ETH with a time lock, earn Aave v3 yield while locked, full withdrawal after expiry. Solidity, Foundry, fuzz tests, 100% coverage. Frontend on wagmi v2, viem v2, RainbowKit, deployed on Vercel.

Agentic AI workflows. Claude Code, MCP servers, automating my own pipelines. Multiplying output is the new senior engineer skill.

Frontend: React, TypeScript, Next.js, TanStack Query, Zustand, Tailwind, wagmi/viem, @solana/wallet-adapter

Backend: Golang, Node.js, PostgreSQL, MongoDB, gRPC, REST

On-chain: Solidity, Foundry, Anchor (Rust), Solana web3.js

Infra: AWS, Docker, Vercel, Railway, Sentry, GitHub Actions

Coinbase (via Kake) · Riot Games (via X-Team) · Originate (via X-Team) · PagSeguro · Nibo

LinkedIn · X · devgiroux.com

Always up for a chat with people building small, ambitious products.