Senior Full-Stack & AI Engineer with 7+ years building production systems in TypeScript and Node.js, owning features end to end across React/Next.js, Node backends and PostgreSQL.
I design real-time, event-driven architectures and model complex domains like checkout, payments and fulfillment as type-safe, observable state machines.
I bring LLMs into production where they earn their place, and work async across remote, globally distributed teams.
Projects I'm proud to have shipped.
AI Agent · WhatsAppPadelFlow
An AI agent living inside a padel club's WhatsApp that answers questions, sends booking links and coaches players. No app, no integration, no training; a web dashboard tracks bookings, FAQs and voice notes.
Forecast · Cold Cast
Productionized an AI pipeline turning unstructured web data into typed, scored business intelligence, replacing a fully manual prospecting workflow. Deterministic extraction plus an LLM review-and-correct pass, all client-side.
Collector Crypt · Incursion
Stateful order-management & fulfillment (Incursion) bridging digital and physical goods, with the print-to-ship lifecycle modeled as deterministic state machines. Unified Solana + Ethereum checkout; payment polling replaced by signed webhooks.
GameFi · TelegramLadder Labs · Sugar Quest
High-concurrency Telegram Mini-App that reached 23k+ active users and won the Sonic Mobius Hackathon. A centralized 8 Hz tick cut CPU on low-end devices; instant on-chain payouts via Solana Actions in Go.
Web3 · AffiliateLadder Labs · Buddy.Link
A fully on-chain affiliate network on Solana: unified creator profile, shareable Blinks and instant payout per conversion.
Autoestima-se
Institutional site for a national NGO democratizing mental-health care for women and young people in social vulnerability: donation funnel, transparency pages and a trilingual (PT/EN/ES) experience.
Healthtech · SaaSBem-Te-Vi
An integrated operating system for a multidisciplinary health clinic, replacing three disconnected tools. End-to-end NFSe issuance with a self-healing invoice queue (per-line backoff, distributed locks) resilient to a degraded government API.
AI · Local-firstRadar
Finds and qualifies leads across Twitter/X, LinkedIn and Google. MV3 extensions passively intercept traffic; Express services own the data behind a single SQLite owner; a Next.js dashboard runs the human-in-the-loop. A 12-signal heuristic ranks before LLM triage.
DeFi · Real-timeBlue Giant
Real-time asset & price streaming engine with sub-second latency, scaling to thousands of concurrent connections over Server-Sent Events. Cut API latency ~60% via Redis read-through caching and targeted query optimization.
NFT-Fi · AnalyticsWolf Capital
Ecosystem of interconnected Node services processing 10k+ monthly transactions, with a high-performance analytics dashboard surfacing LTV ratios, volume and liquidation alerts in real time.
GameFi · Web3Degen Legends
NFT gaming platform pairing an in-app breeding constructor with a merch marketplace. Automated, event-driven reward distribution and a social-verification pipeline removed manual moderation from the reward flow.
Mallow Art
Curated NFT art marketplace on Solana: limited editions, live artwork drops and burn mechanics behind a mobile-first storefront. Delivered with an embedded engineering team through Cold Brew Digital.
Align
Solana-native DAO governance with multisig treasuries, NFT/token-weighted voting and on-chain hackathons; NestJS + GraphQL backend on the Helium SDKs, Sign-In-With-Solana frontend.
Pump Science
Decentralized-science platform for funding and tokenizing research, built embedded into the client's team during a Solana hackathon.
Azevedo Store
Counter-Strike 2 skins store with float/wear filters, persistent cart, authentication and a complete admin panel.
Pulse Bar
High-fidelity animated site for an AI app/game generator, with hand-built motion, popup transitions computed from getBoundingClientRect and interactive cursor demos.
Front-end and a scalable Node API for NFT DAO management on Solana, with wallet-adapter social login and a Discord bot for community ops.
14+ NFT collections for entrepreneurs and artists via Metaplex Candy Machine v2: whitelisting, secure wallet integration and Arweave/IPFS storage.
Terminal-only personal assistant on Claude Code driving Gmail, Calendar, Drive and an Obsidian vault, with defense-in-depth prompt-injection hooks that gate sensitive tools after any external read.
~20 MB single-binary Go music bot that delegates audio decoding and voice streaming to a Lavalink JVM over REST/WS; DAVE/E2EE compliant, self-hosted on a homelab with its own CI runner.
Ansible IaC for a two-machine homelab; a self-hosted GitHub Actions runner applies the playbook over SSH with ephemeral secrets and zero inbound exposure.
Fast, SEO-ready institutional sites, landing pages and lead funnels, with polished motion and performance built in from the first line of code.
Speech therapist in Jaraguá do Sul, with a playful, parent-friendly brand funneling visitors straight to WhatsApp.
Currently open to new projects: full-time, direct contract, consulting or through Cold Brew Digital. Always happy to chat.
