Rafael
Rabelo.
AI Automation Engineer·founder of
AI agents, platforms and products — in production.
- 7+
- B2B clients served
- 20+
- Accounts onboarded
- 4
- In-house products
- C2
- English (EF SET)
02 About
I find the real pain in an operation and build the system that solves it — agent, platform or product — measured in numbers, delivered as promised.
- Based in
- Brazil · remote
- Focus
- AI agents, automation and systems
- Languages
- Native Portuguese · English C2
- Education
- Software Engineering · through 2027
- Company
- deciban — since 2025
- Core tools
- n8n · Claude · Next.js · Supabase
03 Path
From a sales counter to systems in production
B2B sales
Counter and business accounts in tools and construction retail: quotes, follow-up and the online channel next to the store. This is where the qualification criteria my agents use today come from.
04 Selected work
What I've built — and am still building
The pocket translator that lives next to your cursor
Inglês → Portuguêsentregar vale mais que perfeito, sempre.
Inglês → Portuguêsentregar vale mais que perfeito, sempre.
A Windows background app: select text in any program and pause, and the translation, the converted currency and a shortcut to search or ask the AI appear. Selection is read through UI Automation in ~20 ms, with a fallback that leaves the clipboard untouched. Closed beta with site, trailer, invites and auto-update.
- ~20ms
- Selection read
- 42MB
- Idle (was 465)
Seleçãoqualquer appUI Automation~20 msPlano BCtrl+InsertTradução+ moedaIAexplicar · responderIlhajunto ao cursorRustTauri 2UI AutomationNext.jsSupabaseOpenAIuai-beta.vercel.appOne selfie returns every photo you appear in
0,53313 rostos
é você
0,53313 rostos
é você
Face-recognition search over an event archive: face detection and embeddings on ONNX Runtime (GPU), similarity in pgvector with an HNSW index, and a PWA where a guest takes a selfie and downloads a ZIP. The selfie is never stored and consent comes before the scan. Public demo using the visitor's own photos.
- 3.995
- Photos indexed
- 15.681
- Faces
- <1s
- Search
Acervo3.995 fotosDetecçãoONNX · GPUEmbeddings15.681 rostospgvectorHNSWSelfienão armazenadaZIP< 1 sPythonONNX Runtime (GPU)pgvector · HNSWPWAVercelache-suas-fotos.vercel.app/demoNotes that stick on top of your computer
Ligar p/ fornecedoraté 15h · pedir prazo
Ideias do lançamento• vídeo de 30 s • convite por código
⏰ Reunião 16:30a nota salta na hora
Ligar p/ fornecedoraté 15h · pedir prazo
Ideias do lançamento• vídeo de 30 s • convite por código
⏰ Reunião 16:30a nota salta na hora
A notes board that runs in the background: it opens from a shortcut or a floating dot, and any note can be pinned loose on screen, above every window. Auto-detected formatting, password-protected notes encrypted by Windows, reminders that make a note pop up on time, and quick capture from the shortcut.
Atalhoou ponto flutuanteCapturarápidaNotaformato automáticoCofreDPAPIFixarpor cima de tudoLembretesalta na telaTauri 2RustTypeScriptViteDPAPIPersonal project — no public link
A 100% local password vault that became the operations hub
⌕ buscar no cofreggithub.comrafael@…••••••••••vvercel.comdeploy@…••••••••••ssupabase.comops@…••••••••••bbancoconta PJ••••••••••nn8nadmin••••••••••⌕ buscar no cofreggithub.comrafael@…••••••••••vvercel.comdeploy@…••••••••••ssupabase.comops@…••••••••••bbancoconta PJ••••••••••nn8nadmin••••••••••A password manager that never leaves the machine: AES-256-GCM, a key derived from the master password and nothing in the cloud. It grew into a personal hub: clients, tasks, finance and a personal agent, with a credentials vault isolated per client. A personal project with no public link — the interface speaks for it.
Senha mestranunca salvaDerivaçãochaveAES-256-GCMpor itemSQLitelocalClientescofre isoladoNext.js 16React 19better-sqlite3AES-256-GCMTailwind v4Personal project — no public link
05 AI agents
Talk to a real agent
Beyond automations and platforms, I build agents. This one is waiting for you — write as if you were a customer.
deciban Agent
online · replies in seconds
06 Skills & tools
What I master — and how I use it
Point at a skill to see how it shows up in the work
07 · Where the holes line up, there is evidence.
Let's find yours.
Recruiter or client — pick where to start.