I build products end to end: the client app, the API, the database and the infrastructure it ships on. My own product, MeuHub, is live; I designed and programmed assistive games for autistic children and tested them with real users; and I build the platform that tracks the State of Alagoas's public investment.
More on these projects
MeuHub · built solo over ~4 months. A link-in-bio page for people who sell on Instagram and WhatsApp: a storefront where customers pick size, flavor or variation and the order arrives ready-made in the seller's WhatsApp. Cookie-less click stats with map analytics, themes, a QR code for every profile, a genuinely free plan plus subscription billing, and an MCP server that lets AI assistants manage a page. React, Express, PostgreSQL, Docker, zero-downtime blue-green deploys.
Assistive games · CNPq research fellowship, IFAL × AMA-AL autism association, 2023–2026.
- TEAGRAM: Tangram-based game that teaches early math skills to autistic children, with structured TEACCH-style tasks and user-centered design. React Native/Expo.
- MEMOAUT: memory game, tested with 9 autistic participants (support levels 2–3) with educators mediating; 94.1% favorable evaluations.
- AUTMoney: money-skills serious game, 10 shops and 40 levels, with in-game telemetry and a KPI dashboard. Tested with 7 participants and 3 therapists: 91% of levels completed, 90.5% aggregate accuracy. Defold/Lua.
- How they were built: requirements gathered with users who can't always verbalize their needs, telemetry instrumented from day one, design decisions driven by the collected data.
Papers: SBIE 2025 · SBGames 2025. TEAGRAM was also my undergraduate thesis, alongside a systematic review of 26 studies on evaluating educational games for autism.
Delivery platform · F2J Soluções, 2025–2026. React web app, Next.js API, Electron desktop printing terminal, Oracle database, RabbitMQ messaging, Docker on Oracle Cloud (OCI), automated tests, payment-gateway and iFood integrations, and an AI customer-service agent on WhatsApp (WAHA API). I built nearly all of it, with help from colleagues, over ~8 months and left a working, tested, sellable version.
Escavador de Preços · personal. A price-tracker PWA that scrapes dozens of Brazilian online stores, matches the same product across retailers and alerts only on genuine price drops. Django, Playwright, React, web push.
try it live: material_estudos_ifal ↗ · play: jogo_de_carro ↗
Full stack, by layer
| Layer | Tools |
|---|---|
| Languages | TypeScript, JavaScript, Python, SQL, PL/SQL, Bash, Java, Lua, PHP |
| Frontend | React, Next.js, Vite, TanStack Query & Router, Tailwind CSS, shadcn/ui, Recharts, Leaflet |
| Mobile, desktop, games | React Native, Expo, NativeWind, Electron, Defold |
| Backend | Node.js, NestJS, Express, Django, FastAPI, Flask, Laravel, Zod |
| Data | PostgreSQL, Oracle, MongoDB, Redis, SQLite, Prisma, Drizzle, RabbitMQ |
| Identity | Keycloak, OpenID Connect / OAuth 2.0, JWT |
| Platform | Docker, Kubernetes (k3s), Kustomize, Helm, GitHub Actions, Nginx, Cloudflare, Oracle Cloud |
| Observability | Prometheus, Grafana, Loki |
| Testing | Vitest, Jest, Playwright, Testing Library, Supertest, pytest |
| AI / ML | LLM APIs (OpenAI, Groq, Gemini, DeepSeek), a WhatsApp AI agent, MCP, PyTorch, OpenCV |
How I ship
- Declarative Kubernetes deploys: Kustomize overlays applied from CI, Helm add-ons, SHA-pinned images, so a rollback is one command.
- Zero-downtime deploys: blue-green behind Nginx, with health checks and automatic rollback.
- CI gates: typecheck, unit tests and integration tests against a real PostgreSQL before production.
- OIDC single sign-on: backend-for-frontend (PKCE, server-side tokens, back-channel logout) and Keycloak realms as code.
- Self-hosted observability: Prometheus, Grafana and Loki.
- Hardened container images.
- User-validated software: telemetry from day one and tests with real users.
On the state platform I own the layer underneath the app: Keycloak SSO, a self-hosted k3s cluster with CI/CD, blue-green deploys, and Prometheus, Grafana and Loki monitoring.
Information Systems at IFAL (Federal Institute of Alagoas), graduating Dec 2026 · English: EF SET C2 Proficient · every image here is an SVG built by one script.