vertex-api
NestJS + Fastify backend for samuelsantana.dev — Drizzle/Postgres, JWT auth via OAuth Token Callback Pattern, rate-limited REST API.
Senior Full Stack Engineer | TypeScript, Node.js, React & Angular
NestJS + Fastify backend for samuelsantana.dev — Drizzle/Postgres, JWT auth via OAuth Token Callback Pattern, rate-limited REST API.
Next.js 16 frontend for samuelsantana.dev — a technical blog showcasing server-first architecture, sub-path i18n, and secure cross-domain OAuth.
Multi-tenant SaaS front-end with RBAC-driven dashboards and white-label theming. React 19 + Rsbuild + TanStack Router/Query, 100% unit coverage + Playwright e2e.
Multi-tenant SaaS API with tenant-scoped data isolation, httpOnly JWT auth and three-tier RBAC. Fastify 5 + Prisma 7 + PostgreSQL, 100% test coverage.
A lightweight, declarative bridge between RxJS asynchronous flows and modern UI state primitives (Signals, Hooks, and Refs). Zero extra dependencies.