System Status
> SYSTEM STATUS: ONLINE
> OPERATOR: Kayo "Kinho" Souza
> ROLE: Independent | Contract Tech Lead at Experity | Founder of Niten
> LOCATION: Vitoria, Brazil
> UPTIME: ~8 years in production
I work independently and am the founder of Niten. I work with AI for businesses and software. At Experity (USA), I work as a contract Tech Lead on CareAgent, an AI agent for telehealth. Yooga is my former employer, where I worked on the migration from Itaú PIX to Pix Gov 2.0, with gradual rollout and rollback. I also build my own products: Brasa Cargas and TOPO Contábil, the latter with a partner.
// YOOGA
POS deployed nationwide
Defense grid established
Hardware integration online
Offline-first real-time sync
// QUINTOANDAR
Efficiency vector optimized
User satisfaction amplified
Manual protocols purged
User autonomy achieved
// TOPO CONTABIL
Clean Architecture at scale
Domain logic fully mapped
Enterprise state management
--- DEPLOYMENT HISTORY ---
POS and payment infrastructure for 1000+ restaurant clients. Embedded hardware integration. Offline-first real-time sync.
Logistics optimization for Brazil's largest proptech.
Enterprise accounting platform. Clean Architecture at scale.
Arsenal
- Backend:NestJS, Node.js, TypeScript
- Frontend:Next.js 16, React 19, Tailwind v4
- Database:PostgreSQL, Prisma ORM
- Architecture:Clean Architecture, DDD, State Machines
- DevOps:Docker, CI/CD, Vitest, Playwright E2E, Android Instrumented Tests
- AI Tooling:Claude Code (daily driver), LLM Integration
User Data
- Downtime: Anime, League of Legends
- Training: Competitive Programming
- Status: Building enterprise systems and open protocols
FOLLOW THE SIGNAL
I write about enterprise architecture, AI tooling, and production war stories. No fluff.
OPEN CHANNEL
Building complex systems? Need someone who ships 42-module monoliths and processes real payments? Let's talk.
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