About me
I'm a developer focused on backend, automation and the integration between hardware and software. I specialize in building systems, APIs and web platforms for access control and solutions connected to physical devices.
My main working stack includes:
Beyond the code, I get hands-on with the hardware and the architecture. I have experience building secure admin panels and working with:
- NFC/RFID technology integration and serial communication
- IoT systems and connection with physical devices
- Integration with biometrics and security APIs (Hikvision and ZKTeco)
- Backend architecture, security and authentication
I also manage the operational infrastructure. I build, configure and administer Linux servers, from self-hosted home machines to dedicated servers and enterprise VPS.
In this area, I handle the full cycle:
- VPS and dedicated server management
- Dockerizing and deploying APIs and web apps
- Networking, Nginx as reverse proxy, domains, SSL and Cloudflare
- Hardening, security and administration of Linux services
- Infrastructure automation and monitoring
Projects
Skilled ERP
Full Stack · SecurityComplete ERP for payroll, employees and inventory. Async FastAPI backend and a React/Vite SPA, built for high performance without blocking the app.
Stack
Asistencia y Nómina Hikvision
IoTSystem that takes clock-ins from the Hikvision reader and turns them into payroll automatically, with no manual work.
Stack
Control de Acceso Físico
Hardware · Full StackAccess control for a school: a custom Arduino PCB, a ZKTeco card reader and a web panel to manage students.
Stack
Biblioteca Maxipet
Migration · Spring BootMigrated a corporate system from Flask to Spring Boot 3 (Java 17) with zero downtime and the database intact.
Stack
Ya lávame
Desktop · Point of saleTouch point-of-sale (kiosk mode) for a car wash, running in production. Service charging, thermal-printer tickets, cash count and management of prices and workers.
Stack
Daniel Nvcd · @danielnvcd · Puebla, Mexico