Builder • Backend • IoT • Linux Enthusiast

Hi, I'm Denny Mario.
I build digital systems with code.

Passionate about backend engineering, IoT systems, Linux servers, and modern web technologies. Currently exploring Flask, Docker, Express.js, MQTT, and scalable server architecture while building projects through Coreva.

About Me

I'm a technology enthusiast focused on backend development, IoT engineering, and Linux server ecosystems. I enjoy building systems that connect hardware and software together — from ESP32 monitoring systems to scalable Flask APIs deployed on VPS infrastructure.

IoT Engineering

Building smart systems using ESP32, sensors, MQTT, and mobile integrations.

Backend Development

Developing APIs and server-side systems using Flask, Express.js, and Docker.

Linux & VPS

Managing VPS deployments, nginx reverse proxy, SSH workflows, and containers.

Tech Stack

Technologies and tools I currently use for development and experimentation.

Python Flask Express.js MongoDB Docker Linux ESP32 MQTT React Native Bootstrap Git nginx

Featured Projects

A glimpse into projects and systems I'm currently building.

Smart Soil Monitoring System

Mobile-based IoT monitoring system for pakcoy plants using ESP32, MQTT, soil moisture sensors, and automated watering controls.

JWT Authentication System

Fullstack Express.js authentication system with MongoDB, JWT, Pug templating, and responsive Bootstrap UI.

Let's Build Something

Open for collaboration, experimentation, and building interesting systems around backend engineering and IoT.