$ whoami
Zoel Arias Manchón
├── Backend & Web Developer
├── IoT & embedded tinkerer
├── Security enthusiast
└── Building real connected projects to learnWhat I'm into:
Embedded Devices → Backend APIs → Databases → Telemetry → Security
 Rust |
 Python |
 TypeScript |
 JavaScript |
 PHP |
 React |
 Astro |
 Node.js |
 Laravel |
 PostgreSQL |
 MySQL |
 MongoDB |
 Redis |
 Bootstrap |
 Docker |
 Nginx |
 Linux |
 Git |
 Grafana |
 InfluxDB |
 Arduino |
Most of what I build is a slice of one bigger idea: getting data out of the physical world and into something I can store, watch, and secure. My projects line up along that path — sensors on one end, dashboards on the other.
flowchart LR
A["Edge devices<br/>ESP32 · sensors"] --> B["Connectivity<br/>LoRaWAN · MQTT"]
B --> C["Backend APIs<br/>Rust · Axum · Node"]
C --> D["Data stores<br/>PostgreSQL · MongoDB · Redis"]
D --> E["Telemetry<br/>InfluxDB · Grafana"]
|
Zero-trust authentication backend with TOTP MFA, JWT rotation & replay protection, GeoIP impossible-travel detection, and a defensive attack simulator that CI-verifies the defenses. 
|
Security-focused Arch Linux setup: system hardening, reduced attack surface, and production-ready configuration practices. 
|
|
End-to-end IoT temperature & humidity monitor: ESP32 + DHT22 firmware publishing over MQTT to a Node.js/Express backend and a real-time React dashboard. 
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|
Energy monitoring over LoRaWAN: collecting, processing, and visualizing electrical consumption data. 
|
|
Wearable IoT project using LoRaWAN, embedded sensors, and remote monitoring.
|
Modern Snake game built around game logic, rendering, and desktop interaction. 
|
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Real-time cryptocurrency terminal: a Rust/Axum backend streaming live prices over WebSockets to an Astro + React dashboard, with PostgreSQL persistence and a full Docker stack. 
|
struct Developer {
name: &'static str,
focus: [&'static str; 4],
currently_building: &'static str,
coffee_dependency: bool,
}
let zoel = Developer {
name: "Zoel Arias Manchón",
focus: [
"Rust & Axum for backend APIs",
"IoT with ESP32 & LoRaWAN",
"Linux & security fundamentals",
"Databases & telemetry pipelines",
],
currently_building: "connected systems, end to end",
coffee_dependency: true,
};
## How I Like to Work
```text
Build small projects, not just isolated scripts.
Measure what I build.
Automate the boring stuff.
Keep security in mind from the start.
Ship something that actually works.