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ivfrost/README.md

Hi, I'm Pablo

Full Stack Developer  ·  Málaga, Spain  ·  Open to new opportunities

About

Self-taught Full Stack developer, backend-leaning. I care about understanding how things work, not just making them run, and shipping quality code that's easier to maintain and debug.

I run Linux daily, self-host services on Proxmox, and use Coolify for deployment testing. Currently preparing for the AWS Certified Developer – Associate (DVA-C02) to strengthen my cloud and scalability skills.

Java TypeScript Spring Boot React Expo TailwindCSS PostgreSQL Redis Docker AWS Coolify

Let's Connect

LinkedIn Email Website

Featured Work

Hydrolink: Full-stack IoT irrigation platform, built solo from ESP32 firmware to React Native app

Born from a real need: managing irrigation systems in the countryside without physically checking on them.

Tech: Java/Spring Boot · React Native (Expo) · TanStack Query · PostgreSQL · Redis · MQTT (NanoMQ) · Docker · Coolify · ESP32/PlatformIO

Features:

  • Area provisioning and auth via per-area secret exchanged over an Authorization header, with two-phase secret rotation over MQTT and RSA-signed broker auth and ACLs
  • User profiles: recovery codes, email and password reset
  • Area details: image, name, location, description
  • Stations: configurable, renamable, assignable roles (solenoid, sensor, etc.), manual control with countdown feedback
  • Full per-area, per-day scheduling system: time windows, absolute or relative activation (relative to another station), overlap detection to prevent conflicts
  • Dockerized backend with separate dev/prod builds, orchestrated via Compose with Postgres, Redis, and MQTT broker, each with health checks
  • Deployed on Coolify with secure environment variable injection

API Repo · App Repo (firmware closed source)

Featured Certifications

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  1. hydrolink-api hydrolink-api Public

    Java Spring Boot REST API for the Hydrolink smart irrigation system

    Java

  2. hydrolink-app hydrolink-app Public

    React Native (Expo) app for managing and monitoring Hydrolink smart irrigation devices

    TypeScript

  3. ai-agent-py ai-agent-py Public

    AI agent built from scratch in Python using the Gemini API. Implements the ReAct loop with file system tools for reading, writing, and executing code.

    Python

  4. spring-ticketing-microservices spring-ticketing-microservices Public

    A high-performance, event-driven distributed system for event management (as in events that people attend) and ticket processing built with Java 21 and Spring Boot 4.0.1.

    Java