Available for opportunities

Omar Jiménez

IT professional based in North York, Ontario, Canada — building reliable systems, automating workflows, and running a self-hosted homelab 24/7 on a Raspberry Pi 5.

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About Me

Two decades of building & operating systems

I am an IT professional with over 20 years of hands-on experience designing, implementing, and maintaining enterprise systems. My career spans database administration, backend development, infrastructure engineering, and modern DevOps practices.

Fluent in English, Spanish, and Portuguese, I bring a collaborative and cross-cultural perspective to every team. I am passionate about automation, reliability, and building things that run unattended — like this very server.

20+

Years Exp.

3

Languages

Infrastructure & Dev

Linux / Bash

Python

Networking / VPN

Apache / PHP

Databases

Oracle DB

PL/SQL

Oracle APEX

MySQL

Data Warehousing

ETL Expert

GIS & Spatial

GIS Expert

QGIS

Data & Reporting

Power BI

Google Sheets / Apps Script

Design & Engineering

AutoCAD

Projects

What I build in my spare time

Personal projects that combine my professional expertise with a passion for automation and self-hosting.

📈

Algorithmic Trading Bot

A Python-based automated trading system that runs 24/7 on this Raspberry Pi 5. It performs real-time market analysis, executes trades based on configurable technical strategies, manages position sizing, and logs all activity for review. The system handles connectivity resilience, automatic restarts, and sends notifications on key events.

Python Async I/O REST APIs WebSocket Systemd SQLite

🖥️

Self-Hosted Homelab

A self-hosted infrastructure built around a Raspberry Pi 5 as the main server and a Raspberry Pi Zero 2W as a lightweight monitoring node. Services include Apache2 with SSL (this site), WireGuard VPN for secure remote access, automated encrypted backups, cron-based monitoring, and a custom metrics API that feeds this live dashboard.

Raspberry Pi 5 Apache2 WireGuard Bash Let's Encrypt Cron

📡

Reddit Trends SEO Pipeline

An automated pipeline running on a Raspberry Pi 5 that fetches top Reddit posts every 3 hours, filters mod announcements and validates genuine trends using Gemini AI, then generates SEO-optimized content with proper content-type classification. Notifies Google Search Console and Bing Webmaster Tools on each update.

Python Gemini AI Reddit API SEO Raspberry Pi 5 PHP

View Project

🛩️

Live Flight Data Visualization

Real-time aircraft tracking over Canada powered by a Raspberry Pi 5 that fetches live data from the OpenSky Network API every 10 minutes using OAuth2, then pushes it to the web server. A Leaflet.js interactive map and Chart.js analytics run in the browser, while an Oracle APEX dashboard backed by Oracle Autonomous Database provides SQL-driven historical analysis.

Leaflet.js Chart.js Oracle APEX OpenSky API OAuth2 Raspberry Pi 5

View Dashboard

Live System

Homelab running live, 24/7

Real-time telemetry from the self-hosted Raspberry Pi 5 and its peripherals — the same hardware serving this website and running all backend services around the clock.

Raspberry Pi 5 — Live Stats

Real-time metrics updated every 30 seconds.

⚡

CPU Usage

—

Load avg: —

💾

RAM Used

—

of — GB

🌡️

CPU Temp

—

Normal

⏱️

Uptime

—

Since last reboot

💿

Disk Used

—

of — GB

Raspberry Pi Zero 2W — Live Stats

Real-time system metrics from the lightweight monitoring node.

⚡

CPU Usage

—

Load avg: —

💾

RAM Used

—

of — GB

🌡️

CPU Temp

—

Normal

⏱️

Uptime

—

Since last reboot

💿

Disk Used

—

of — GB

BME680 — Environment Sensor

Live readings from a BME680 sensor: temperature, humidity, pressure, and air quality.

🌡️

Temperature

—

°C

💧

Humidity

—

Relative humidity

🔵

Pressure

—

hPa

💨

Air Quality

—

Gas resistance

Live Security

The Raspberry Pi 5 homelab under the internet

This Raspberry Pi 5 is publicly reachable and gets scanned and attacked constantly. These are the real numbers — SSH intrusion attempts blocked by fail2ban, IPs currently banned, and genuine human visits — updated every 15 minutes.

🛡️

SSH Attempts Today

—

7d: —

🚫

IPs Blocked Now

—

7d total: —

👤

Human Visits Today

—

7d: —

🌐

Top Visitor Country

—

Recent Visits

Origin	Time	Browser
—

Top Attack Origins

Security History Dashboard

An Oracle APEX dashboard will be embedded here, providing SQL-driven historical charts: attack trends over time, banned IPs by country, and visitor analytics — powered by Oracle Autonomous Database (Always Free).

In development

Powered by Oracle APEX on Oracle Autonomous Database (Always Free tier).

Blog

Thoughts & Field Notes

Technical write-ups, lessons learned, and experiences from professional work and personal projects.

March 2026

From Floppy Disks to AI: 25 Years of Paradigm Shifts

A 25-year journey through computing: from a school hallway prediction about networked computing to working alongside AI as a daily collaborator.

AI Opinion

Read more →

March 2026

Building an air quality monitor with BME680 and Raspberry Pi Zero 2W

How a brand-new Pi Zero 2W became a fully automated indoor air quality station: BME680 sensor, Elegoo display, Telegram alerts, and a hybrid IAQ algorithm running as a systemd service.

IoT

Read more →

March 2026

Running a 24/7 trading bot on a Raspberry Pi 5: architecture and lessons learned

How I designed a resilient Python trading system that survives power outages, network drops, and API rate limits — running continuously on a low-power ARM device.

Trading

Read more →

February 2026

WireGuard VPN on Raspberry Pi: the definitive self-hosted setup guide

Step-by-step: install WireGuard, generate keys, configure peers, set up IP forwarding, and access your home network securely from anywhere in the world.

Homelab

Read more →

January 2026

Linux performance tuning for low-power ARM servers: a practical guide

Squeeze every bit of performance from your Pi: CPU governor, memory management, swap configuration, I/O scheduler tuning, and monitoring with lightweight tools.

Linux

Read more →