About Me

Hi, I’m Roberto Guarneros, an Aerospace Engineer and Network Engineer focused on building reliable, real-world systems.

Throughout my academic and professional journey, software has never been an end in itself, but a tool for making complex systems work, from embedded firmware in safety-critical environments to distributed cloud infrastructures.

I hold a double Bachelor’s degree in Aerospace Systems Engineering and Telecommunication (Network) Engineering from the Polytechnic University of Catalonia. My background combines system-level thinking from aerospace with strong foundations in operating systems, networks, and software architecture.

Professionally, I’ve worked on embedded and system software at SEAT-CUPRA, developing automotive data capture systems involving hardware–software integration and protocols like CAN and Ethernet. I later worked at NanoSat Lab on the on-board computer of the 3Cat-8 nanosatellite, where I dealt with real-time operating systems, concurrency, and failure-critical communication between space and ground systems.

Today, I work as a software and DevOps engineer, designing and deploying production-grade cloud-native systems using Kubernetes, GitOps workflows, and high-availability architectures. Building distributed systems has reinforced my interest in correctness, scalability, and long-term maintainability.

This blog is where I write about systems engineering, embedded development, networking, DevOps, and the theory behind the tools we use, with a focus on understanding why systems work, not just how.

I have completed the Hack The Box Certified Penetration Testing Specialist (HTB CPTS) path, deepening my knowledge of cybersecurity, penetration testing methodologies, and offensive security techniques. You'll find write-ups from CTF challenges, security research, and practical insights from the cybersecurity field alongside my systems engineering content.