Hello there! I'm Guillermo.
Observability Engineer and Backend Developer passionate about uncovering the stories hidden in data. Specializing in OpenTelemetry and the Elastic Stack, I build infrastructure that makes complex systems transparent. When I'm not monitoring enterprise environments, you'll find me simulating rocket missions, self-hosting services, or exploring the bleeding edge of AI and backend engineering.
Experience Logs
A chronological record of my professional journey in developing observability systems and data infrastructure.
Observability Engineer @ Search IT
OpenTelemetry, Elastic Stack, Honeycomb
Developing OpenTelemetry infrastructure for a Zurich Insurance Group project. My role focuses on Elastic Stack configuration (dashboards, alerts), documentation, and utilizing Honeycomb for performance analysis.
Securitas Direct IT Observability & Monitoring Team @ Mimacom
Elastic Stack
Providing data visualization requests from various teams and departments across both cloud and on-premises environments.
idCAT MVP @ Mimacom
Elastic Stack
Extracting information from SQL databases, Transforming and modificating it into indexes and Loading it in dashboards. Perfect ETL example with Elastic.
[Internship Project] GeMET @ Mimacom
Elastic Stack
My role within the Elastic team involved meticulous monitoring, ensuring the seamless flow of data and the proper working of the devices.
Project Modules
A selection of personal and academic projects showcasing my expertise in observability, full-stack, and infrastructure.
Mission Lifecycle Monitor
Docker, OpenTelemetry, Next.js
A full-stack observability demo simulating rocket missions. Features real-time telemetry visualization, failure injection, and distributed tracing with OpenTelemetry, Jaeger and Prometheus. Dockerized for easy deployment.
UwUpath
Next.js, Cloudflare Workers, Supabase
A high-performance link management platform designed to monetize evergreen content. I focused on developing the analytics infrastructure, creating granular visualizations for device and geo-analytics logged asynchronously to Supabase. Engineered with Cloudflare Workers for sub-50ms latency.
Self-Hosted Homelab
Proxmox, Docker, Linux, Networking
Design and maintenance of a private infrastructure environment independently. Hosting critical services such as media servers, network-wide ad blocking (Pi-hole), VPNS and home automation. I focus on network security, automated backups, and containerized deployment with Docker and Proxmox.
[Final Grade Project] Targett Chat
Kotlin, Firebase
Kotlin-based instant messaging application.
Ready to initialize a connection?
Whether it's discussing observability strategies or sharing new selfhost apps or IT (ugly) memes, my inbox is open.
fuentes.yago.guillermo@gmail.com