Sergio Romero Sanchez

Solutions Architect & Site Reliability Engineer | Customer-Facing Technical Consulting

About Me

Solutions Architect and Certified Expert Site Reliability Engineer with 20+ years spanning both sides of the table: customer-facing technical consulting and hands-on ownership of the platforms underneath.

Seven of those years were spent in customer-facing technical roles. As Lead Solutions Architect at IBM I ran on-site requirement sessions with CIOs and technical stakeholders, designed hybrid and multi-cloud target architectures, presented and demoed them to executive and engineering audiences, and oversaw delivery through implementation and handoff. At VMware I owned VMware Lab Platform end to end — qualifying leads, running discovery calls, delivering live product demos, and guiding customers to the right subscription — while running the vSphere and NSX infrastructure the platform depended on.

The other side is production operations: reliability engineering, SLOs and error budgets, observability, Infrastructure as Code, incident response, and cloud cost optimization across AWS, Azure, GCP, IBM Cloud, Kubernetes, and OpenShift.

I built and teach the IBM SRE Academy, along with Kubernetes/OpenShift and FinOps bootcamps, and mentor engineers moving into reliability roles. Recognized as an IBM Profession Champion for contributions to the SRE profession through mentoring, speaking, and technical education. CKA certified and Open Group Certified Solution Architect. Native Spanish, fluent English.

Projects

Kagent SRE Companion

AI-powered SRE companion platform with intelligent blue/green deployments, autonomous failover controllers, and conversational cluster operations.

SRE Academy

Hands-on SRE training series teaching reliability engineering through practical Kubernetes labs. Covers monitoring, automation, CI/CD, GitOps, rollbacks, and chaos engineering.

GCP SRE Hands-On Training

A structured professional development program that takes developers to production-ready SRE competency through systematic, hands-on exercises on Google Cloud.

CKA Study Guide

Preparation guide for the Certified Kubernetes Administrator exam, with hands-on examples, simulators, and strategies drawn from real-world operations.

AWS Instance Scheduler

Terraform automation for EC2 instance uptime scheduling, cutting operational spend through automated start/stop windows and resource optimization.

AWS Terraform + Packer

End-to-end AWS environment provisioning with Terraform and Packer, covering VPC, subnets, security groups, and an Nginx application behind a load balancer.

All repositories on GitHub

Writing

All articles on Medium