Welcome to Ernesto Diaz

Discover my journey, projects, and skills.

About Me

IT Systems Administrator with a broad skill set across various platforms, specializing in cloud infrastructure, system automation, security, and performance monitoring. Over the years, I’ve had the privilege of managing complex infrastructures and leading successful projects that enhance system reliability and efficiency.


I have extensive experience managing AWS infrastructure, and I’ve optimized system performance through tools like Icinga, Splunk, and CloudWatch.


I’ve also taken on mentorship roles, guiding junior sysadmins and leading infrastructure refresh projects that involved collaborating with vendors and cross-functional teams. As part of my focus on security, I’ve implemented and managed OKTA SSO integrations across various business platforms like Slack, Salesforce, GitLab, and Monday.com.


My expertise extends to software distribution and patch management as well as overseeing asset management. I’ve also worked closely with Security and DevSecOps teams to ensure secure deployment of applications across the organization. Additionally, I contributed to security enhancements, improving the organization’s security posture..