System Administrator with 26 years of experience in a customer-facing role working with enterprise clients, and interdisciplinary and distributed teams across different countries: Colombia, Panama, India, Mexico, Chile, and Spain.
SaaS Platform Support and Management: Led the analysis, planning, and migration of over 5,800 Office 365 accounts between tenants. This task involved in-depth remote support for users in 4 countries, ensuring a smooth transition and resolving complex issues to improve the user experience. Innovation and Efficiency: Developed PowerShell scripts to automate data extraction, analysis, and loading, streamlining the migration process and reducing time.
Major achievementI led the migration of over 5,800 Office 365 accounts, developing PowerShell scripts and managing post-migration L2/L3 support across 4 countries.
Hardware/Software Troubleshooting: Managed and supported production clusters of over 300 nodes running Red Hat Linux and CentOS. Diagnosed and resolved critical timing and performance issues to ensure operational stability. PC Environment Support: Used Linux Ubuntu as the primary operating system on my workstation, interacting daily with tools such as Google Workspace, Slack, and Jira for collaboration and project management.
Major achievementManaged clusters of over 300 nodes on Red Hat Linux and CentOS, implementing Prometheus and Grafana for proactive monitoring.
Hybrid Environment Support (Mac and PC): Provided third-level support to the entire infrastructure, including support to functional analysts using macOS and PC computers to access development and testing environments. Virtualized Environment Administration: Managed horizontal scalability of application layers on WebSphere Application Server to support a 200% user growth at Nequi, ensuring stability during massive transaction events.
Major achievementI scaled infrastructure to support 200% growth in Nequi users, automating 90% of monitoring tasks.