Alejandro Waldemar

Barillas Fuentes

Main Responsibilities: Managed IT requirements from the Executive Board and coordinated with technology service providers. Administered local and extended network infrastructure (MPLS, Tigo Business). Oversaw perimeter security (firewall), SaaS systems (institutional ERP), and NEC PBX. Created and managed multi-site ERP user accounts; resolved incidents via ticketing system. Supervised technical support teams (hardware, software, networks, multimedia). Led the Community Manager and ID card departments. Managed IT inventory, surveillance systems, and multimedia equipment for live streaming (Zoom). Implemented ITIL-based practices and cybersecurity policies. Key Achievements: Modernized the institutional ERP system with multi-tenant support. Redesigned corporate network infrastructure, improving inter-office connectivity and performance. Deployed monitoring tools (Grafana, Loki, Snort) for real-time alert and traffic analysis.

Led IT operations and infrastructure modernization across the national institute for nearly a decade. Managed data centers, cloud environments (AWS, VMware vSphere), and hybrid networks integrating Windows, Linux, and macOS systems. Oversaw cybersecurity, firewalls, ERP systems, and technical support teams. Directed deployment of SAN/NAS storage, FortiGate firewalls, and network routing/switching. Administered institutional web servers, mail servers, and WordPress platforms. Developed PHP/MySQL web systems and digital services. Provided leadership in network engineering, systems administration, and incident response, ensuring secure, reliable, and high-availability IT services nationwide.