System and Network Administrator
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IT Infrastructure & Operations Professional A results-oriented and proactive professional with extensive experience in virtualization, server infrastructure, security, and automation. Proven ability to design, implement, and manage critical IT environments while leading successful migrations and enhancing operational efficiency.
Systems Administrator | Security Compass Technologies, Toronto, Canada | October 2022 – October 2025
Infrastructure & Virtualization Management
Administered a virtualized environment of 50+ servers (Windows Server, RHEL, Ubuntu) on a VMware vSphere/ESXi platform, supporting 200+ end-user devices.
Managed the full lifecycle of Dell PowerEdge server infrastructure via iDRAC, including provisioning, firmware updates, and hardware troubleshooting, ensuring 99.9% uptime.
Led in the end-to-end implementation of a new office server room, deploying ESXi hosts, backup power/UPS, structured cabling, and multi-WAN connectivity.
Installation and Maintenance of Web servers like Nagios
Installation of Database Servers used in Monitoring servers using Postgres SQL and VEEAM infrastructure using SQL Express
Maintenance and renewal of SSL certs.
Security & Identity Management
Engineered and migrated identity services from CentOS 7 FreeIPA to Red Hat Identity Management (IDM) on RHEL 9, enhancing security and supportability.
Strengthened endpoint security by implementing and supporting BeyondTrust PAM for privilege management across Linux, Windows, and macOS.
Configured and managed firewall rules, VPN access, and system hardening on 5x pfSense Plus appliances, aligning with strict security protocols.
Implemented Wazuh monitoring to replace OSSEC, integrating email and Slack alerts to improve security visibility and reduce incident response time.
Operations & Automation
Automated patch deployment for all endpoints using Manage Engine Endpoint Central, reducing manual patching effort and achieving 98% compliance.
Proactively averted a critical application outage by identifying and resolving an impending storage failure on a Dell Chassis through iDRAC and Secure Connect Gateway alerts.
Developed and implemented comprehensive backup strategies using Veeam Backup & Replication to ensure data integrity and disaster recovery readiness.
Administered Google Workspace and Microsoft 365 Productivity Platform Tools
Project Leadership & Migration
Spearheaded the migration of critical application servers from a Leaseweb datacenter, configuring new ESXi hosts, pfSense firewalls, and monitoring (Nagios) to ensure a seamless transition.
Played a key role in troubleshooting a critical network outage by analyzing DNS, WAN, and firewall logs, methodically restoring service and minimizing business impact.
Systems Administrator | Intrado, Toronto, Canada | June 2008 – September 2022
A results-driven and versatile IT professional with extensive experience in system administration, cloud platform management. Proven ability to manage complex, global infrastructures, automate processes, and resolve critical issues to ensure high availability and performance.
Cloud & Platform Administration
Deployed and managed in-house applications within a hybrid cloud architecture, integrating on-premises private clouds with public cloud resources.
Leveraged automated application deployments to Pivotal Cloud Foundry (PCF) using Ansible playbooks, streamlining the release process and reducing manual effort.
Administered and performance-tuned Oracle WebLogic servers, including installation, configuration, and deployment of WAR/EAR files across multiple platforms.
Managed VMware vSphere infrastructure, including ESXi hosts, VMs, and associated tools, supporting a global server footprint across North America, EMEA, and APAC.
Systems & Infrastructure Management
Engineered and maintained a heterogeneous server environment (RHEL 5/6, Windows Server 2008/2012) utilizing automated build tools like BladeLogic.
Spearheaded the migration of the IT service management platform from CA ServiceDesk to ServiceNow, enhancing tracking capabilities and improving the CMDB.
Led the planning and execution of three data center migrations, including inter-cage and inter-facility moves, ensuring minimal downtime through meticulous change management and traffic routing.
Managed NetApp storage systems, including provisioning shares and resolving complex mount point issues on Linux servers.
Automation, Scripting
Maintained automation scripts (Bash, Shell) for routine system administration tasks, job scheduling, and application deployments.
Leveraged Ansible for configuration management and automated application deployment, establishing a foundation for Infrastructure as Code (IaC) practices.
Support & Operations
Served as a Tier III escalation point for complex technical issues; diagnosed and resolved critical problems related to applications, OS, network, and hardware.
Monitored enterprise health using tools like SolarWinds, Splunk, Newrelic ; configured custom alerts and triggers for proactive issue resolution.
Administered Active Directory, DNS, and backup solutions (LiveVault, Veeam) for production and pre-production environments, ensuring security and high availability.
Hardware & Vendor Management
Possess extensive hands-on experience with HP server hardware, including racking, RAID configuration, iLO setup, and OS installation in data centers.
Liaised with vendors and internal technical teams to resolve hardware, network, and infrastructure issues, ensuring swift problem resolution.
Don Bosco Technical College, Manila PH
