Rogelio M. Devio
Land Registration Systems, Inc.
Valenzuela City
20
years of professional experience
IT Infrastructure professional with hands-on experience in server administration, virtualization, Linux systems, networking, firewall administration, monitoring, storage, and enterprise IT operations. Currently supporting enterprise infrastructure involving VMware ESXi/vCenter, RHEL/Linux, IBM Storwize/SAN, NAS, and endpoint management platforms. Experienced in server provisioning, UAT support, network access control, infrastructure troubleshooting.
Work History
IT Support Staff
1 Year 8 Months- Support an enterprise infrastructure environment consisting of 24 Dell ESXi hosts, fewer than 10 IBM ESXi servers including DR infrastructure, and 800+ virtual machines.
- Administer and troubleshoot approximately 40 on-premises physical servers under the infrastructure team's responsibility.
- Provide infrastructure and technical support to approximately 150 users, including Development and QA teams, encoders, training personnel, and office staff.
- Manage Ubiquiti / UniFi wireless access points.
- Support the UAT3 environment, including server provisioning, network access, connectivity, and infrastructure requirements for application testing.
- Perform preventive maintenance and infrastructure support for on-premises servers and workstations across Registry of Deeds locations, including infrastructure commissioning and pre-deployment activities.
- Support VMware ESXi and vCenter environments, including VM provisioning, cloning, snapshots, VMware Tools, and virtualization troubleshooting.
- Monitor critical infrastructure components using WhatsUp Gold and SNMP, with focus on database servers, network devices, ESXi hosts, and UAT application servers.
- Support infrastructure storage environments involving IBM Storwize, SAN, and NAS.
- Maintain infrastructure backup procedures and automation, including FortiGate configuration backups to NAS/SFTP storage.
- Troubleshoot server performance, connectivity, DNS, firewall, application access, and other infrastructure-related issues.
- Coordinate with NOC SysAdmin, NOC DBA, SOC Operations, QA/Testers, Development, PMO, and other technical teams for infrastructure changes, testing, and incident resolution.
IT Specialist
- Administered and supported VoIP and telephony systems, including troubleshooting of voice communication issues.
- Provided technical support for softphone applications, including configuration, connectivity, audio, and call-related issues.
- Administered Active Directory, including user account management, access support, and basic domain administration.
- Managed and maintained pfSense firewall configurations and assisted with network connectivity and security troubleshooting.
- Performed network and hardware troubleshooting for workstations, network devices, and other IT equipment.
- Installed, terminated, and maintained network cabling and physical network infrastructure.
- Supported and maintained CCTV systems, including basic troubleshooting of cameras, connectivity, and related equipment.
- Diagnosed and resolved common IT incidents involving hardware, software, network connectivity, VoIP, and user access.
Account Specialist
11 Years- Administered and supported VoIP and telephony systems, including troubleshooting of voice communication issues.
- Provided technical support for softphone applications, including configuration, connectivity, audio, and call-related issues.
- Administered Active Directory, including user account management, access support, and basic domain administration.
- Managed and maintained pfSense firewall configurations and assisted with network connectivity and security troubleshooting.
- Performed network and hardware troubleshooting for workstations, network devices, and other IT equipment.
- Installed, terminated, and maintained network cabling and physical network infrastructure.
- Supported and maintained CCTV systems, including basic troubleshooting of cameras, connectivity, and related equipment.
- Diagnosed and resolved common IT incidents involving hardware, software, network connectivity, VoIP, and user access.
Skills
Server & Systems Administration: Windows Server; Server Provisioning; IP/DNS Configuration; System Troubleshooting
Virtualization: VMware ESXi; VMware vCenter; VM Provisioning; VM Cloning; Snapshots; VMware Tools
Firewall & Security: pfSense; Firewall Policies; Application Control; Traffic Filtering; Security Hardening
Storage & Infrastructure: IBM Storwize; SAN; NAS; Storage Provisioning; Backup Configuration
Cloud & Productivity: Google Workspace; Microsoft 365
IPPBX & GSM Gateway: Configuration and setup Outbound calls and Inbound calls
Trunks Etc.
Personal Information
Title: IT Infrastructure / IT Staff Specialist
Timeline
IT Specialist
Panlilio Credit and Collection Services, Inc.
01.2029 - 01.2025Read More
IT Support Staff
Land Registration Systems, Inc.
01.2025 - CurrentRead More
Account Specialist
Pacer Collection Services, Inc.
01.2007 - 01.2018Read More