Open to opportunities

Mark Eustaquio

@markeustaquio

I’m an IT Systems Specialist who leads cloud infrastructure, security, and managed services to deliver reliable client outcomes.

Philippines

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What I'm looking for

I’m looking for a role where I can lead cloud infrastructure and managed services, strengthen cybersecurity, and improve reliability through automation, strong AD governance, and clear escalation ownership—while collaborating as a hands-on team leader.

I’m an IT professional with multiple years across systems and operations technology, delivering technical solutions and managing cloud infrastructure. I bring Microsoft certifications and deep experience in Windows management administration across servers, applications, and network infrastructure, with a mindset built for technology enhancement, project implementation, and cybersecurity innovation.

Most recently, I’ve supported fully managed MSP clients by administering Microsoft 365 environments (Azure/Intune, Exchange, Teams, SharePoint), resolving infrastructure and access issues, and driving escalations from Tier 1 through Tier 3 SME. Earlier, I led 24/7 systems operations and hands-on data center work—server provisioning, VMware-based clustering/HA, automation via batch and PowerShell/PDQ Deploy, and strong Active Directory governance—while keeping uptime, redundancy, and security stability as priorities. Futuristic and optimistic, I adapt fast and lead with accountability to achieve goals and measurable service performance.

Experience

Work history, roles, and key accomplishments

Tier 2 IT Systems Specialist

TELUS Business

May 2023 - Dec 2025 (2 years 7 months)

Provided managed services for 450–500 clients across Canada, the US, and Australia by administering Microsoft 365 (Azure/Intune, Exchange, Teams, SharePoint). Configured Barracuda, Fortinet, Meraki, and Sophos appliances and resolved 180–200 ServiceNow tickets per month.

Microsoft 365 Microsoft Intune Exchange Teams SharePoint ServiceNow Fortinet Cisco Meraki Barracuda Sophos

IT Infrastructure Service Engineer

SPD Consultancy

Oct 2021 - May 2023 (1 year 7 months)

Served as a Level 3 IT engineer/administrator for Huawei projects by maintaining SMART Communications Philippines data center operations. Supported Fusion-Sphere cloud/servers/storages using Huawei Ocean Storage V3/V5/V6 and E9000 equipment across 4 sites (production and backup).

Huawei E9000 Fusion Sphere Cloud Data Center Operations Storage Administration Server Administration

Systems Administrator - Windows

Alexander Karl Group Corp

Dec 2019 - May 2020 (5 months)

Operated MSP-managed services for Union Bank Plaza across 35 hosts and 200+ virtual machines using VMware 6.5 (vCenter) and Finacle Logical Domain. Delivered virtualization provisioning/HA reactivation and VPN application installs while performing systems hardening and Windows/Linux server administration.

Finacle Logical Domain Active Directory PowerShell

Senior Service Desk Specialist

Isentia Media Intelligence

Jul 2019 - Dec 2019 (5 months)

Provided Level 2 senior specialist ticketing support for 230 users and 100+ servers, storages, and network infrastructure using JIRA. Managed Active Directory access (users, groups, and GPOs) and supported Exchange-to-G-Suite migration with incident RCA and remediation.

Jira Service Desk Active Directory Root Cause Analysis Exchange To G Suite Migration

Team Leader Systems Engineer

Tahakom Group / E2 Enterprise

Jun 2010 - Dec 2018 (8 years 6 months)

Led 24/7 operations for the SAHER automated traffic control and management systems while supervising a team across 20 nationalities. Managed VMware 6.0 infrastructure for 300 blade Dell-EMC servers (clustering/DRS/vMotion/HA), automated deployments with PDQ Deploy, and performed security patching plus penetration testing.

PDQ Deploy Active Directory Penetration Testing NAS SAN Backups

Systems IT Administrator

Nesma Telecom and Technology

Jan 2009 - Jun 2010 (1 year 5 months)

Implemented and supported branch network architecture for NESMA using Wi‑Fi security (WEP/WPA), MAC filtering, and web filtering. Managed 50 racks of EMC/Dell disaster-recovery NAS backup servers and configured Windows 2003 services (DHCP, FS, ADS, DNS, PDC).

WEP WPA Wi Fi Security Web Filtering NAS Backup Administration DHCP DNS Active Directory

Wintel Support Engineer

PrimeOrion / SGS Gulf

Jan 2004 - Sep 2008 (4 years 8 months)

Provided Wintel support and on-call systems security for client environments by administering Active Directory, group policies, and authentication servers aligned to SLA. Resolved issues via HP Open-View ticketing and supported WAN/LAN infrastructure operations for 24/7 service coverage.

Active Directory Administration Group Policy Authentication Systems & Security Windows Server Administration

Field Network Engineer

IBM Solution Delivery

Sep 2001 - Jun 2003 (1 year 9 months)

Troubleshot Citibank network connectivity and upgraded Cisco 2900 routers and Cisco 5500 switches. Coordinated PABX vendor activities (AVAYA/Lucent links) including cabling, patching, and activation while maintaining security policy infrastructure.

Cisco 2900 Routers Cisco 5500 Switches Network Troubleshooting PABX AVAYA Integration

Education

Degrees, certifications, and relevant coursework

FEU Institute of Technology

Bachelor of Science (Computer Information Science), Computer and Network Engineering

1996 - 2001

Earned a Bachelor of Science in Computer Information Science with a major in Computer and Network Engineering (B.S. CIS-CNE) at FEU Institute of Technology from 1996 to 2001.