Arnold M. Arellano
SYSTEM ADMINISTRATOR | REMOTE IT SUPPORT | INFRASTRUCTURE OPERATIONS
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About
System administrator and IT support professional with 15+ years of experience supporting international, remote, multi-site, and enterprise environments. Hands-on background in Windows and Linux servers, workstation and application troubleshooting, network administration, virtualization environments, Microsoft cloud services, service desk operations, cybersecurity, and 24/7 support. Experienced as a technical escalation point and IT leader, with a strong focus on customer service, clear communication, reliable incident resolution, and business continuity.
Experience
Senior Technical Support Specialist - Sky Black Box - Remote, Sydney, Australia
(2025-08)
- Provide remote technical support for enterprise software, integrations, data feeds, and client-facing business systems.
- Manage service desk tickets, prioritize critical incidents, and troubleshoot application and access issues affecting live operations.
- Administer IAM and MFA controls and coordinate security patches with DevSecOps and software engineering teams.
Information Technology Manager - Pochet GmbH - Germany / Remote
(2023-09 - 2026-08)
- Managed multi-site IT operations and support for POS, warehouse, inventory, and online business applications.
- Maintained network availability and failover capability and resolved infrastructure and application issues across branches.
- Led technicians and vendors, coordinated service contracts, and supported secure and reliable daily operations.
Information Technology Manager - Amsteel - Jeddah, Saudi Arabia
(2018-08 - 2023-06)
- Led IT infrastructure, technical support, system upgrades, migrations, security improvements, and staff development.
- Monitored system performance and logs, investigated bottlenecks, and drove incidents and improvement work to completion.
- Performed security audits and risk assessments and coordinated projects with internal stakeholders and external providers.
Senior System Administrator - AkrantY Labs FZ LLC - Dubai, UAE
(2017-11 - 2018-07)
- Configured and supported Windows Server, virtualization, client/server, storage, firewall, routing, and network environments.
- Supported international clients, resolved infrastructure and application issues, and performed maintenance and recovery tasks.
- Prepared performance reports, tested disaster recovery plans, and trained users to reduce repeat support issues.
Data Center Operations Engineer Lead - Microsoft Singapore / Atos - Singapore
(2013-06 - 2017-04)
- Led 24/7 operational support, monitoring, and troubleshooting for enterprise Windows and Linux servers and network devices.
- Installed and upgraded hardware and operating systems, managed incidents through ticketing tools, and acted as an escalation point.
- Maintained operating procedures, access controls, and technical documentation supporting availability and compliance.
Systems Engineer - ServTouch-Wywy - Singapore
(2011-02 - 2012-10)
- Delivered onsite and remote support across client environments, including workstation, server, network, application, and printer issues.
- Installed and maintained Windows and Linux servers, network equipment, security systems, and SQL-based solutions.
- Monitored performance, completed routine maintenance, and worked with clients and technical teams to restore service efficiently.
Education
Bachelor of Science - Computer Engineering - University of Saint Louis, Tuguegarao City, Philippines (2000 - 2005)
Instrumentation Technology - MFI Technological Institute, Pasig City, Philippines (2007)
