Krismon Guevara
IT ENGINEER | SYSTEM ADMINISTRATOR
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About
IT Engineer and System Administrator with experience in technical support, system administration, network troubleshooting, Microsoft 365, Microsoft Entra ID/Azure AD, Active Directory, endpoint security, backup and disaster recovery, and IT infrastructure support. Experienced in managing user accounts, resolving complex hardware and network issues, supporting enterprise users, and administering ticket-driven IT operations.
Experience
IT Engineer / System Administrator - FHL Services Inc. - Mandaluyong City, Philippines
(2023-02 - 2026-06)
- Managed and troubleshot IT asset and support tickets using Jira and Confluence, reducing average resolution time by 85%.
- Configured and troubleshot network infrastructure including IP CCTV, switches, routers, and firewalls to maintain reliable connectivity.
- Managed user accounts across Microsoft Entra ID, Microsoft 365, and Azure AD, resolving 86% of issues in a timely manner for more than 1,800 users.
- Implemented security measures and technical configurations to improve system integrity and performance.
- Executed backup and disaster recovery strategies to optimize data retention and accessibility.
- Implemented Active Directory Group Policies to strengthen security and standardize user account functionality.
- Diagnosed and resolved complex network and hardware issues to improve operational efficiency.
- Managed open support tickets and reduced resolution times by approximately 75%, improving user satisfaction.
- Troubleshot and maintained AV systems in company meeting rooms to ensure reliable meeting experiences.
- Performed operating system installations, including dual-boot Windows and Linux configurations.
Level 3 IT Support Engineer - Pro Source Global BPO Inc. - Makati City, Philippines
(2021-11 - 2023-01)
- Provided Level 3 technical support for complex hardware, software, operating system, and network issues.
- Diagnosed and resolved escalated IT incidents to restore user productivity and system availability.
- Supported network connectivity troubleshooting and enterprise IT infrastructure operations.
CCTV & Access Point Freelance Installer - Self Employed - Taytay, Rizal, Philippines
(2020-09 - 2021-10)
- Installed and configured IP CCTV and access control systems for reliable physical security monitoring.
- Evaluated network signal quality and performance and provided recommendations for improvements.
- Performed CCTV repairs, troubleshooting, and configuration to improve system reliability and user experience.
Senior IT Support Engineer - Metrocon Construction Development Corp. - Pasig City, Philippines
(2015-05 - 2020-08)
- Maintained and monitored server room operations to support the availability of critical telecommunication systems.
- Managed IT infrastructure to improve performance, reliability, and service delivery.
- Collaborated with teams to recommend and implement IT operational improvements.
System Administrator - University of Santo Tomas - Manila City, Philippines
(2011-03 - 2015-04)
- Administered university IT systems and provided user support to maintain system functionality for students and faculty.
IT Specialist & POS Technician - Red Ribbon Bakeshop Inc. - Quezon City, Philippines
(2009-12 - 2011-02)
- Provided technical support and troubleshooting for POS systems to maintain reliable retail transaction operations.
Education
Bachelor of Science - Information Technology - AMA Computer College (2004-02 - 2008-01)
