System Administrator / System Engineer

Key Responsibilities

• Administer, maintain, and support Windows and Linux servers, virtualization platforms, storage systems, and network infrastructure.
• Manage and maintain VMware vSphere/ESXi, vCenter, Microsoft Hyper-V, or equivalent virtualization platforms.
• Administer Active Directory, Domain Controllers, Group Policy, DNS, DHCP, file services, certificate services, and identity management.
• Monitor system health, infrastructure performance, storage utilization, network availability, and application services using enterprise monitoring and logging tools.
• Perform server and infrastructure installation, configuration, upgrades, migration, maintenance, and decommissioning.
• Plan and maintain backup, restore, disaster recovery, business continuity, and high-availability solutions, including regular recovery testing.
• Perform OS patching, firmware upgrades, security updates, system hardening, and vulnerability remediation.
• Troubleshoot complex infrastructure issues involving operating systems, virtualization, storage, networking, and applications, including root cause analysis and corrective actions.
• Support infrastructure deployment, migration, upgrades, cloud integration, and technology refresh projects.
• Work closely with Project Managers, Software Development, Application Support, Database, QA teams, vendors, and customers to support project implementation and production operations.
• Develop and maintain technical documentation, including SOPs, installation guides, architecture diagrams, operational procedures, and disaster recovery documentation.
• Ensure infrastructure complies with IT governance, security policies, change management processes, audit requirements, and operational standards.
• Evaluate new technologies and recommend improvements to enhance performance, security, scalability, and operational efficiency.
• Provide Level 2/Level 3 technical support and participate in on-call or standby support when required.
• Provide technical guidance and knowledge sharing to junior team members.

Requirements

• Diploma/Higher Diploma or Bachelor's Degree in Computer Science, Electrical/Electronic Engineering, Computer Engineering, or a related field.
• Minimum 4 years of hands-on experience in System Administration, Infrastructure Engineering, or System Engineering within an enterprise environment.
• Strong experience in administering Windows Server and Linux operating systems.
• Hands-on experience with VMware vSphere/ESXi, Microsoft Hyper-V, or other virtualization platforms.
• Strong knowledge of enterprise networking, including TCP/IP, DNS, DHCP, VLAN, VPN, routing, switching, and firewall concepts.
• Strong experience with Active Directory, Group Policy, Domain Controllers, DNS, DHCP, Certificate Services, and Identity Management.
• Experience with enterprise storage technologies such as SAN, NAS, RAID, storage replication, and backup solutions.
• Strong knowledge of backup, disaster recovery, business continuity, and high availability.
• Practical experience with PowerShell, Bash, or Shell scripting for automation and system administration.
• Experience in OS hardening, patch management, vulnerability remediation, and infrastructure security.
• Experience with infrastructure monitoring and logging tools for performance monitoring, capacity planning, and proactive incident detection.
• Strong analytical and troubleshooting skills with the ability to perform root cause analysis.
• Good communication, documentation, interpersonal, and stakeholder management skills.
• Self-motivated, proactive, and able to work independently while managing multiple priorities.
• Willing to travel overseas and provide on-site support when required.

Added Advantage

• Experience administering IIS, Apache, or Nginx web servers.
• Knowledge of Microsoft SQL Server, Oracle, or other database platforms from a system administration perspective.
• Experience with Microsoft Azure or AWS cloud technologies.
• Experience in enterprise infrastructure security, high availability, and large-scale infrastructure environments.

Key Skills

Windows Server | Linux | VMware | Hyper-V | Active Directory | Group Policy | DNS | DHCP | PowerShell | Bash | SAN/NAS | Backup & Disaster Recovery | Networking | Infrastructure Security | Azure | AWS | Monitoring | Root Cause Analysis | Incident Management | Change Management