Systems Administrator

2 days ago

Singapore TOPPAN NEXT TECH PTE. LTD. Full time

The Systems Administrator is responsible for the installation, configuration, maintenance, and reliable operation of computer systems, servers, and networks, with a strong emphasis on security and compliance in today's evolving threat landscape. This role ensures uptime, performance, resource availability, and robust protection of the IT infrastructure that supports business operations.
Key Responsibilities
Infrastructure Management
Install, configure, and maintain physical and virtual servers, networking, firewall, operating systems (Windows and Linux), and enterprise software applications
Manage Active Directory, DNS, DHCP, file servers, print servers, and Office 365 environments
Perform regular system backups, recovery, and disaster recovery testing
Coordinate with vendors for hardware/software procurement, licensing, and support
Security & Compliance
Implement and maintain IT security protocols, including firewalls, intrusion detection/prevention systems, antivirus, and endpoint protection
Perform regular patch management for operating systems, applications, and firmware
Conduct vulnerability assessments, risk analysis, and security audits in alignment with frameworks such as CISSP domains, NIST, and ISO 27001
Enforce identity and access management best practices by applying the principles of least privilege and zero trust
Maintain security documentation, incident logs, and compliance reports
Monitoring & Incident Response
Use system monitoring and SIEM tools to track system health, performance, and security events, if any
Troubleshoot and resolve escalated hardware, software, and network issues promptly
Lead disaster recovery and business continuity planning, testing, and execution
User & Access Management
Manage user accounts, group policies, and access rights across systems and applications
Provide escalation-level support to internal teams, ensuring security policies are consistently applied
Documentation & Process Improvement
Keep detailed records of configurations, procedures, and change management activities
Recommend and implement process improvements to enhance performance, security, and resilience
Qualifications & Skills
Bachelor's degree in Computer Science, Information Technology, or a related field
Professional certification preferred: CCNA, CISSP, Microsoft Certified: Windows Server, CompTIA Security+, or equivalent
3-5 years of experience in systems administration or IT infrastructure support
Strong knowledge of Windows and/or Linux server environments
Experience with cybersecurity tools, vulnerability management, and incident response
Excellent troubleshooting, problem-solving, and multitasking abilities
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