System Administrator
Summary
Systems Administrator maintaining and supporting the organization's IT infrastructure — servers, networks, user accounts, backups, and cloud services. Core technologies: Windows Server/Linux, Active Directory, TCP/IP networking, virtualization, and AWS.
Systems Administrator
Job Description
The Systems Administrator is responsible for maintaining, monitoring, and supporting the organization's IT systems and infrastructure to ensure the availability, security, reliability, and performance of business-critical services. This role manages servers, operating systems, user accounts, network devices, security tools, hardware, software, backups, and cloud infrastructure.
The Systems Administrator works closely with internal IT teams, help desk personnel, external vendors, and other stakeholders to troubleshoot technical issues, implement infrastructure improvements, support IT projects, and ensure the smooth operation and transition of new systems and enhancements into production.
Key Responsibilities
1. Systems and Infrastructure Administration
Install, configure, maintain, and troubleshoot servers, operating systems, desktop and laptop computers, printers, and other IT equipment.
Manage user accounts, groups, security permissions, Active Directory, Group Policy, and print services.
Monitor system performance, resource utilization, event logs, warnings, and errors to ensure systems operate efficiently.
Maintain and support network infrastructure, including routers, switches, firewalls, LAN, WAN, internet connectivity, intranet, and network segments.
Apply operating system patches, software updates, and security configurations in accordance with established policies and procedures.
2. Server Administration and Monitoring
Perform routine server administration, maintenance, configuration, and troubleshooting activities.
Monitor data center and server health using existing management and monitoring tools.
Investigate and resolve hardware, software, operating system, and system performance issues.
Assist in building, configuring, testing, deploying, and maintaining physical and virtual servers.
Monitor system resources and ensure infrastructure components work together reliably.
3. Technical Support and Incident Management
Provide technical support to the help desk and other IT teams in identifying and resolving system-related issues.
Perform root cause analysis and troubleshoot incidents affecting servers, applications, networks, and other IT services.
Respond to infrastructure alerts and hardware issues, escalating complex problems to appropriate technical teams or vendors.
Support business-critical systems and minimize service disruptions through proactive monitoring and preventive maintenance.
Document incidents, troubleshooting procedures, and resolutions for future reference.
4. Backup, Recovery, and Security
Perform routine and scheduled audits of IT systems, configurations, and backup procedures.
Monitor backup operations and verify the successful completion of scheduled backups.
Assist with disaster recovery, data restoration, and remote replication activities.
Implement security updates, access controls, and system hardening measures to protect IT resources.
Maintain compliance with internal IT policies, security requirements, and operational procedures.
5. Cloud and Virtualization Administration
Support cloud infrastructure and services, preferably using Amazon Web Services (AWS).
Assist in managing virtual machines, server resources, storage volumes, and infrastructure configurations.
Support virtualization platforms and troubleshoot issues involving distributed systems, storage, connectivity, and replication.
Monitor system capacity and performance and recommend improvements to infrastructure reliability and efficiency.
Assist with infrastructure deployment, migration, and integration activities as required.
6. IT Projects and Service Transition
Participate in IT projects, system upgrades, infrastructure enhancements, and technology initiatives.
Coordinate with internal teams and external partners to communicate project progress, technical activities, risks, and outcomes.
Prepare, maintain, and update Service Transition documentation to guide Technical Operations teams in supporting newly implemented systems and enhancements.
Ensure systems are properly tested, documented, and transitioned into operational support.
Identify opportunities to improve system administration processes, automate routine tasks, and enhance IT service delivery.
Required Qualifications and Skills
Bachelor's degree in Information Technology, Computer Science, Computer Engineering, or a related field, or equivalent practical experience.
Proven experience in systems administration, IT operations, server administration, or a related IT role.
Knowledge of Windows Server and/or Linux operating systems.
Experience with Active Directory, Group Policy, user and group management, and security permissions.
Working knowledge of networking concepts, including TCP/IP, LAN, WAN, routers, switches, firewalls, and network troubleshooting.
Familiarity with enterprise backup and recovery procedures, virtualization, and system performance monitoring tools.
Knowledge of server provisioning, storage volume management, remote replication, and distributed systems troubleshooting.
Familiarity with cloud computing platforms, preferably AWS.
Knowledge of programming or scripting languages for system administration and automation is an advantage.
Understanding of HTTP traffic, content delivery networks (CDNs), caching, and application integration is an advantage.
Strong analytical, troubleshooting, communication, documentation, and problem-solving skills.
Ability to manage multiple priorities and collaborate effectively with technical teams and business stakeholders.
Preferred Qualifications
Relevant certifications in Microsoft technologies, AWS, networking, virtualization, or systems administration.
Experience supporting enterprise IT environments and business-critical systems.
Familiarity with IT service management practices, incident management, change management, and service transition procedures.
Experience with infrastructure implementation, system migrations, upgrades, and operational improvements.