IT Administrator Job Description: Role, Duties and Requirements

An IT Administrator ensures the reliable operation, availability and security of an organisation's IT infrastructure. This role is suitable for candidates with hands on experience in systems and network administration, a methodical approach to problem solving and the ability to prioritise user support and maintenance tasks.

IT Administrator Job Profile

The IT Administrator role provides day to day management of servers, networks, endpoints and related services to support business operations. The postholder will monitor system performance, apply updates, administer user accounts and maintain backups to reduce downtime and protect data.

The purpose of the role is to deliver stable, secure and documented IT services, respond to incidents and requests promptly, and contribute to continual improvement of infrastructure reliability and operational practices.

IT Administrator Job Description

The IT Administrator is responsible for routine maintenance, configuration and reliable operation of systems and network components. The role requires responding to user incidents and service requests, performing system health checks, applying patches and updates, and maintaining backup and recovery procedures. The postholder will ensure changes are documented and follow agreed change control and incident management processes.

Work is carried out in an operational IT environment with regular interaction across teams and stakeholders. The role may involve on call duties outside normal hours for incident response, participation in project work to implement upgrades or new services, and vendor liaison for equipment or service support.

IT Administrator: Duties and Responsibilities

• Monitor and maintain the performance and availability of servers, network devices and core services.
• Respond to and resolve incidents and service requests from end users in a timely manner.
• Manage user accounts, permissions and access controls in accordance with organisational policy.
• Perform routine backups, verify restore procedures and maintain disaster recovery readiness.
• Apply patches and updates to systems and firmware following approval and scheduled windows.
• Maintain hardware and software inventories and manage asset lifecycle tasks.
• Implement and monitor security controls to protect systems and data against unauthorised access.
• Document system configurations, standard operating procedures and incident resolutions.
• Assist with network configuration and troubleshooting to ensure connectivity and performance.
• Support deployment and configuration of desktop and mobile devices and related services.
• Coordinate with third party suppliers and service providers for maintenance and fault resolution.
• Participate in change management activities and carry out planned maintenance with minimal service interruption.
• Analyse system logs and alerts to identify underlying issues and recommend improvements.
• Provide training and guidance to users on IT procedures, security awareness and best practice.

IT Administrator: Requirements and Qualifications

• Bachelor's degree or equivalent qualification in information technology, computer science or a related discipline, or demonstrable practical experience.
• Minimum of two years' experience in a systems or network administration role within an organisational IT environment.
• Practical knowledge of server and desktop operating systems, networking fundamentals and storage concepts.
• Experience with backup and disaster recovery processes and verification of restorability.
• Understanding of security principles including access control, patch management and incident response.
• Strong troubleshooting skills and ability to diagnose hardware and software faults methodically.
• Good communication skills and the ability to provide clear technical guidance to non technical users.
• Ability to prioritise tasks, manage workload and respond effectively to urgent incidents.
• Experience documenting procedures, configurations and maintaining up to date technical records.
• Familiarity with change management and IT service management concepts.
• Willingness to participate in on call rota and to work outside normal hours when necessary.
• Relevant industry certifications or evidence of continuous professional development will be an advantage.