| Detail | For this role |
|---|---|
| Department | Information Technology |
| Level | Entry level |
| Reports to | IT Infrastructure Manager |
| Direct reports | None |
| Experience | Fresher or up to 3 years in system administration |
System Administrator job description template
Copy this job description, replace the text in square brackets and post it on your careers page or a job portal.
Job title: System Administrator
Department: Information Technology
Reports to: IT Infrastructure Manager
Location: [City], [office, branch or site]
About the role
A System Administrator installs, configures and maintains the servers, operating systems and core services that a company depends on, often across Windows and Linux. At the entry level they manage user accounts, servers, backups and basic security under senior guidance. A good system administrator keeps servers available, patches them on time and recovers services quickly after a problem. The role sits in the IT infrastructure team and reports to an infrastructure lead or IT manager, and is a strong base for cloud, DevOps and specialised infrastructure careers.
Key responsibilities
- Install, configure and patch Windows and Linux servers and the services they run.
- Manage user accounts, groups and permissions through Active Directory and other tools.
- Configure and verify backups and test restores on a regular schedule.
- Monitor server health, disk, memory and services and act on alerts early.
- Apply security updates and basic hardening across servers and systems.
- Manage file shares, print services, email and other core infrastructure services.
- Support virtualisation hosts and virtual machines under senior guidance.
- Troubleshoot server and service issues methodically and record the resolution.
- Support new server and application setups with the right configuration.
- Document server configuration, procedures and changes for the team.
Requirements
- Graduate or diploma in computer science, IT or electronics
- Certification such as MCSA, RHCSA or an equivalent is an advantage
- Knowledge of servers, Active Directory and networking
- Fresher or up to 3 years in system administration
KRAs and KPIs for a System Administrator
Key result areas for the appraisal form, each with a KPI you can measure every month or quarter.
| Key result area | How to measure it |
|---|---|
| Server uptime | Managed servers kept available to the agreed service level |
| Patch compliance | Security patches applied within the agreed cycle |
| Backup assurance | Backups succeed and restore tests pass on schedule |
| Account management | Access requests and changes completed within the agreed time |
| Incident handling | Server incidents resolved within the agreed time |
| Security hygiene | No incident caused by an unpatched or misconfigured server |
Skills and tools
Tools used day to day: Windows Server, Active Directory, Linux, Backup software, Virtualisation platform, Monitoring tools.
Reporting line and career path
Next roles: Senior System Administrator, DevOps Engineer, Infrastructure Architect
Interview questions for a System Administrator
- What is Active Directory and what is it used for?
- How do you plan and test a backup so you trust the restore?
- How do you patch servers without causing downtime?
- A server is running out of disk space. How do you handle it?
- What is the difference between a file share permission and a folder permission?
- How do you troubleshoot a service that keeps stopping?
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What does a system administrator do?
A system administrator installs, configures and maintains the servers, operating systems and core services a company depends on, often across Windows and Linux. They manage user accounts, backups, patches and security, monitor server health and recover services after problems. They keep the infrastructure available and are often the backbone of a company's IT operations.
What is the difference between a system administrator and a network administrator?
A system administrator manages servers, operating systems, accounts and core services. A network administrator manages connectivity: switches, routers, WiFi and links. They work closely, since servers rely on the network, and in small companies one person does both. As companies grow, the roles separate so each area gets proper depth.
Is system administration a good career in India?
Yes. Every company with servers needs system administrators, and the skills form a strong base for higher paying cloud, DevOps and infrastructure roles. Learning Windows Server, Linux, Active Directory, backups and virtualisation gives you a solid start. Administrators who add cloud and automation skills keep growing as infrastructure moves toward the cloud.