| Detail | For this role |
|---|---|
| Department | Information Technology |
| Level | Mid level |
| Reports to | Infrastructure Manager |
| Direct reports | None |
| Experience | 3 to 6 years in server, virtualization or data centre support |
Infrastructure Engineer 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: Infrastructure Engineer
Department: Information Technology
Reports to: Infrastructure Manager
Location: [City], [office, branch or site]
About the role
An Infrastructure Engineer builds and maintains the servers, virtualization, storage, network links and backup systems that business applications run on. They install and patch servers, create virtual machines, configure storage and backups, monitor health and fix issues escalated from the helpdesk or monitoring tools. The role reports to the infrastructure manager in mid-sized companies, BPOs, data centres and IT services firms. A good Infrastructure Engineer keeps systems patched and documented, fixes causes rather than symptoms and never skips a change record.
Key responsibilities
- Install and configure physical and virtual Windows and Linux servers to the company's build standards.
- Create and manage virtual machines, templates and resource pools on VMware or Hyper-V.
- Allocate storage, manage LUNs and file shares, and track capacity on SAN and NAS systems.
- Check backup jobs every morning, rerun failures and carry out restores on request.
- Apply monthly operating system and firmware patches in the approved windows.
- Watch server health, disk, memory and service alerts, and resolve or escalate them within SLA.
- Manage Active Directory, DNS, DHCP and group policies for the domain.
- Raise a change record for every change, and update the CMDB and diagrams afterwards.
- Work with OEM and AMC engineers on hardware faults, parts replacement and firmware bugs.
- Support data centre work such as rack installs, cabling, decommissioning and DR tests.
Requirements
- B.E., B.Tech, B.Sc IT or a diploma in computer engineering
- Azure Administrator, RHCSA or VCP-DCV certification is an advantage
- 3 to 6 years in server, virtualization or data centre support
KRAs and KPIs for a Infrastructure Engineer
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 |
|---|---|
| Incident resolution | At least 95 percent of infrastructure tickets resolved within SLA each month |
| Patching | Assigned servers patched within the monthly patch window, with exceptions documented |
| Backup success | Failed backup jobs rerun or escalated the same day, with daily success above 98 percent |
| Change discipline | Every change made under an approved change record, with the CMDB updated within 2 days |
| Build quality | New servers pass the build checklist and security baseline before handover |
| Documentation | Runbooks for every system the engineer owns reviewed each quarter |
Skills and tools
Tools used day to day: VMware vCenter, Windows Server, Red Hat or Ubuntu Linux, Veeam Backup, Active Directory tools, Zabbix or PRTG, ServiceNow or ManageEngine.
Reporting line and career path
Next roles: Infrastructure Manager, Cloud Engineer, VMware Administrator
Interview questions for a Infrastructure Engineer
- A virtual machine is slow even though the host looks fine. Where do you look?
- Walk me through restoring a deleted folder from last week's backup.
- How do you patch a two-node cluster without downtime?
- Users in one branch cannot log in to the domain. What do you check?
- What goes into a change record for a server reboot?
- How would you automate a daily health check across 100 servers?
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What does an infrastructure engineer do?
An infrastructure engineer builds and maintains the servers, virtualization, storage, backups and core network services that applications run on. They install and patch servers, create virtual machines, manage storage and Active Directory, check backups, respond to alerts and work with hardware vendors, logging and documenting every change.
What is the difference between an infrastructure engineer and a system administrator?
The roles overlap. A system administrator usually manages servers, users and services for an office or company. An infrastructure engineer tends to work at a larger scale, covering virtualization clusters, storage, backups and data centre work as well as servers. Many infrastructure engineers start out as system administrators.
Which certifications help an infrastructure engineer?
Useful certifications include RHCSA for Linux, Microsoft Azure Administrator for Windows and hybrid work, VCP-DCV for VMware and CCNA for networking. Pick one or two that match the platforms you already use. Employers in India also ask about practical exposure to backups, patching and ITIL processes.