Infrastructure Engineer – Linux & Windows

Sapphire Consulting Services (Pvt) Ltd.; Karachi Division; On-site; PKR 1,800,000 - 3,000,000; Full time

Job summary

Sapphire Consulting Services (Pvt) Ltd. is seeking an Infrastructure Engineer to administer and maintain Linux/Windows servers, virtualization platforms, and storage solutions. You will monitor health, implement patches, and support DR activities while working with enterprise infrastructure.

You should have 2+ years of relevant experience, a related Bachelor's degree, and certifications are a plus. The role focuses on on-site operations and IT infrastructure support.

Qualifications

• Bachelor's degree in Computer Science, IT, Engineering or related field
• RHCSA/RHCE, Microsoft, VMware or Linux certifications are advantageous
• Minimum of two years of relevant experience

Responsibilities

• Install, configure, administer, and troubleshoot Linux servers and Windows servers
• Manage AD, DNS, DHCP and Group Policy
• Manage virtualization environments and perform VM provisioning and migration
• Administer SAN/NAS and enterprise storage
• Patch OS, security hardening and vulnerability remediation
• Monitor server health and troubleshoot incidents
• Support backup, DR activities and disaster recovery
• Support web infrastructure (Nginx, Apache, IIS) and maintain docs

Skills

Linux administration

Windows Server administration

Active Directory

DNS/DHCP / Group Policy

Virtualization (VMware/KVM/OLVM)

SAN/NAS storage concepts

Bash scripting

PowerShell scripting

Backup & disaster recovery

Monitoring & troubleshooting

Networking & information security

Education

Bachelor's degree in Computer Science, IT, Engineering

Job description

The Infrastructure Engineer will be responsible for administration, operation, monitoring, troubleshooting, and maintenance of Linux and Windows server environments, virtualization platforms, storage systems, and associated enterprise infrastructure.

Key Responsibilities

• Install, configure, administer, and troubleshoot Linux servers, including Red Hat, Oracle Linux, Ubuntu, and similar distributions.
• Manage Active Directory, DNS, DHCP, Group Policy, and related Windows services.
• Manage virtualization environments such as VMware and OLVM.
• Perform VM provisioning, cloning, migration, backup, recovery, and resource management.
• Administer SAN/NAS, NFS, iSCSI, LVM, RAID, multipath, and enterprise storage.
• Perform OS patching, upgrades, security hardening, and vulnerability remediation.
• Monitor CPU, memory, storage, services, and overall server health.
• Troubleshoot system, application, storage, and performance-related issues.
• Manage backup and disaster-recovery activities.
• Support web/application infrastructure including Nginx, Apache, and IIS.
• Maintain infrastructure documentation, configurations, SOPs, and inventory.
• Participate in planned maintenance and provide support for critical incidents.

Required/Preferred Skills

• Linux and Windows Server administration
• Active Directory, DNS, DHCP and Group Policy
• VMware/KVM/OLVM or equivalent virtualization
• SAN/NAS and enterprise storage concepts
• Bash and PowerShell scripting
• Backup and disaster recovery
• System monitoring and troubleshooting
• Basic networking and information-security knowledge

Minimum Qualifications and Experience:

• Bachelor's degree in Computer Science, IT, Engineering, or a related discipline. Relevant certifications such as RHCSA/RHCE, Microsoft, VMware, or Linux certifications will be an advantage.
• Minimum of two years of relevant experience

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