Server Administrator

Role & responsibilities

1. Server Administration

• Lead enterprise-level on-premises and hybrid server operations, ensuring uptime, performance, and scalability.
• Manage and administer Windows Server (2016/2019/2022/2025) and Active Directory environments, including:
• Domain & forest design, replication, and DNS/DHCP management.
• Group Policy Objects (GPOs), role-based access control, AD Certificate Services (ADCS), ADFS.
• Integration with Azure AD, Microsoft 365, and hybrid identity (Azure AD Connect).
• Maintain and secure file, print, and application servers.
• Implement and manage backup, restore, and disaster recovery strategies.

2. Linux Administration (Primary Focus)

• Administer and secure multi-flavour Linux systems including:
• Red Hat Enterprise Linux (RHEL), CentOS, Rocky Linux, Ubuntu, Debian, SUSE, Oracle Linux.
• Configure services: SSH, NFS, Samba, Apache/Nginx, Postfix, firewalld, SELinux, LVM.
• Manage patching, package repositories, and configuration automation with Red Hat Satellite or equivalent.
• Implement OS-level hardening and compliance with CIS/NIST standards.

3. Virtualization & Containerization

• Manage and optimize virtualization platforms: VMware vSphere/ESXi, Microsoft Hyper-V, RHV, KVM, Citrix, XenServer.
• Deploy and manage Red Hat OpenShift Virtualization (KubeVirt) for running VM workloads on Kubernetes.
• Administer containerized environments using Docker, Podman, Kubernetes, and OpenShift.
• Integrate with Red Hat Ansible Automation Platform for configuration and lifecycle management.

4. Storage, Backup & Disaster Recovery

• Administer enterprise storage systems: SAN, NAS, iSCSI.
• Maintain backup and recovery solutions.
• Develop and document disaster recovery and business continuity plans.

5. Automation, Monitoring & Security

• Automate operational tasks using PowerShell, Bash, Python, Ansible, or Terraform.
• Deploy and manage infrastructure monitoring systems: Zabbix, Nagios, Prometheus, Grafana, Red Hat Insights.
• Implement patch management, vulnerability mitigation, and system hardening processes.

6. Leadership & Collaboration

• Serve as Tier-3 technical expert for escalations related to AD, servers, and virtualization.
• Mentor junior administrators and lead cross-functional infrastructure projects.
• Collaborate with networking, security, and DevOps teams for seamless operations.
• Maintain comprehensive documentation and change control processes.

Preferred candidate profile

Windows Server Administration: Advanced skills in Active Directory, Group Policy, DNS/DHCP, ADCS, ADFS, hybrid identity.

• Linux Systems: Administration of RHEL, CentOS/Rocky/AlmaLinux, Ubuntu, Debian, SUSE, Oracle Linux.
• Virtualization: VMware vSphere/ESXi, Hyper-V, RHV, KVM, Citrix, XenServer, and Red Hat OpenShift Virtualization (KubeVirt).
• Containerization: Docker, Podman, Kubernetes, OpenShift.
• Storage & Backup: SAN/NAS, iSCSI
• Automation & Scripting: Bash, Python, PowerShell, Ansible, Terraform, Puppet/Chef.
• Monitoring: Zabbix, Nagios, Prometheus, Grafana, Red Hat Satellite/Insights.
• Networking & Security: VLANs, routing, firewalls, load balancing, SSL, VPN, QoS.
• Cloud Integration: AWS, Azure, GCP (hybrid deployments).
• SQL SERVER