Linux Server Administrator – Proxmox & Virtualization Specialist

  • Job Id - LBA287
  • Exp - 1 - 2 years
  • Hybrid
  • 40000 INR (Per Month)
  • No. of openings -
  • Notice Period - Immediate Joiners

Overview

We are looking for a Linux Server Administrator to join our team supporting global operations in Data Analytics, Cloud Managed Services/Deployments, Containerization, IoT Engineering, IT Automation/DevOps, and Security Operations Centers. The ideal candidate will have hands-on experience with Linux OS, virtualization (Proxmox), networking, troubleshooting, and system maintenance.

Job Description

    • Install, configure, and maintain Linux servers (Debian, Ubuntu, CentOS, RHEL, Fedora, etc.)

    • Manage user accounts, permissions, and security policies.

    • Set up and maintain virtualization environments using Proxmox VE.

    • Perform regular system monitoring, backups, and disaster recovery operations.

    • Configure and troubleshoot network services (DNS, DHCP, NAT, VPN, VLANs).

    • Integrate and manage CDNs and DNS-level services for optimized content delivery.

    • Conduct hardware diagnostics and coordinate with onsite staff for replacements and upgrades.

    • Maintain documentation for system configurations, processes, and procedures.

    • Utilize monitoring tools like Zabbix, Nagios, Prometheus, and Grafana to ensure system health and performance.

    • Implement server hardening and security best practices.

    Required Skills and Competencies

    1. Operating System (OS) Management – Installation & Configuration

    • Installation of all major Linux distributions (Debian, Ubuntu, CentOS, RHEL, Fedora, SUSE, Arch).

    • Partitioning, file systems (ext4, XFS, Btrfs, ZFS).

    • Package management (APT, YUM/DNF, Zypper, Pacman).

    • System initialization (systemd, init.d).

    • User & Permission Management:

      • User/group management.

      • Sudoers and access control.

      • File ownership, ACLs, SELinux/AppArmor.

    2. Virtualization & Hosting

    • Proxmox Basics.

    • Installation & configuration of Proxmox VE.

    • Creating, managing, and monitoring KVM virtual machines & LXC containers.

    • Backup/restore strategies in Proxmox.

    • Networking and storage integration (Ceph, ZFS, NFS, iSCSI).

    • Help Desk: WHMCS

    3. Networking Fundamentals

    • Network Basics.

    • TCP/IP, DNS, DHCP, NAT, VLANs, VPNs.

    • IP addressing, subnetting, and routing.

    • Firewall management (iptables, nftables, firewalld, ufw).

    • Network troubleshooting (ping, traceroute, netstat, ss, tcpdump, nmap).

    • Content Delivery Networks (CDN):

      • Understanding CDN concepts and providers.

      • Integration of websites and services with CDN.

      • DNS-level configuration for CDN.

    4. Troubleshooting & Maintenance

    OS-Level Troubleshooting

    • Boot and GRUB issues.

    • Service failures (systemctl, journalctl).

    • Resource issues (CPU, memory, I/O bottlenecks).

    • Log analysis (/var/log, rsyslog, journald).

    Hardware-Level Troubleshooting

    • Disk failures (SMART monitoring, RAID management).

    • Network interface failures.

    • Memory and CPU diagnostics.

    • Remote management tools (iLO, iDRAC, IPMI).

    Onsite Tech Handling

    • Coordinating with onsite staff for physical interventions.

    • Clear instructions for cabling, hardware replacement, and device setup.

    • Escalation procedures and documentation.

    5. Additional Skills

    Monitoring & Security

    • Monitoring tools (Nagios, Zabbix, Prometheus, Grafana).

    • Hardening servers (firewall, SSH config, patching).

Skills & Requirements

Linux (Debian, Ubuntu, CentOS, RHEL, Fedora, SUSE, Arch), Proxmox VE, KVM Virtual Machines, LXC Containers, Ceph, ZFS, NFS, iSCSI, WHMCS, TCP/IP, DNS, DHCP, NAT, VLANs, VPNs, IP Addressing, Subnetting, Routing, iptables, nftables, firewalld, ufw, Network Troubleshooting (ping, traceroute, netstat, ss, tcpdump, nmap), CDN Integration, OS Troubleshooting (boot/GRUB, service failures, resource bottlenecks, log analysis), Hardware Diagnostics (disk, network interface, memory/CPU), Remote Management Tools (iLO, iDRAC, IPMI), Monitoring Tools (Nagios, Zabbix, Prometheus, Grafana), Server Hardening, SSH Configuration, Patch Management, Security Best Practices

 
 

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