We are looking for a Linux System Administrator with basic experience in server administration, website/domain/email migration, virtualization, networking, and security infrastructure support.

Responsibilities:

- Assist in migrating websites, domains, databases, and email accounts across Linux/Windows servers.

- Install, configure, monitor, and troubleshoot Linux servers (Ubuntu, CentOS, Debian).

- Manage users, permissions, services, backups, and system performance.

- Support virtualization platforms including Proxmox VE, KVM, VMware, and VirtualBox.

- Create, migrate, backup, and restore VMs and LXC containers.

- Assist with Proxmox cluster, storage, snapshots, and HA configurations.

- Support OPNsense firewall setup, rules, NAT, VPN, VLAN, DHCP, DNS, and security configurations.

- Troubleshoot network, server, VPN, and connectivity issues.

- Manage, configure, and maintain IP-based CCTV systems, network infrastructure, and physical security storage solutions.

- Assist with cloud platforms (AWS/Google Cloud) and basic security practices.

- Maintain documentation and support infrastructure upgrades.

- Manage virtualization platforms including Proxmox VE , KVM, VMware, and VirtualBox.

- Create, manage, migrate, back up,



and restore virtual machines (VMs) and Linux containers (LXC) in Proxmox environments.

- Configure and maintain Proxmox clusters, shared storage, snapshots, high availability (HA), and backup solutions.

- Install, configure, and maintain OPNsense firewalls, including firewall rules, NAT, VPNs (OpenVPN/IPsec/WireGuard), VLANs, DHCP, DNS, IDS/IPS, and network security policies.

- Monitor and troubleshoot network connectivity, firewall performance, VPN tunnels, and internet connectivity using OPNsense.

- Perform firmware upgrades, backup and restore OPNsense configurations, and maintain high availability where applicable.

Requirements:

- 6 months – 1 year of experience in Linux administration.

- Basic knowledge of Linux commands, shell scripting, and system troubleshooting.

- Understanding of networking concepts (TCP/IP, DNS, DHCP, VLANs).

- Basic knowledge of virtualization and firewall technologies.

- Familiarity with server migrations, hosting environments, and CCTV/network security systems.

- Positive troubleshooting and communication skills.

- Willingness to learn and grow in system administration.

Work Location: In person

📌 Linux System Administrator (Kochi)
🏢 Techrish Solutions
📍 Kochi