Infrastructure engineer in virtualization

Mindtech is on the lookout for a Senior Infrastructure Engineer to join our Engineering Team.

• Operate and maintain Linux infrastructure based on Debian and Rocky Linux.
• Operate and maintain Proxmox VE clusters and virtual machines.
• Manage the full lifecycle of virtual machines, including provisioning, migration, upgrade, and decommissioning.
• Plan and perform Linux and Proxmox updates/upgrades, including major version upgrades.
• Plan and execute infrastructure maintenance activities in production environments.
• Manage VM/server backup and restore processes and validate recovery procedures.
• Troubleshoot infrastructure issues across compute, storage, operating systems, and networking.
• Automate repetitive operational tasks using Ansible and scripting.
• Participate in infrastructure migrations and production changes.
• Prepare change plans, validation steps, and rollback procedures for high-risk infrastructure changes.

• 5+ years of hands-on experience with Linux infrastructure.
• Strong knowledge of Debian / Rocky Linux.
• Hands-on production experience with Proxmox VE, KVM/QEMU and Proxmox clusters.
• Good understanding of cluster concepts including quorum, Corosync and failure scenarios.
• Strong practical experience with ZFS, including pools, datasets, snapshots, replication, disk replacement and failure recovery.
• Experience with VM migration and live migration.
• Experience performing Linux and Proxmox updates/upgrades.
• Strong Linux administration knowledge including systemd, package management, boot process, filesystems, LVM, RAID, mounts, permissions, SSH and sudo.
• Good understanding of Linux networking: TCP/IP, routing, VLANs, bonding, DNS, MTU and firewall basics.
• Hands-on experience with backup and restore, including recovery after VM or server failures.
• Understanding of backup, snapshot and replication concepts.
• Experience with Proxmox Backup Server or similar solutions.
• Practical experience with Ansible, Bash and Git.
• Strong troubleshooting skills for CPU, memory, disk I/O, filesystem and network issues.
• Strong ownership and responsibility.
• Careful approach to production changes.
• Ability to troubleshoot complex infrastructure issues independently.
• Good documentation and communication skills.
• Focus on automation, reliability and operational simplicity.
• Будет плюсом: Experience with shared or distributed storage systems, such as Ceph, SAN, iSCSI, NFS or similar solutions; Python; Monitoring systems such as Zabbix, Prometheus, VictoriaMetrics or Grafana; Experience with physical servers and data center hardware; Hardware RAID / HBA; IPMI / iDRAC / iLO; Experience participating in disaster recovery or infrastructure migration projects

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