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Salary
≈ $29k – $63k per year (Estimated)
Location
In office (Indore, Kolkata)
Seniority
Senior · 7+ years exp

First seen by Alion on Sep 24, 2026.

Overview
Company
Impact
Profile match
Calsoft provides product engineering services for storage, networking and virtualisation companies. Its engineers work on systems software, drivers and cloud infrastructure products. Technology vendors use it as an extended research and development team.

Job Description :

We are looking for a Virtualization & K3s Engineer with strong hands-on experience in Linux virtualization, QEMU/KVM, libvirt, VirtIO, and Kubernetes/K3s. The role involves building, automating, operating, and troubleshooting VM-based infrastructure and lightweight Kubernetes environments.

Key Responsibilities :

- Design, deploy, and manage VM-based infrastructure using QEMU/KVM and libvirt.

- Create and manage VM lifecycle operations including provisioning, configuration, networking, storage, monitoring, and troubleshooting.

- Configure and troubleshoot VM networking, bridges, VLANs, virtual interfaces, and network connectivity.

- Deploy and operate K3s/Kubernetes clusters in VM-based environments.

- Automate VM and K3s provisioning and operational workflows using Python, Bash, Terraform, or similar tools.

- Troubleshoot issues across VM, hypervisor, Linux, networking, and Kubernetes layers.

Mandatory Skills :

- Strong fundamentals in Linux and Virtualization.

- Hands-on experience with QEMU/KVM and libvirt.

- Experience with Kubernetes / K3s deployment and operations.

- Hands-on knowledge of VM Networking / Linux Networking.

- Experience with infrastructure automation using Python, Bash, Terraform, or similar tools.

Preferred Candidate Profile :

- 7 - 10 years of overall experience in infrastructure, virtualization, Linux, or related engineering roles.

- Strong hands-on experience with production-grade QEMU/KVM + libvirt environments.

- Experience operating K3s/Kubernetes in platform engineering environments.

- Immediate joiners preferred.

Skills

Virtualization, Kubernetes, Linux, QEMU, VLAN, VMware, Python

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