C developer for Linux Kernel team

Virtuozzo

13d•Remote

About The Position

Virtuozzo is looking for a C developer to join their kernel team. The role involves working on core Linux kernel subsystems, optimizing container isolation mechanisms, and improving Linux scalability in large-scale virtual environments. The company is a leader in virtualization technology, having been the original architects of Linux namespaces and cgroups.

Requirements

Strong C programming skills — the closer to the metal, the better.
Know your way around at least one kernel subsystem.
Comfortable with syscalls, kernel/user-space interfaces, and how Linux works under the hood.
Debugging experience using kprobes, ftrace, perf, gdb, or whatever else helps squash the bug.
Ability to communicate your ideas clearly in English, whether it's in a code review or a conference talk.

Nice To Haves

Past work on open-source projects (got a GitHub or a LKML link? We’d love to see it).
Deep knowledge of namespaces, cgroups, or KVM.
Python scripting for tooling, automation, or test harnesses.
Familiarity with DevOps pipelines involving container tech or kernel builds.

Responsibilities

Work on core Linux kernel subsystems — including memory management, scheduling, networking, and filesystems.
Tweak and tune container isolation mechanisms until they’re practically airtight.
Help Linux scale harder, faster, stronger.
Optimize resource usage across thousands of virtual machines and containers.
Collaborate with upstream maintainers to merge your patches into the kernel.
Representing Virtuozzo at professional conferences, such as Open Source Summit, FOSDEM, and other Linux Foundation events.