C developer (Linux Kernel)

Virtuozzo isn’t just another virtualization company — we’re the original architects behind Linux namespaces and c groups .

We helped shape container technology well before it became the norm .

From kernel-space to userspace, we're deep into the Linux operating system — optimizing it to scale and isolate like a boss.

Now, we’re looking for a C developer to join our kernel team .

You’ll help push the limits of what Linux can do in large-scale virtual environments — and have fun doing it with people who love their jobs.

• 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.

• 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.
• We are a global remote team: You can communicate your ideas clearly in English, whether it's in a code review or a conference talk.

Nice to have

• 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.