[Hiring] C developer @Virtuozzo

Role Description

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.
• Represent Virtuozzo at professional conferences, such as Open Source Summit, FOSDEM, and other Linux Foundation events.

Qualifications

• 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 ideas clearly in English, whether in a code review or a conference talk.

Requirements

• 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.

Benefits

• Flexible hours and remote work options.
• Share Options - everyone shares in our success with share options.
• We help our team get private medical insurance.
• Employee recognition programs and reward systems.
• Space for creativity and experimentation within the company’s goals.
• Supportive, engineering-driven culture with minimal bureaucracy.
• The chance to influence Core team decisions from day one.
• A smart, friendly team that values reliability, simplicity, and automation.
• Depending on your location and preferred employment method, other perks and benefits may apply.