C Developer – Linux Kernel Team

Virtuozzo

C developer working on Linux kernel subsystems for Virtuozzo, optimizing resource usage and collaborating with upstream maintainers. Focus on memory management, scheduling, networking, and filesystems.

Posted 7/10/2026contractRemote • 🇱🇹 LithuaniaMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong expertise in C Programming, Linux Kernel Subsystems, and resource optimization across virtual machines and containers. Proficient in debugging and collaborating with upstream maintainers while effectively communicating technical ideas in English.

Highest-signal resume keywords

C ProgrammingLinux Kernel SubsystemsDebugging with KprobesPython ScriptingContainer Technology

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

C ProgrammingKernel Subsystem KnowledgeDebuggingResource OptimizationContainer Isolation MechanismsSyscallsNamespacesCgroupsKVMPerformance Tuning

Soft Skills

Clear Communication

Tools & Technologies

KprobesFtracePerfGDBDevOps Pipelines

Industry Keywords

Linux KernelOpen SourceVirtual MachinesContainer TechnologyLinux Foundation

Tech Stack

Tools & technologies

LinuxOpen SourcePython

About the role

Key responsibilities & impact

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.

Requirements

What you’ll need

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.
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.
Familiarity with DevOps pipelines involving container tech or kernel builds.

Benefits

Comp & perks

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