Windows Kernel Developer jobs in United States
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Virtuozzo · 22 hours ago

Windows Kernel Developer

positionUnited States
timeFull-time
remoteRemote
seniorityMid, Senior Level

Virtuozzo is a pioneering virtualization company that specializes in container virtualization technology. They are seeking a Windows Kernel Developer to design and build new VirtIO drivers, enhance existing drivers, and collaborate with open-source communities to improve virtualization performance on Windows.

CleanTechCloud InfrastructureInformation Technology
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Senior Management

Responsibilities

Design & build new VirtIO drivers for emerging device classes
Turbo-charge existing drivers — storage, networking, anything that moves bits
Reverse-engineer Hyper-V paths to unlock enlightenments and squeeze every last cycle out of the hypervisor
Own Windows logo & certification pipelines (WHQL, SVVP, etc.) so “it just installs and works.”
Upstream & collaborate with open-source communities (VirtIO-Win, libguestfs, QEMU/KVM) — your patches help others
Share your wins at events that advance technology and creativity

Qualification

C programmingWindows kernel subsystemsWindows kernel debuggingReverse-engineeringUnix/Linux command-lineOpen-source contributionQEMU/KVM internalsDevOps knowledgePython scriptingEnglish communication

Required

Experienced
Strong C programming skills and a knack for writing clean, maintainable, low-level code
Solid grasp of at least one Windows kernel subsystem (networking or storage preferred)
Command-line comfort on Unix/Linux — you'll often test and script there
Fluency with Windows kernel debugging (WinDbg, KD, ETW, or your secret sauce)
Reverse-engineering chops — static/dynamic analysis doesn't scare you
Clear written & spoken English because we're a fully remote, globally distributed team

Preferred

Track record in open-source (GitHub, mailing-list posts, patchsets)
Familiarity with QEMU/KVM internals and how VirtIO works on the host side
DevOps know-how: CI pipelines, driver-signing automation, artifact delivery
Python scripting for build tooling, testing, or data crunching

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
Space for creativity and experimentation within the company’s goals
Supportive, engineering-driven culture with minimal bureaucracy
The chance to influence Core team and R&D 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 apply

Company

Virtuozzo

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Virtuozzo The scale and scope of a well-established business with the entrepreneurial energy and focus of a start-up.
dateFounded in 2015
location
Seattle, Washington, USA
people-size201-500 employees
web-link
https://virtuozzo.com/

Funding

Current Stage
Growth Stage

Leadership Team

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Itay Nebenzahl
Chief Financial Officer
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Mike Ryabichev
CFO&COO
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Recent News

IT Web
Reflex partners with Virtuozzo to launch cloud environment
2025-12-12
The Register
ZTE supports AI with full-stack IT offering
2025-06-21
PRLog
Voyager Replaces VMware with Virtuozzo to Regain Control of Cloud Infrastructure
2025-05-27
Company data provided by crunchbase