Sofia, Sofia City Province, Bulgaria Remote (Global)

CloudLinux is hiring a Kernel Developer (worldwide remote, work anywhere)

About the Role

We're looking for a skilled Kernel Developer to help extend the lifecycle of enterprise Linux distributions by backporting critical kernel patches across multiple versions and platforms. This role is central to maintaining system security and stability through precise, well-tested code changes.

What You'll Do

  • Backport upstream kernel patches to support a wide range of RPM and Debian-based distributions
  • Write, test, and debug low-level C code focused on security fixes and CVE resolution
  • Automate repetitive tasks using Python, Golang, or Bash to improve team velocity
  • Collaborate with engineering teams to integrate automation and AI-assisted development tools
  • Take long-term responsibility for kernel modules and patching workflows

What We Need

  • Strong proficiency in C and Linux kernel development, with demonstrated debugging experience
  • Familiarity with Git, GDB, and the GNU toolchain for patch management and analysis
  • Experience writing scripts in Python, Golang, or Shell for system automation
  • Upper-intermediate or higher English proficiency for documentation and collaboration

Nice to Have

  • Hands-on experience with QEMU, Docker, and Jenkins in development pipelines
  • Knowledge of Behavior Driven Development for test design
  • Exposure to AI-powered development tools
  • Background in core dump analysis and virtualization technologies

How We Support You

Work on your own schedule from anywhere in the world with full remote flexibility. We offer paid vacation, national holidays, and unlimited sick leave. Your health and growth matter—access private medical insurance reimbursement, co-working or gym support, and a dedicated education budget. Bring a breakthrough idea to life and you could earn a reward for a patentable innovation.

Our Culture

We believe in doing the right thing, putting people first, and building resilient infrastructure. As a remote-first team, we value ownership, collaboration, and openness to new technologies. If you're technically thorough, self-driven, and passionate about low-level systems, you'll thrive here.

Required Skills
CLinux kernelGNU toolchainGDBGitPythonGolangBashQEMUDockerKernel developmentDebuggingScriptingVersion controlAutomation CLinux kernelGNU toolchainGDBGitPythonGolangBashQEMUDockerKernel developmentDebuggingScriptingVersion controlAutomation
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About company
CloudLinux
CloudLinux is a global remote-first company that delivers high-volume, low-cost Linux infrastructure and security products to help companies increase operational efficiency.
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Posted a month ago