Kernel Developer (worldwide remote, work anywhere)

CloudLinux is a global, remote-first company. We are driven by our principles: Do the right thing, employees first, we are remote first, and we deliver high-volume, low-cost Linux infrastructure and security products that help companies to increase the efficiency of their operations. Every person on our team supports each other and does what we can to ensure we are all successful.

We are seeking a passionate ELS Kernel Developer to join our KernelCare team, where you'll be responsible for extending the lifecycle of enterprise Linux distributions through expert kernel patch backporting and automation.

CloudLinux Inc., the maker of the #1 OS for web hosting providers, serves over 50,000 production servers and 40 million websites worldwide. Our KernelCare product provides a live kernel patching service that delivers security patches and bug fixes for popular Linux kernels without requiring system reboots.

Ready to join our remote-first culture and make an impact on enterprise Linux infrastructure? Visit to learn more about our company.

What Makes This Role Unique:

• Innovation Focus: Work with cutting-edge AI tools and automation-first development practices
• Enterprise Impact: Manage kernel support for enterprise-scale Linux distributions
• Collaborative Environment: Partner with specialized automation and AI teams
• Technical Growth: Deep expertise development in Extended Lifecycle Support and patch backporting

As our ELS Kernel Developer, you will be responsible for:

• Extended Lifecycle Support: Backport upstream patches to an extensive range of kernel versions across RPM and Debian-based distributions
• Kernel Development: Develop and debug Linux kernel code with a focus on security fixes and CVE patches
• Process Automation: Create and maintain Python/Golang/Bash scripts to automate regular tasks and improve team efficiency
• Cross-Team Collaboration: Work closely with automation and AI tooling teams to enhance development workflows
• Long-Term Ownership: Take ownership of projects and maintain them over extended periods

To be successful in this role, you should have:

• Excellent C programming and debugging skills with hands-on Linux kernel development experience
• Proficiency with GNU toolchain, GDB, and Git for development and patch management
• Scripting experience in Python, Golang, Shell, or similar languages for automation

Nice to have:

• Experience with QEMU, Docker, and Jenkins workflows
• Knowledge of BDD (Behavior Driven Development) for testing
• Experience with AI tools for development acceleration
• Core dump analysis and virtualization technologies experience

Professional Qualities:

• Team player and collaborative mindset
• Willing to learn and adapt to new technologies
• Open to innovative approaches and tools
• Strong sense of ownership with examples of long-term project maintenance

What's in it for you?

• A focus on professional development.
• Interesting and challenging projects.
• Fully remote work with flexible working hours, which allows you to schedule your day and work from any location worldwide.
• Paid 24 days of vacation per year, 10 days of national holidays, and unlimited sick leaves.
• Compensation for private medical insurance.
• Co-working and gym/sports reimbursement.
• Budget for education.
• The opportunity to receive a reward for the most innovative idea that the company can patent.

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