CloudLinux is a global, remote-first company, the maker of the #1 OS for web hosting providers that powers over 80,000 production servers and 50 million websites worldwide. 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.

KernelCare product provides a live kernel patching service that delivers security patches and bug fixes for popular Linux kernels without requiring system reboots. Check out our website for more information: .

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.

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 distributionsKernel Development: Develop and debug Linux kernel code with a focus on security fixes and CVE patchesProcess Automation: Create and maintain Python/Golang/Bash scripts to automate regular tasks and improve team efficiencyCross-Team Collaboration: Work closely with automation and AI tooling teams to enhance development workflowsLong-Term Ownership: Take ownership of projects and maintain them over extended periods

Requirements

To be successful in this role, you should have:

Excellent C programming and debugging skills with hands-on Linux kernel development experienceProficiency with the GNU toolchain, GDB, and Git for development and patch managementScripting experience in Python, Golang, Shell, or similar languages for automationAt least upper-intermediate level of English

Nice to have:

Experience with QEMU, Docker, and Jenkins workflowsKnowledge of BDD (Behavior Driven Development) for testingExperience with AI tools for development accelerationCore dump analysis and virtualization technologies experience

Professional Qualities:

Team player and collaborative mindsetWilling to learn and adapt to new technologiesOpen to innovative approaches and toolsStrong sense of ownership with examples of long-term project maintenance

Benefits

What's in it for you?

A focus on professional developmentInteresting and challenging projectsFully remote work with flexible working hours, which allows you to schedule your day and work from any location worldwidePaid 24 days of vacation per year, 10 days of national holidays, and unlimited sick leavesCompensation for private medical insuranceCo-working and gym/sports reimbursementBudget for educationThe opportunity to receive a reward for the most innovative idea that the company can patent

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