Kernel Developer

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.

At KernelCare, our product provides live kernel patching services that deliver security patches and bug fixes for a variety of popular Linux kernels, all without the need for system reboots. We are proud to be a part of CloudLinux Inc., the provider of the #1 OS in security and stability for hosting providers. For more information about our KernelCare Product, please visit our website: https://tuxcare.com/live-patching-services/

We are seeking experienced Kernel Developers to join our talented team at KernelCare. If you are passionate about Linux and enjoy the challenge of developing Linux Kernels and patches, then this is the perfect opportunity for you. As a Kernel Developer, you will utilize your strong C development skills and passion for Linux to create patches with a strong focus on cybersecurity. This role offers a rewarding and stimulating career where you can find solutions for our valued customers.

As a Kernel Developer, you will have several key responsibilities:

• Ensure the timely update of existing kernels with security fixes and CVEs patches
• Provide support for existing functionality and implement new features
• Optionally assist with automation by creating Python and Bash scripts (e.g., for testing CVE patches), while the main responsibility for automation lies with a dedicated team
  
  
  

Requirements


To be successful in this role, you should have:

• Strong proficiency in C programming and exceptional debugging skills
• Experience with Linux kernel core subsystems
• Extensive experience with GDB and other debuggers
• Basic understanding of kernel ABI

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• Proficiency in Git for development, patch management, and branch management
• Exceptional problem-solving and strategic thinking skills
• Strong planning, time management, decision-making, presentation, and organizational abilities
• Experience automating routing tasks with AI tools
• Experience with Python and shell scripting
• Ability to thrive in an agile, fast-paced environment
• English - upper-intermediate or higher - to ensure clear communication of progress within the team
  
  
  

Nice to have:

• Expertise in CPU performance and power analysis
• In-depth knowledge of CPU and cache architectures
• Basic understanding of x86-64 Assembly (AT&T asm)
• Prior exposure to Jenkins
  
  

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Benefits


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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