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 patchesProvide support for existing functionality and implement new featuresOptionally 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 teamRequirementsTo be successful in this role, you should have:Strong proficiency in C programming and exceptional debugging skillsExperience with Linux kernel core subsystemsExtensive experience with GDB and other debuggersBasic understanding of kernel ABI Proficiency in Git for development, patch management, and branch managementExceptional problem-solving and strategic thinking skillsStrong planning, time management, decision-making, presentation, and organizational abilitiesExperience automating routing tasks with AI tools Experience with Python and shell scriptingAbility to thrive in an agile, fast-paced environmentEnglish - upper-intermediate or higher - to ensure clear communication of progress within the teamNice to have:Expertise in CPU performance and power analysisIn-depth knowledge of CPU and cache architecturesBasic understanding of x86-64 Assembly (AT&T asm)Prior exposure to Jenkins BenefitsWhat'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 patentBy applying for this position, you consent to the processing of your personal data as described in our Privacy Policy (https://cloudlinux.com/candidate-privacy-notice), which provides detailed information on how we maintain and handle your data.
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
- 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
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
By applying for this position, you consent to the processing of your personal data as described in our Privacy Policy (https://cloudlinux.com/candidate-privacy-notice), which provides detailed information on how we maintain and handle your data.
CloudLinux is on a mission to make Linux secure, stable, and profitable. We have spent more than 500 combined years working on Linux, and are changing how hosting companies and data centers use this technology we love by bringing it to millions of their customers. With more than 500,000 product installations and 4,000 customers, including Liquid Web, 1&1, and Dell, CloudLinux combines in-depth technical knowledge of hosting, kernel development, and open source with unique client care expertise.CloudLinux team members are not tied to a physical office location, and everyone works remotely full-time. We provide flexible working hours and an open management style, to avoid unnecessary bureaucracy and excessive control while getting the best from our employees. This system allows each of us to fully realize our ideas and ambitions, while comfortably combining work with our usual lifestyles.
CloudLinux is on a mission to make Linux secure, stable, and profitable. We have spent more than 500 combined years working on Linux, and are changing how hosting companies and data centers use this technology we love by bringing it to millions of their customers. With more than 500,000 product installations and 4,000 customers, including Liquid Web, 1&1, and Dell, CloudLinux combines in-depth technical knowledge of hosting, kernel development, and open source with unique client care expertise.
CloudLinux team members are not tied to a physical office location, and everyone works remotely full-time. We provide flexible working hours and an open management style, to avoid unnecessary bureaucracy and excessive control while getting the best from our employees. This system allows each of us to fully realize our ideas and ambitions, while comfortably combining work with our usual lifestyles.
