Kernel Developer (Linux)

TL;DR

Kernel Developer (Linux/C): Investigating upstream Linux kernel changes and backporting security fixes to enterprise kernels with an accent on patch stability and reproducibility. Focus on resolving version conflicts, building distribution packages, and optimizing validation workflows using automation and AI-assisted tools.

Location: Fully remote, available from any location worldwide

Company

hirify.global provides a comprehensive portfolio of security solutions for Linux and open-source software, including automated live patching via the KernelCare product.

What you will do

• Investigate upstream security and bug fixes to identify their dependencies.
• Backport Linux kernel patches to older RPM- and Debian-based distributions.
• Resolve conflicts caused by differences between upstream and target kernel versions.
• Build and rebuild kernel source and binary packages in reproducible environments.
• Validate patched kernels through focused tests, build checks, and regression analysis.
• Improve patch preparation, build, and validation workflows using Python, Go, or Shell.

Requirements

• Strong C programming and Linux debugging skills.
• Practical Linux kernel development, patching, or backporting experience.
• Confident use of Git, GNU build tools, and standard Linux development utilities.
• Experience building Linux kernels or distribution packages.
• Automation experience with Python, Go, Shell, or a similar language.
• English: Intermediate level (B1) or higher required.

Nice to have

• Experience with RPM/SRPM or Debian kernel packaging.
• Security patching, CVE analysis, or extended lifecycle maintenance experience.
• Familiarity with Docker, QEMU, Jenkins, or other CI systems.
• Experience designing kernel tests or investigating core dumps and regressions.

Culture & Benefits

• Fully remote work with flexible working hours and worldwide availability.
• Paid 24 days of vacation per year and 10 national holidays.
• Unlimited sick leaves and compensation for private medical insurance.
• Reimbursement for co-working spaces, gym, and sports.
• Dedicated budget for professional education.
• Opportunity to receive rewards for patentable innovative ideas.