Remote Senior Kernel Support Engineer - Live Patch & Sev1 Expert

TuxCare Inc.; Województwo mazowieckie; Remote; PLN 469,000 - 704,000; Full time

Benefits offered by this job

Fully remote work

Flexible working hours

Paid 24 days vacation per year + 10 US

Private medical insurance

Co-working and gym reimbursement

Budget for education

Patent reward

Job summary

TuxCare Inc. is seeking a Senior Kernel Support Engineer to join our KernelCare team. You will analyze crashes, patches, and CVE-related questions for live patching on Linux kernels, and own Sev 1 cases for enterprise customers with 24/7 on-call obligations.

You will work remotely with flexible hours, focusing on deep technical investigations, reporting clear findings, and collaborating with patch teams to drive fixes and robust support for our cloud and on-premise deployments.

Qualifications

• Strong knowledge of Linux kernel internals including memory management, VFS, networking, scheduling and locking.
• Hands-on experience with Linux kernel crash analysis using crash, vmcore analysis and oops decoding.
• Good C programming skills and ability to read Linux kernel code and patches.
• Experience with vendor security advisories (RHSA, USN, DSA) and kernel changelogs.
• Excellent written English communication skills to explain findings clearly.

Responsibilities

• Analyze crashes, hangs and reboots related to live patching and determine if the patch caused them.
• Investigate patching failures, stuck transitions, unknown symbols and conflicts with backup tools.
• Assess missing patches and new kernel/distro support requests with the patch team.
• Answer CVE-related questions by checking patch sources and documentation.
• Identify root cause, provide a patch team-ready report and track fixes.
• Be the named engineer for Sev 1 incidents for enterprise customers until closure.
• Assist during critical CVE events and participate in 24/7 on-call rotation.

Skills

Linux kernel internals

Linux kernel crash analysis

C programming

Vendor security advisories

English communication

Tools

crash tool

vmcore analysis

kernel oops decoding

Job description

TuxCare Inc. is seeking a Senior Kernel Support Engineer to join our KernelCare team. You will analyze crashes, patches, and CVE-related questions for live patching on Linux kernels, and own Sev 1 cases for enterprise customers with 24/7 on-call obligations.

You will work remotely with flexible hours, focusing on deep technical investigations, reporting clear findings, and collaborating with patch teams to drive fixes and robust support for our cloud and on-premise deployments.