Senior Kernel Support Engineer - Remote & Flexible Hours

TuxCare Inc.; Kraków; À distance; PLN 180 000 - 300 000; Plein temps

Avantages offerts par ce poste

Fully remote work

Flexible hours

Private medical insurance

Vacation days + holidays

Sick leave policy

Co-working/gym reimbursement

Education budget

Innovation patent reward

Résumé du poste

KernelCare is seeking a Senior Kernel Support Engineer to join our expert team. You will analyze crashes, patching failures, and CVE questions, owning Sev 1 incidents for enterprise customers with 24/7 on-call obligations.

Ideal candidates have deep Linux kernel knowledge, strong C skills, and experience with vendor advisories and patch processes. Remote work options and enterprise-focused benefits are provided.

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.
• Proficient in C programming; able to read Linux kernel code and patches to identify root causes.
• Experience with vendor security advisories (RHSA, USN, DSA) and kernel changelogs (Git history).
• Experience handling critical production incidents for enterprise customers; excellent written English.

Responsabilités

• Analyze crashes, hangs and reboots related to live patching; determine impact and communicate findings to customers.
• Investigate patching failures, stuck transitions, unknown symbols, and conflicts with backup tools.
• Collaborate with patch team to add support for missing patches and new kernels/distro support.
• Answer CVE-related questions by checking patch sources and documentation, not only the docs.
• Find root causes, provide patches team with clear reports, and follow through to fix.
• Serve as named engineer for enterprise Sev 1 cases; own the case until resolution.
• Help during major CVE events.
• On-call for Sev 1 with the team (24/7 is a contract obligation).

Connaissances

Linux kernel internals

C programming

Vulnerability advisories experience

Incident management

Clear communication

Outils

crash tool

vmcore analysis

kernel oops decoding

Git history

Proxmox virtualization

KVM

Python scripting

Description du poste

KernelCare is seeking a Senior Kernel Support Engineer to join our expert team. You will analyze crashes, patching failures, and CVE questions, owning Sev 1 incidents for enterprise customers with 24/7 on-call obligations.

Ideal candidates have deep Linux kernel knowledge, strong C skills, and experience with vendor advisories and patch processes. Remote work options and enterprise-focused benefits are provided.