Senior Software Engineer - Linux OS Internals & Hardening

Job Summary


Responsibilities

• Implement Debian packaging (.deb creation, control files, maintainer scripts) and systemd service units for network daemons
• Optimize Linux kernel configuration for routing workloads and implement bootloader integration (U-Boot, GRUB2)
• Implement OS hardening - AppArmor profiles, seccomp filters, CIS benchmark compliance, and privilege separation
• Implement authentication and access control (PAM, SSH hardening, certificate management) and security auditing
• Debug system-level issues with strace/ltrace/perf/ftrace, and profile boot time and resource utilization
• Mentor 2-3 junior engineers on Linux system programming and Debian packaging

Requirements

• 3+ years of software development experience, with 2+ years in Linux system programming or embedded Linux development
• Strong understanding of Linux system architecture, kernel subsystems, and user-space programming
• Hands-on experience with Debian/Ubuntu system administration and package management
• Experience building or maintaining Linux-based embedded systems or appliances

Nice to Have

• Contributions to Linux system software or Debian packaging
• Experience with carrier-grade Linux deployments requiring high availability
• Understanding of network operating system architecture (routing daemons, management planes)
• Understanding of UEFI Secure Boot and TPM integration

Key Skills

• C
• Debian Packaging
• systemd
• AppArmor/seccomp
• Linux Kernel
• PAM/SSH
• GDB/strace/perf
• Git

What You'll Gain

• Work on cutting-edge Debian-based network operating system platform used in carrier-grade deployments
• Learn from experienced Principal Engineers and System Architects
• Deep technical expertise in Linux system internals and security hardening
• Career growth path to Lead Engineer and Principal Engineer roles

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.