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Senior OS Engineer – Linux Security, Container Supply Chain

Remote · Japan Full-time

Job Description:

  • Design, build, and maintain secure Linux-based operating system components
  • Own end-to-end CVE remediation across Linux OS packages and system libraries
  • Analyze vulnerabilities affecting core OS components
  • Validate upstream fixes and determine patching or backporting strategies
  • Build and maintain secure, minimal, production-ready container images
  • Generate and maintain SBOMs for OS packages and container images
  • Design and scale automated pipelines for OS patching, package rebuilding, and image generation
  • Partner with platform, DevOps, infrastructure, and security teams

Requirements:

  • 5+ years in Linux systems engineering, OS engineering, platform engineering, DevSecOps, or release engineering
  • Deep expertise in Linux operating systems and distributions (Debian, RHEL, Ubuntu, Alpine)
  • Strong experience with OS package management systems (apt, rpm, dnf, apk)
  • Hands-on experience patching, rebuilding, or maintaining OS packages
  • Strong understanding of Linux internals (processes, memory, filesystem, system libraries)
  • Experience working with system-level libraries and dependencies (glibc, openssl, etc.)
  • Deep knowledge of dependency resolution, ABI compatibility, and package lifecycle management
  • Experience with container internals and Linux runtime behavior
  • Experience remediating CVEs in OS packages and container environments
  • Understanding of SBOMs, software provenance, signing, and artifact trust models
  • Familiarity with supply chain security frameworks (e.g., SLSA, reproducible builds)
  • Strong scripting/programming ability in Python, Bash, Go, or C/C++

Benefits:

  • health, dental, and vision insurance
  • paid time off
  • equity participation

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