Senior OS Engineer — Linux Security & Container Supply Chain

Senior OS Engineer — Linux Security & Container Supply Chain

About the Role

RapidFort is looking for a deeply technical Senior OS Engineer to design, build, and maintain secure Linux-based operating system components that power hardened container images and cloud-native workloads.

This role sits at the intersection of Linux systems engineering, package management, and software supply chain security. You will be responsible for identifying vulnerabilities in OS packages, validating fixes, rebuilding or patching components, and ensuring secure, production-grade container images are delivered at scale.

You will work across multiple Linux distributions to curate, harden, and continuously improve the operating system layers used in containerized environments. This includes package-level remediation, dependency resolution, and automation of secure build pipelines.

This is a hands-on engineering role focused on Linux internals, OS packaging, and container image security — not just vulnerability scanning or policy enforcement.

What You’ll Do

OS & Package Security Engineering

• Own end-to-end CVE remediation across Linux OS packages and system libraries
• Analyze vulnerabilities affecting core OS components (glibc, openssl, kernel modules, runtime libraries, etc.)
• Validate upstream fixes and determine patching or backporting strategies
• Rebuild, patch, and curate OS packages across multiple Linux distributions (Debian, RHEL, Alpine, etc.)

Container Image Hardening

• Build and maintain secure, minimal, production-ready container images
• Remove unnecessary packages and reduce image attack surface
• Ensure OS-level changes propagate safely into container environments
• Validate image integrity, compatibility, and runtime stability

Supply Chain Security

• Generate and maintain SBOMs for OS packages and container images
• Implement provenance, signing, and artifact trust mechanisms
• Ensure reproducible and verifiable builds across OS components
• Strengthen software supply chain security across all image pipelines

Automation & Build Systems

• Design and scale automated pipelines for OS patching, package rebuilding, and image generation
• Integrate CVE scanning, remediation, and validation into CI/CD workflows
• Build tooling for OS-level dependency tracking and vulnerability analysis
• Improve build efficiency, reliability, and reproducibility

Cross-Functional Collaboration

• Partner with platform, DevOps, infrastructure, and security teams
• Work closely with engineering teams to integrate secure OS layers into product pipelines
• Support production environments with stable, secure OS baselines

What You Bring

Core Experience

• 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

Technical Depth

• Strong understanding of Linux internals (processes, memory, filesystem, system libraries)
• Experience working with system-level libraries and dependencies (glibc, openss