Note: The job is a remote job and is open to candidates in USA. 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 is focused on Linux systems engineering, package management, and software supply chain security, ensuring secure, production-grade container images are delivered at scale.
Responsibilities
- 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.)
- 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
- 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
- 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
- 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
Skills
- 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++
- Experience building CI/CD pipelines for OS or system-level build processes
- Strong debugging skills across Linux systems and build environments
- Experience contributing to or maintaining Linux distributions or open-source OS projects
- Experience building minimal, distroless, or hardened container images
- Familiarity with package build infrastructure (Koji, OBS, Launchpad, mock, etc.)
- Experience with kernel hardening or low-level OS security modules
- Knowledge of large-scale container security platforms
- Contributions to open-source security, Linux, or container ecosystems
Benefits
- Health, dental, and vision insurance
- Paid time off
- Equity participation
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