Senior Linux Engineer, Privileged Access
New
K
Keeper SecurityCybersecurity
Remote, USFull-TimeSenior
Salary not disclosed
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Job Details
- Experience
- 7+ years
- Required Skills
- .NETRustLinux
Requirements
- 7+ years of professional software or systems engineering experience, with significant hands-on Linux systems programming experience
- Deep understanding of Linux process and security concepts, including the proc filesystem, user and group IDs, Linux capabilities, namespaces and process execution
- Strong C programming experience, including native Linux development, memory management, GCC and Make-based build workflows and defensive error handling
- Experience developing or integrating with Linux PAM and PAM configuration
- Strong Rust experience, including ownership, concurrency, asynchronous development and long-running service or daemon design
- Experience with Tokio or similar asynchronous Rust frameworks
- Working proficiency with C# and .NET in Linux environments
- Experience developing security-sensitive software involving authentication, authorization, privilege elevation, process trust or least-privilege controls
- Strong understanding of Linux service management and operations, including systemd, journalctl, SELinux and/or AppArmor, and RPM/DEB packaging
- Ability to read Linux kernel and subsystem documentation and translate system behavior into secure production implementations
- Bachelor’s degree in Computer Science, Engineering or a related field, or equivalent practical experience
Responsibilities
- Design, develop and maintain Linux endpoint privilege management capabilities across Rust, C and .NET components
- Build and enhance kernel-facing agent functionality using Linux interfaces such as fanotify, the proc filesystem, namespaces, capabilities and process identity
- Develop and maintain native PAM modules and Linux privilege-elevation workflows
- Build long-running privileged Linux services using Rust, Tokio, MQTT, TLS and asynchronous programming patterns
- Develop Linux-specific orchestration and session-management capabilities in .NET 8, including process authentication, access controls, ephemeral accounts and session monitoring
- Diagnose complex Linux execution and security issues involving blocked processes, authentication races, permissions, SELinux, AppArmor and system service behavior
- Build and maintain systemd services, RPM and DEB packages, installation workflows, service hardening and operational diagnostics
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