Senior Linux Engineer, Privileged Access (Cybersecurity)

Location: Remote, US; hybrid schedule available for candidates in the Chicago, IL or El Dorado Hills, CA metro areas.

Company

hirify.global develops cybersecurity software and a zero-knowledge, zero-trust privileged access management platform used by organizations and individuals worldwide.

What you will do

• Design, develop, and maintain Linux endpoint privilege-management capabilities across Rust, C, and .NET components.
• Build kernel-facing agent functionality using fanotify, proc, namespaces, capabilities, and process-identity interfaces.
• Develop native PAM modules, privilege-elevation workflows, and long-running privileged services with Rust, Tokio, MQTT, TLS, and asynchronous programming.
• Develop .NET 8 orchestration and session-management capabilities for process authentication, access controls, ephemeral accounts, and session monitoring.
• Diagnose low-level Linux execution and security issues involving authentication races, permissions, SELinux, AppArmor, and system services.
• Build systemd services, RPM and DEB packages, installation workflows, service hardening, and operational diagnostics while collaborating with PAM, endpoint, QA, and platform engineers.

Requirements

• 7+ years of professional software or systems engineering experience with significant hands-on Linux systems programming.
• Deep knowledge of Linux processes, security boundaries, capabilities, namespaces, process execution, and kernel-facing interfaces.
• Strong C and Rust experience, including native Linux development, memory management, ownership, concurrency, asynchronous programming, and daemon design.
• Experience with Linux PAM, PAM configuration, authentication, authorization, privilege elevation, process trust, or least-privilege controls.
• Working proficiency with C# and .NET in Linux environments, plus experience with systemd, journalctl, SELinux and/or AppArmor, and RPM/DEB packaging.
• Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience; ability to use AI-assisted tools for development, debugging, testing, analysis, and documentation.

Nice to have

• Experience with MQTT, Linux desktop session technologies, TLS, PKI, code signing, or certificate-based authentication.
• Experience supporting RHEL and Ubuntu, building software for x86 and ARM, or working with endpoint security and privileged access management products.
• Familiarity with Avalonia, Linux desktop UI frameworks, Windows or macOS endpoint security, and just-in-time elevation workflows.

Culture & Benefits

• 100% remote work with a hybrid option in selected US metro areas.
• Medical, dental, and vision insurance, including domestic partnerships.
• Employer-paid life insurance and voluntary short- and long-term disability insurance.
• 401(k) Roth and traditional plans, generous paid time off, and paid bereavement and jury duty leave.
• Above-market annual bonuses and an inclusive equal-opportunity workplace.