Senior Defensive Security Engineer

Responsibilities

• Design and implement Linux-based security architectures for embedded systems, focusing on secure boot and kernel hardening
• Develop and enforce Linux security features including iptables, netfilter, and auditd
• Conduct security assessments and audits of Linux-based embedded systems to identify and mitigate vulnerabilities
• Integrate Linux security best practices into the DevSecOps lifecycle
• Manage vulnerabilities through timely patching and kernel updates
• Train teams on Linux security practices, privilege management, and container security
• Participate in incident response planning and execution
• Implement Linux-native encryption and authentication mechanisms such as dm-crypt, OpenSSL, and PAM

Requirements

• High School diploma or GED plus 5 years of experience in cybersecurity
• At least 2 years of experience in defensive security roles focused on Linux based systems
• Expertise in Linux network security, secure coding, or embedded systems security
• Coding/scripting proficiency in embedded C/C++ for Linux environments
• Familiarity with Linux security tools like auditd, Lynis, or vulnerability scanners
• Active U.S. Government SECRET clearance or ability to obtain one within 15 months
• Must be a U.S. Citizen

Preferred Qualifications

• Bachelor or Master’s degree in Cybersecurity, Computer Science, or related field
• Certifications such as CISSP, CISM, GSE, CompTIA Security+, LFCS, or RHCE
• Hands-on experience with SELinux, AppArmor, or iptables
• Proficiency in CIS Benchmarks, NIST SP 800-53, or STIGs
• Experience with Linux container security (Docker, Podman)
• Knowledge of Linux hardware security integration such as TPM or Secure Enclave
• Experience securing resource-constrained Linux-based embedded systems

About the Company

Silvus Technologies is a leading provider of advanced MANET and MIMO communications systems, reshaping mesh network technology for mission-critical applications in defense, law enforcement, and public safety. A wholly owned subsidiary of Motorola Solutions, Inc.