Senior Defensive Security Engineer – Embedded Systems

About the Role Senior Defensive Security Engineer – Embedded Systems will focus on protecting embedded systems from potential threats by designing and implementing robust security measures, conducting security assessments, and ensuring compliance with industry standards. The role is based at Silvus Technologies’ West Los Angeles, CA headquarters on a hybrid schedule (minimum 3 days onsite per week). What You'll Do

• 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 for intrusion detection and prevention.
• Conduct security assessments and audits of Linux-based embedded systems to identify and mitigate vulnerabilities.
• Integrate Linux security best practices into the development lifecycle (DevSecOps), emphasizing secure coding and configuration management.
• Manage vulnerabilities in Linux-based embedded systems, including timely patching and kernel updates.
• Train teams on Linux security practices, including privilege management, file system permissions, and container security.
• Participate in incident response planning and execution for Linux-based embedded systems.
• Implement Linux-native encryption and authentication mechanisms (dm-crypt, OpenSSL, PAM) for secure communications. What We're Looking For
• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or related field.
• Minimum 5 years in cybersecurity, with at least 2 years in defensive security roles focused on Linux-based systems.
• Expertise in Linux network security, secure coding, or embedded systems security.
• Coding/scripting in C/C++, Python, Bash, or assembly for Linux environments.
• Familiarity with Linux security tools like auditd, Lynis, or vulnerability scanners.
• Security Clearance: Active U.S. Government SECRET clearance or the ability to obtain one within 15 months of hire.
• Must be a U.S. Person (U.S. Citizen or U.S. Permanent Resident) due to clients under U.S. federal contracts.
• Willingness to undergo a background check and drug test. Nice to Have
• Master’s degree in Cybersecurity, Computer Science, Information Technology, or related field.
• Certifications such as CISSP, CISM, GIAC Security Expert (GSE), CompTIA Security+, or Linux-specific (LFCS, RHCE).
• Hands-on experience implementing Linux security controls (SELinux, AppArmor, iptables) and conducting security assessments.
• Proficiency with CIS Benchmarks, NIST SP 800-53, or STIGs; SDL practices; container security (Docker/Podman); cloud environments.
• Strong communication and collaboration skills; experience securing resource-constrained embedded systems; understanding of RT Linux.
• Knowledge of Linux hardware security integration (TPM, Secure Enclave) and secure Linux communications with encryption and key management.
• Familiarity with mobile ad-hoc networking security on Linux platforms. Compensation & Benefits
• Salary: $140,000 - $200,000 USD per year. The pay range is not a guarantee and varies based on experience.