Senior Defensive Security Engineer – Embedded Systems

Motorola Solutions is a global community united by the mission to help keep people safer everywhere. We build and connect technologies that protect people, property, and places, fostering collaboration for safer communities, schools, hospitals, businesses, and nations. Silvus Technologies, acquired by Motorola Solutions in 2025, specializes in advanced communications technologies rooted in DARPA research. Our radios form self-healing, self-forming mesh networks, enabling secure and reliable connectivity for tactical communications.

About the role

Silvus is seeking a full-time Senior Defensive Security Engineer – Embedded Systems to report to the Director of Software Engineering. This role focuses on protecting embedded systems by designing and implementing robust security measures, conducting assessments, and ensuring compliance with industry standards. The position is based at Silvus Technologies’ headquarters in West Los Angeles, CA, on a hybrid schedule requiring a minimum of 3 onsite days per week (Mondays, Wednesdays, and Thursdays).

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 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 (e.g., dm-crypt, OpenSSL, PAM) for secure communications.

Requirements

• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or related field (e.g., Mathematics, Computer Engineering).
• 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.
• 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.
• All employment is contingent upon the successful clearance of a background check and drug test.

Preferred Qualifications

• Master’s degree in Cybersecurity, Computer Science, Information Technology, or related field.
• One or more of the following certifications: CISSP, CISM, GIAC Security Expert (GSE), CompTIA Security+, or Linux-specific (e.g., LFCS, RHCE).
• Hands-on experience implementing Linux security controls, such as SELinux, AppArmor, or iptables, and conducting security assessments.
• Proficiency in Linux security frameworks, such as CIS Benchmarks, NIST SP 800-53, or STIGs.
• Broad experience with Linux secure development lifecycle (SDL) practices.
• Knowledge of Linux threat intelligence and threat modeling.
• Familiarity with Linux container security (e.g., Docker, Podman) and cloud environments.
• Strong communication skills to explain Linux security concepts to technical and non-technical audiences.
• Collaborative teamwork with cross-functional groups.
• Experience securing resource-constrained Linux-based embedded systems.
• Understanding of real-time Linux systems and their security implications.
• Knowledge of Linux hardware security integration, such as TPM or Secure Enclave.
• Demonstrated experience designing secure Linux communication systems with encryption, authentication, and key management.
• Familiarity with mobile ad-hoc networking security on Linux platforms.

Pay

$140,000 - $200,000 annually USD. The pay range is based on market research and peer data and will vary depending on the candidate’s experience and qualifications.

Benefits

• Incentive Bonus Plans
• Medical, Dental, and Vision benefits
• 401K with Company Match
• 10 Paid Holidays
• Generous Paid Time Off Packages
• Employee Stock Purchase Plan
• Paid Parental & Family Leave

Schedule

Hybrid schedule requiring a minimum of 3 onsite days per week (Mondays, Wednesdays, and Thursdays). Travel requirements are under 10%.