Senior Defensive Security Engineer - Embedded Systems Los Angeles, CA

Senior Defensive Security Engineer – Embedded Systems (Los Angeles, CA)

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Salary: $140,000 – $199,000 per year

Our client is dedicated to one mission: connecting those who keep us safe. We do so by delivering the most advanced Mobile Ad-hoc Network (MANET) radios powered by our custom and ever-evolving Mobile‑Networked MIMO waveform.

• 100% Match towards 401k!
• 20 Days of PTO + Holidays closure for Christmas Day through New Year's Day!
• Health, Dental & Vision Plans Employee Premiums Covered 100%!
• Hybrid Work Schedules and Flexible Start Times for Applicable Positions!
• Cutting Edge Wireless Technology company where what you do makes a difference.

• 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 (Dev Sec Ops ), 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.

• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or related field (e.g., Mathematics, Computer Engineering).
• Minimum 5 years in cyber‑security, 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 12 months of hire.
• NOTE – Must be a U.S. Person (U.S. Citizen, or U.S. Permanent Resident) due to clients under U.S. federal contracts.

• 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, App Armor, 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.

• Office environment.
• While performing the duties of this job, the employee is required to do the following:
• Lift equipment up to 20 lbs for the set‑up of demonstrations and testing.
• Perform bending and reaching movements to place items on lower and higher shelves.
• Walking/Moving in the labs.

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