Senior Defensive Security Engineer

### Who you are
- 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
- Security Clearance: Active U.S. Government SECRET clearance or the ability to obtain one within 15 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
- All employment is contingent upon the successful clearance of a background check and drug test
- 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
- Travel Requirements: Under 10%

### What the job involves
- Silvus is seeking a full-time Senior Defensive Security Engineer – Embedded Systems that will report to the Director of Software Engineering on the Software Engineering team
- The successful individual in this role will focus protecting our embedded systems from potential threats by designing and implementing robust security measures, conducting security assessments, and ensuring compliance with industry standards
- 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
- Management may assign or reassign duties and responsibilities at any time at its discretion

### The application process
- All employment is contingent upon the successful clearance of a background check and drug test

### Benefits
- Flexible work models
- Paid time off
- Paid parental and family leave
- Health care benefits
- Global wellness resources
- Employee assistance programs
- Rotation programs
- Mentor relationships
- Learning and development opportunities
- Retirement benefits
- Employee bonuses
- Stock grants & employee stock purchase plans