Cybersecurity Engineer with Security Clearance

Responsibilities • Drive system-level cybersecurity initiatives across multiple Navy Submarine subsystems. • Translate high-level security requirements and controls (such as NIST 800-53) into clear, actionable guidance for engineering teams. • Develop, document, and implement security best practices across multiple subsystems and platforms. • Assess existing subsystem architectures to identify security gaps and recommend practical, risk-based improvements. • Coordinate with multiple engineering teams to standardize and implement security solutions in a consistent and scalable manner. • Lead security initiatives through the full lifecycle, from analysis and design through implementation and validation. • Configure, harden, and secure Red Hat-based Linux systems, including RHEL, CentOS, and Fedora. • Implement and tune Linux security tools and controls such as SELinux, USBGuard, firewalld, and related mechanisms. • Secure containerized environments using technologies such as Podman, Docker, and Kubernetes. • Contribute to the design and security of on-premises or cloud-like infrastructures, including PKI and secure communications between systems. • Develop custom security solutions, including scripts and lightweight tools, primarily in Python and, when needed, in C or C++. • Automate enforcement of security controls and configuration baselines where possible. • Design solutions to address unique or niche security requirements that fall outside standard patterns. • Stay current with vulnerabilities, zero-day exploits, and emerging cybersecurity risks relevant to the environment. • Proactively identify security risks across systems and subsystems and propose effective mitigation strategies. • Collaborate with cross-functional teams to influence technical direction and ensure security is integrated into system designs. • Contribute to hardening and securing file sharing and related protocols, such as NFS hardening, where applicable.

Essential Skills • Approximately 5–10+ years of experience in cybersecurity, systems engineering, or Linux administration. • Strong understanding of Linux operating systems, particularly Red Hat-based environments such as RHEL, CentOS, and Fedora. • Hands-on experience configuring and securing Linux systems and services. • Experience with security frameworks and compliance standards, including NIST 800-53 or similar control sets. • Ability to interpret security controls and requirements and apply them effectively to real-world systems and architectures. • Experience working across multiple teams and influencing technical direction in a collaborative environment. • Strong problem-solving mindset with the ability to operate effectively in ambiguous or evolving technical environments. • Familiarity with implementing and managing Linux security tools such as SELinux, USBGuard, and firewalld. • Security+ certification or the ability to obtain it within a defined timeframe.

Additional Skills & Qualifications • Experience with container technologies such as Kubernetes, Podman, and Docker. • Exposure to cloud or cloud-like architectures, including on-premises or hybrid environments. • Scripting and programming experience, with Python as the preferred language. • Additional programming experience in C or C++. • Familiarity with Rust as a nice-to-have skill. • Understanding of public key infrastructure (PKI), digital certificates, and secure system-to-system communication. • Familiarity with Model-Based Systems Engineering (MBSE) concepts and artifacts is a plus but not required. • Experience with file sharing and security protocols, including hardening of NFS or similar technologies. • Knowledge of security frameworks, cloud technologies, and modern security architectures. • Ability to create scripts or lightweight tools to automate and enforce security controls.