Cyber Security Engineer – TS​/SCI Clearance | Charleston, SC

Cyber Security Engineer – TS/SCI Clearance | Charleston, SC

Cambridge International Systems, Inc.

Cambridge International Systems seeks a full‑time, CONUS Cyber Security Engineer to support operations in Charleston, SC. An active DoD TS/SCI clearance is required.

• Monitor and analyze network traffic, system logs, and security alerts to detect, investigate, and document cyber threats and incidents.
• Support integrated cyber defense operations aligned with organizational risk management frameworks, maintaining security tools for continuous monitoring and RMF/NIST authorization activities.
• Establish and apply methods to quantify and measure cyber risk for risk‑based decision‑making.
• Evaluate business and system architectures to determine cybersecurity requirements and ensure alignment with information security standards.
• Conduct system security, vulnerability, and risk assessments to identify security gaps, integration challenges, and compliance issues.
• Develop cost estimates and implementation plans for cybersecurity solutions based on risk and compliance assessments.
• Prepare, implement, and enforce cybersecurity policies, standards, and Assessment & Authorization requirements.
• Plan, implement, upgrade, and monitor security controls to enhance system resilience and support accreditation processes.
• Identify cybersecurity vulnerabilities, recommend remediation strategies, and track mitigation efforts to closure.
• Respond to and investigate cybersecurity incidents, restore protections, and produce incident reports in accordance with regulatory guidance.
• Develop and execute security test scripts and validation activities to verify the effectiveness of technical and operational controls.
• Design, develop, and integrate DoD Information Assurance architectures and secure system components within computing, network, and enclave environments.
• Ensure system architectures, including programs of record and special‑purpose processing nodes, meet functional, performance, and security requirements.
• Support secure integration of platform IT and special‑purpose systems with existing infrastructure.
• Develop and deliver cybersecurity training, lead post‑incident reviews, and promote a strong security awareness culture.

• HS Diploma + 5 years of relevant experience.
• Experience with the RMF Process.
• Experience with policy and RMF artifact development.
• Ability to lead a team of cybersecurity professionals and provide mentorship.
• Experience with web‑based applications designed to support the RMF and A&A such as eMASS and MCCAST.
• CompTIA CISSP or CASP+ certification.
• CompTIA CySA+ certification.
• Current and active DoD TS/SCI security clearance.
• Proficiency with modern IT tools and infrastructure technologies.

• Experience with HBSS.

• Up to 25% travel, CONUS and OCONUS may be required.

• Compliance with vaccination and medical requirements for TDY/OCONUS roles as per Vaccine Recommendations by AOR.
• Primarily an office‑based role in Quantico, VA with standard desk/computer work and flexibility for walking and movement on site.
• Must be able to work in an office environment; discretionary sitting, walking, standing, etc.
• May be required to travel short distances to offices/conference rooms and buildings on site.

• Employment contingent on successful background investigation.
• Drug screening may be required for federal contract compliance.

• Medical, dental, vision, life, accident, and critical illness insurance.
• 401(k) immediate vesting and match.
• Paid time off and company holidays.
• Generous tuition and training support.
• Relocation assistance.
• Sign‑on and performance‑based bonuses.
• Employee referral program.
• Access to Tickets at Work, EAP, wellness initiatives, and more.

We are an equal opportunity employer. Applicants and employees are considered for positions and are evaluated without regard to any protected status under applicable law or other similar factors that are not job‑related. Selected applicants may be subject to a background investigation and/or education verification. We provide reasonable accommodation for qualified individuals with disabilities in accordance with federal, state, and local law.

If you require a reasonable accommodation to participate in the application process or to perform the essential functions of the position, please contact our Recruiting Team.