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

Overview

Cambridge International Systems, Inc. Join a dynamic global team united by shared values: commitment, integrity, and perseverance. At Cambridge, you’ll work alongside top talent worldwide, tackling some of today’s most complex and critical challenges in defense and security.

We are currently seeking a Cyber Security Engineer to support operations in Charleston, SC. This is a full-time, CONUS position requiring an active DoD TS/SCI clearance.

As a Cyber Security Engineer, you will play a critical role in monitoring, analyzing, and detecting cyber events and incidents within information systems and networks that serve U.S. government missions at the Cambridge Customer Site. You will:

• Monitor and analyze network traffic, system logs, and security alerts to detect, investigate, and escalate cybersecurity threats and incidents, ensuring timely response and documentation.
• Support integrated cyber defense operations aligned with organizational risk management frameworks; maintain security tools to enable continuous monitoring and RMF/NIST authorization activities.
• Establish and apply methods to quantify and measure cyber risk, supporting risk-based decision-making across the enterprise.
• Evaluate business and system architectures to determine cybersecurity requirements and ensure alignment with information security standards and best practices.
• 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 (A&A) 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 required 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.

Required Qualifications:

• Education & Experience: HS Diploma + 5 years of relevant experience
• Technical Expertise: Experience with the RMF Process; experience with policy and RMF artifact development; ability to lead a team of cyber security professionals and direct tasking and provide mentorship and leadership; experience with web-based applications designed to support the RMF and A&A such as eMASS and MCCAST.
• Certifications: CompTIA CISSP or CASP+ certification;
  CompTIA CySA+ certification; must have a current and active DoD TS/SCI security clearance; proficient with modern IT tools and infrastructure technologies

Preferred (Nice to Have):

• Desire experience with HBSS.

Travel & Passport:

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

Work Environment:

• Compliance with vaccination and medical requirements for TDY/OCONUS roles as per Vaccine Recommendations by AOR | Health.mil.

Office setting:

• Primarily an office-based role in Quantico, VA
• Standard desk/computer work with flexibility for walking and movement on site
• Must be able to work in an office environment, sitting at a desk, looking at a computer for most of the workday
• Work is physically comfortable; the employee has discretion about sitting, walking, standing, etc.
• May be required to travel short distances to offices/conference rooms and buildings on site.

Background & Security:

• Employment is…