Cybersecurity Specialist III

Description

The Leidos Digital Modernization Sector is seeking a Cybersecurity Specialist III to support the Department of the Navy at Naval Information Warfare Center (NIWC) Atlantic as part of its Cybersecurity Service Provider (CSSP) program. In this critical role, you will provide comprehensive cybersecurity support across multiple domains, including Incident Response, Cyber Hunt, Digital Forensics, Insider Threat, Continuous Monitoring, Vulnerability Assessment, and Cybersecurity Tool Development.

As a key member of the CSSP team, you will contribute to Defensive Cyberspace Operations (DCO) supporting the Department of Defense (DoD), Joint Forces, Coalition Partners, Non-DoD, and other Federal Agencies. Your expertise will be instrumental in safeguarding classified and unclassified networks while collaborating with industry, academia, and government entities to develop cutting-edge cybersecurity applications, platforms, and processes.

• Conduct real-time network monitoring, analysis, and threat detection to ensure the security of classified and unclassified systems.
• Respond to cyber incidents, perform digital forensics investigations, and contribute to incident coordination efforts across DoD and Federal agencies.
• Support cyber hunt operations, proactively identifying vulnerabilities and security threats before exploitation occurs.
• Develop and maintain system security policies, ensuring compliance with DoD cybersecurity standards and Risk Management Framework (RMF) guidelines.
• Evaluate security solutions and controls, ensuring they meet requirements for processing classified information.
• Assist in the certification and accreditation (C&A) process, ensuring systems comply with cybersecurity policies.
• Utilize tools such as DISA Enterprise Mission Assurance Support Service (eMASS), Assured Compliance Assessment Solution (ACAS), and Host-Based Security System (HBSS) for security monitoring and compliance reporting.
• Work closely with CSSP analysts, engineers, and leadership to enhance cybersecurity capabilities and develop innovative security solutions.
• Ensure adherence to change management and configuration control processes to maintain system integrity and security posture.
• Provide guidance and mentorship to junior cybersecurity specialists, fostering knowledge-sharing and professional development.

• Active Security Clearance: Must hold an active SECRET clearance.
• Education: Bachelor's degree in Cybersecurity, Computer Science, or a related field with at least four (4) years of experience (Additional years of experience may substitute for a bachelor's degree); or a Master's degree and 2 years' experience.
• Certifications: Must meet DoD 8570 IAT Level III (or equivalent/higher) certification requirements, such as CISA, GSE, SCNA, CISSP (or Associate), GCIH, GLSC, or CISM.
• Experience: Minimum of four (4) years in cybersecurity, including:
• Evaluating security solutions for classified information processing.
• Supervising and maintaining the operational security posture of information systems.
• Expertise in Cybersecurity Engineering, Test & Evaluation (T&E), or Assessment & Authorization (A&A)/Certification & Accreditation (C&A).
• Working knowledge of Risk Management Framework (RMF) and Defense Information Assurance & Certification Accreditation Process (DIACAP).
• Hands-on experience with Information Assurance tools (eMASS, ACAS, HBSS, etc.).
• Developing and enforcing system security policies and ensuring compliance with cybersecurity governance.
• Must have the ability to travel internationally.