This is a full-time position, and requires a TS/SCI/Full Scope Polygraph Clearance. 2HB Incorporated is seeking a Sr. Information Systems Security Officer in order to support its government customer in Annapolis Junction, MD. Required Skills: • Enhancing the system security posture by supporting the program, organization, system, or enclave's information assurance initiatives and enforcing security policies, standards, and methodologies. • Overseeing security operations for information systems, managing daily security aspects, evaluating security solutions for classified processing, and conducting vulnerability and risk analysis/assessments for system authorization. • Managing configuration and system integrity by administering configuration management for security software, hardware, and firmware, ensuring compliance with security controls, and assessing the impact of system changes. • Developing and maintaining security documentation and System Security Plans lifecycle management activities to ensure compliance with system security requirements. • Providing technical expertise in security policies and operations, supporting the implementation and maintenance of security measures and countermeasures, and collaborating with stakeholders to maintain compliance and strengthen the system security posture. • Driving continuous improvement by assessing existing security processes, identifying vulnerabilities, and implementing proactive solutions to enhance system resilience. • Bachelor of Science degree in Computer Science, Information Assurance, Information Security, or a related discipline, plus 12+ years of relevant experience. In lieu of a degree, an additional 4 years of experience may be considered on a case by case basis. • Direct Experience: 10+ years of in-depth experience as ISSO or combination of ISSO and other security related role supporting IC or DoD programs and contracts of similar scope, type, and complexity. • Proficient with with customer security tools, corporate repositories, playbooks and guidelines • Knowledgeablewith appliclable frameworks, regulations, standards, policies and procedures • Operational understanding of server and IA technologies, internetworking protocols and services • Certifications & Compliance with DoD 8140.03 with IAM Level II or higher (CASP+, CISSP or higher) This is a full-time position, and requires a TS/SCI/Full Scope Polygraph Clearance.