Assistant Contractor Special Security Officer (ACSSO)

CenCore is seeking a part-time Assistant Contractor Special Security Officer (ACSSO) to support security administration and compliance across multiple smaller government contracts. Working closely with the Contractor Special Security Officer (CSSO), you will maintain personnel security records, coordinate clearance-related actions, support information and physical security functions, and assist with audits and inspections.

Key Responsibilities

• Support the CSSO with daily security administration and contract-compliance activities across multiple smaller government contracts.
• Initiate, track, document, and maintain security-related administrative actions, program records, and rosters.
• Coordinate and submit personnel clearance paperwork, maintain personnel security files, and monitor action status.
• Administer information-security processes, including document control, logs, file retention, incident reporting, and operating-procedure compliance.
• Prepare for and support security audits, inspections, and self-assessments.
• Assist with meetings, reports, and document reviews for accuracy, completeness, and timely follow-through.
• Respond to internal and external security inquiries promptly and professionally.
• Support company and program security priorities within the scope of the role.

Required Qualifications

• High school diploma.
• At least 2 years of administrative or security-support experience in a government or defense-contracting environment.
• Proficiency with Microsoft Word, Excel, and other office productivity tools.
• U.S. citizenship.
• Top Secret/Sensitive Compartmented Information (TS/SCI) clearance required.
• Ability to manage multiple priorities, meet deadlines, and adapt to changing requirements.

Preferred Qualifications

• Associate’s or bachelor’s degree.
• Experience supporting a Contractor Special Security Officer (CSSO), Facility Security Officer (FSO), or security office in a cleared environment.
• Knowledge of the National Industrial Security Program Operating Manual (NISPOM), Intelligence Community Directive 705 (ICD 705), and related Department of Defense (DoD) or Intelligence Community security policies.
• Familiarity with the Defense Information System for Security (DISS), National Industrial Security System (NISS), or other government security systems.

Skills / Competencies

• Security administration and records management
• Personnel and information security coordination
• Compliance tracking and documentation
• Clear, professional written and verbal communication
• Critical thinking and practical problem-solving