Information System Security Officer at CACI in Chantilly, VA

  • Company: CACI
  • Location: Chantilly, VA
  • Salary: $121K – $266K
  • Job type: full time
  • Workplace: onsite
  • Posted: 2026-10-14

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Job description

Job Title: Information System Security Officer Job Category: Security Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * As an Information System Security Officer, you will be responsible for maintaining operational security posture for the information system, support security authorization activities in compliance with the sponsor's policy and develop/maintain procedures to perform vulnerability/risk assessment analysis to support certification and accreditation. As a Subject Matter Expert, assist and guide development teams implementing SecOps and IRM/CAM processes. Job Duties & Responsibilities: • Prepare and review documentation to include System Security Plans (SSPs), Risk Assessment Reports, Certification and Accreditation (C&A) packages, and System Requirements Traceability Matrices (SRTMs) • Review and develop Automated Information System (AIS) accreditation/certification support documentation • Notify the customer when changes occur that might affect AIS accreditation/certification • Perform system and network self-inspections • Provide security coordination and review on all system test plans • Perform continuous monitoring of automated vulnerability detection scan results and track the engineering efforts to remediate/address vulnerabilities • Attend system technical exchange meetings • Identify AIS vulnerabilities and implementing countermeasures • Represent the customer on various technical review teams • Conduct security surveys at subordinate facilities and gathering pertinent security documentation for inclusion into system accreditation packages • Coordinate, prepare, and track AIS inspections, reports, and responses • Maintain AIS security records • Advise on network nodes operating in subordinate government and contractor facilities and receiving direction from the government PSO • May provide work leadership for lower-level employees and customer • Assist and support migration effort for SecOps and IRM/CAM processes to new tools • Facilitate communication between technical teams and stakeholders, translating security requirements into actionable user stories • Support security authorization activities including Authority to Operate (ATO) processes and continuous ATO modernization initiatives Required Qualifications: • Bachelor's degree or equivalent and 10 years of related experience • Sec+ or any level II DoD 8570 compliant cert • Experience with network and information system security principles and test practices • Familiarity with cloud computing • Previous experience controlling, labeling, virus scanning, and appropriately transferring data (upload/download) between information systems at varying classification levels • Build rapport with military, civilian, and contractors at all levels • Familiarity with applicable IC, DoD policies, procedures and operating instructions related to IT, IA, and IM • Excellent communications skills including verbal and written • Experience using Microsoft Office products • Comfortable working with users and customers, preparing and providing briefings for related to security initiatives Desired Qualifications: • Systems Security Certified Practitioner (SSCP) certification • Exposure to projects using an Agile development approach • Experience leading mid to large security initiatives and managing small teams • Experience with Confluence - What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and

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