New

Senior Information Systems Security Officer

Innovative Defense Technologies
$110,000 - 170,000
paid holidays, tuition assistance, 401(k)
United States, Virginia, Arlington
4401 Wilson Boulevard (Show on map)
Mar 18, 2026
Description About the Role: Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Senior Information System Security Officer (ISSO) to be part of our Security team and based out of our Arlington, VA location. The Senior Information System Security Officer (ISSO) is a key member of the security team that will support the Assessment and Authorization (A&A) process for information systems under the jurisdiction of the Defense Counterintelligence and Security Agency (DCSA). The Sr. ISSO is responsible for ensuring that the information system complies with the security requirements and controls specified in the DCSA Assessment and Authorization Guide (DAAG) and other applicable policies and regulations. Clearance & Location Requirements: All applicants must currently posess an active Secret U.S. Security Clearance. This is an on-site position. Requiring 5 days in office, based out of our Arlington, VA location. What You Will Do: Familiarity with the Defense Counterintelligence Security Agency (DCSA) Assessment and Authorization Guide (DAAG) roles and responsibilities for the ISSO, as outlined in Section 3.7 Coordinate with the Information System Security Manager (ISSM) and Facility Security Officer (FSO) to ensure the highest level of cybersecurity compliance for classified information systems Maintain the Information Systems (IS) security program and policies for assigned areas of responsibility IAW the DCSA DAAG, assigned NIST 800-53 controls, and other guidance as assigned by the ISSM. Review and analyze all audit data at least weekly to ensure user activity adheres to operational security policy and procedures Review of network device System Log (syslog) information to correlate to system level activity across multiple information systems. Support ISSM oversight of operational IS security implementation policy and Risk Management Framework (RMF) guidelines to the system administrators Support ISSM in the development and documentation of the Plan of Action and Milestones (POA&M) and produce actions to mitigate identified risks Perform Continuous Monitoring (ConMon) tasks as assigned by the ISSM and documented within the System Security Plan Perform comprehensive investigations of security incidents and ensure proper measures are taken post discovery of the incident/event Administration of STIG compliance as it relates to Operating Systems and applications Facilitate and track all Information System Account requests and expirations for Internal Users and Visitor accounts Responsible for the preparation and demonstration of compliant classified IS's in advance of a DCSA assessments Identity and Authorization Management, including user, group, and role on both Windows and Linux systems. Actively participate in the development and implementation of effective IS security Who You Are (Required): Bachelor's degree in Information Systems or Cybersecurity (or equivalent full-time professional experience) 7+ years of professional experience with Information Security or related roles. Required Certification: Security +, CISSP, or CISM Ability to travel up to 10% of the time needed Experience with RMF Continuous Monitoring Tooling and Systems (ACAS/Tenable, STIGViewer, SCAP Compliance Checker, etc.) Proficiency with SIEM tools (Wazuh, Splunk, SolarWinds Security Event Manager) Experience with Cybersecurity tools (Tenable Security Center, Trellix ePO, Tanium, WSUS, RedHat Satellite) Ability to manage users on both Windows and Linux environments, role-based access control (RBAC), security policies (GPO's, SELinux, etc.), domain management (Active Directory, DNS, File Server, etc.), STIG/hardening actions, Troubleshooting (Event Viewer, top, netstat, systemctl, etc.) eMASS experience Familiarity with National Industrial Security Program Operating Manual (NISPOM), The 32 Code of Federal Regulations Part 117 and Defense Counterintelligence and Security Agency Assessment and Authorization Process Manual (DAAPM) requirement What Makes You Stand Out: Experience writing policy and procedure documentation Experience in working on classified systems in a DCSA accredited environment DCSA Authorization and Assessment Experience NIST 800-53 Security Control Experience Experience with tactical systems, virtualization If you see yourself reflected in this role and are excited about the impact you could make, we encourage you to apply! If you know someone who may be a great fit, please feel free to share this opportunity with your network. Pay Range*: $110,000 - 170,000 This amount may not be reflective of actual compensation that may be earned as pay is dependent on a candidate's experience, skills, and education. The posted range does not include bonuses, commissions, tips, or other benefits. IDT is often looking to place multiple candidates at various levels. Therefore, more than one pay range has been included, commensurate with experience. About Innovative Defense Technologies (IDT): Innovative Defense Technologies (IDT) is a leading defense technology company focused on rapidly delivering mission-critical software and systems solutions to the U.S. government. The company specializes in automation, digital engineering, and enabling the rapid integration of advanced capabilities into complex weapon and combat systems. These essential solutions empower the warfighter to field, operate, and sustain decisive capability at speed and scale. At IDT, our employees are developing advanced mission-critical outcomes by consistently delivering high-quality results, fostering innovation, applying rigorous problem-solving, and communicating effectively across multifaceted teams and stakeholders. Grounded in these competencies, IDT translates complex customer and product requirements into robust software solutions. Why Work at Innovative Defense Technologies (IDT): IDT is a growing company with a vibrant, entrepreneurial culture. We are headquartered in Arlington, VA with additional offices in Fall River, MA; Mount Laurel, NJ; and San Diego, CA. At each location, our employees work together in a modern, snack-filled, and social office space, designing innovative solutions for our defense industry customers. We offer employees competitive pay and benefits including: Generous benefits package Competitive PTO Paid holidays 401(k) with immediate vesting and matching 9/80 optional schedule (2nd and 4th Friday off every month) Tuition Assistance Reimbursement Program Professional Development Resources Pre-Tax Commuter Benefits Organization-Wide Monthly Tech Connect Events Annual Employee Recognition Awards Regular Social Events and Catered Lunches EEO Statement: IDT is an Equal Opportunity employer.