Assistant Contractor Special Security Officer

ABOUT THE TEAM

The Special Access Program Security team is responsible for ensuring the security of classified information for Anduril’s most sensitive programs and contracts. The team has individuals located across the country and works in a collaborative manner to ensure the security of Anduril and government information, and Anduril’s defense products.

ABOUT THE JOB

We are looking for an Assistant Contractor Special Security Officer — Program Integration (ACSSO-Program Integrator) to join our growing team in Chantilly, VA. This is a customer-appointed security program management position embedded within the security organization — the incumbent must be nominated by the contractor and formally approved by the Westfield government program security office to ensure compliance with the customer’s classified program security standards before assuming any duties in this role. The position requires a cleared professional who combines hands-on technical fluency with a knowledge of SCI security policy. The ACSSO-Program Integrator serves as the designated alternate to the primary CSSO and functions as the single security focal point for all technical interactions across every program team, IT deployment team, and government program security office. This appointment remains contingent on the incumbent’s continued adherence to all classified program security standards established by the Westfield customer.

In this role you will bridge two worlds: you will speak the language of IT deployment and systems engineering teams with enough depth to evaluate technical changes, network architectures, and system configurations on their security merits, and you will carry the same fluency into conversations with government Cognizant Security Authorities (CSAs), Cognizant Security Offices (CSOs), and Authorizing Officials so that security requirements are communicated accurately in both directions. You will own the execution cadence — driving implementation, coordinating across engineering, IT, and facilities teams, tracking compliance milestones, and ensuring nothing falls through the cracks between security policy and program operations.

This role leverages the incumbent’s technical systems administration background to bring credibility when working with IT and engineering teams, enabling faster, more accurate translation of security requirements into system-level actions. You will be responsible for managing security implementation schedules, coordinating system accreditation and authorization activities, and maintaining program security documentation in support of SCI initiatives governed by ICD 703, ICD 705, ICD 503, NIST SP 800-53, and applicable NISPOM (32 CFR Part 117) requirements. If you thrive in fast-paced, collaborative environments and are ready to own security outcomes across every technical and programmatic touchpoint, this role is for you!

WHAT YOU’LL DO

• Serve as the designated security point of contact for all program teams, IT deployment teams, and system administration groups — ensuring every technical change, system deployment, and infrastructure modification receives proper security review before implementation.
• Translate complex security requirements (ICD 503, NIST SP 800-53, NISPOM) into clear, actionable technical guidance that IT deployment teams can execute against, and verify that implementations meet the intent of the requirement.
• Act as the day-to-day security liaison embedded with engineering and IT operations, maintaining enough technical depth in systems administration, network architecture, and deployment workflows to evaluate proposed changes on their security merits.
• Provide regular security status roll-ups to program management and the CSSO that translate technical findings, system vulnerabilities, and deployment risks into program-level risk language accessible to non-technical stakeholders.
• Coordinate directly with government security representatives, Authorizing Officials, CSAs, and partner program security teams on all cross-functional security matters, serving as the primary technical voice from the contractor security organization.
• Communicate system architecture decisions, technical risk posture, and remediation plans to government program security offices with sufficient technical precision to support informed authorization decisions.
• Serve as the Alternate CSSO, assuming full CSSO authority and responsibilities in the primary CSSO’s absence, including independent security decision-making, incident reporting, and government liaison duties.
• Administer SCI security programs in accordance with ICD 703, ICD 705, ICD 503, NIST SP 800-53, and applicable NISPOM requirements, ensuring continuous compliance across all program activities.
• Assist with incident response coordination, including classification reviews, damage assessments, government notifications, evidence preservation, and remediation tracking.
• Direct the program security implementation schedule, assigning action items, managing POA&Ms, and driving corrective actions to closure across all responsible parties.
• Maintain current security documentation including System Security Plans (SSPs), hardware/software inventories, network diagrams, SCIF documentation, and configuration baselines.
• Conduct self-inspections and internal security reviews in concert with IT stakeholders of IT infrastructure to identify vulnerabilities, process gaps, and compliance deficiencies; develop and implement corrective action plans.
• Develop and maintain SOPs, security checklists, and templates to standardize security operations, improve the security-to-operations handoff, and track improvement metrics across programs.

REQUIRED QUALIFICATIONS

• Active TS/SCI security clearance (CI Polygraph preferred).
• 3–5 years of experience as an ACSSO or similar role in security operations, system administration, or IT operations within classified environments.
• Demonstrated understanding of ICD 503 and NIST SP 800-53.
• Detailed familiarity with system accreditation processes, POA&M management, and security documentation (SSPs, SCTG, etc.).
• Experience coordinating with government security counterparts and Authorizing Officials.

PREFERRED QUALIFICATIONS

• Experience with NRO, DoD, or IC security programs and associated systems (DISS, Talon, Scattered Castles, SIMS).
• Familiarity with ICD 705 SCIF standards, ICDs 703/704/505, and Security Classification Guides.
• Willingness to travel on company business (less than 25%).