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Contractor Special Access Program Security Officer (CSSO)/Assistant Facility Sec Job in Dayton, Ohio US

Contractor Special Access Program Security Officer (CSSO)/Assistant Facility Sec

Modern Technology Solutions, Inc. - Dayton, OH

Posted: 1/23/2026 - Expires: 4/23/2026

Job ID: 293119529

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Job Description

Modern Technology Solutions, Inc. (MTSI) is seeking an experienced Assistant Facility Security Officer (AFSO) / Contractor Special Access Program Security Officer (CSSO) to support and help lead the Dayton Security Team. This role supports security operations for MTSI's Dayton Industrial Security Program under the National Industrial Security Program (NISP) and provides subject matter expertise across Collateral, SAP, and SCI security disciplines.
The AFSO/CSSO assists the Facility Security Officer (FSO) and Site Security Manager (SSM) in ensuring compliance with applicable U.S. Government and corporate security requirements while safeguarding national defense information.

Key Responsibilities
Security Program Oversight

Assist in oversight and administration of classified security programs in compliance with:
32 CFR Part 117 (NISPOM)
DoDM 5205.07 (SAP Security Manual)
DoDM 5105.21 (SCI Manual)
ICD/ICS 705 Technical Specifications
Director of National Intelligence Directives
MTSI security policies, processes, and procedures
Serve as a subject matter expert across collateral, SAP, and SCI security functions.
Maintain liaison with government agencies, customers, contractors, and internal leadership.

Personnel Security (PERSEC)

Support the FSO and SSM in managing personnel security clearance processes and investigations.
Conduct onboarding and termination security actions for cleared employees.
Facilitate badging and fingerprinting (including SWFT, as required).
Provide cross-functional onboarding support with HR and Recruiting.
Conduct candidate pre-screenings for security suitability.
Access, review, and submit clearance and access actions via DISS and NBIS.
Review and process documentation for SCI and SAP nomination packages.
Maintain personnel security records in SIMS, MTSI Virtual Personnel Records (VPR), and applicable government databases.
Prepare and administer security indoctrinations and debriefings.
Implement and manage visitor control procedures.
Manage SEAD 3 incident reporting, including submission to DCSA/AVS and appropriate cognitive security organizations.

Facility & Physical Security

Assist with daily secure facility operations, including:
Access control systems
Badging
Intrusion Detection Systems (IDS)
Support accreditation and maintenance of:
Collateral Open Storage Areas (OSA) per NISPOM and DCSA requirements
SAPFs and SCIFs per ICD/ICS 705
Assist with physical, personnel, information systems, network, and cryptographic security compliance.

Document Control & Asset Management

Support classified document control and accountability programs.
Manage and maintain:
GSA containers and locks
Secure storage equipment
COMSEC (as assigned)
Conduct annual inventories of accountable classified holdings.
Administer classified material destruction programs.
Serve as the focal point for receiving, processing, distributing, transferring, and controlling classified materials (hardcopy and electronic).
Prepare and submit required status reports to government agencies.

Security Operations & Compliance

Maintain security program records and documentation.
Support self-inspections, compliance assessments, and external audits.
Manage DD Form 254s, Security Classification Guides (SCGs), and classified contract requirements.
Analyze, investigate, resolve, and report security incidents and violations.
Provide guidance and leadership to employees and managers on security compliance actions.
Manage government-furnished equipment (GFE) and materials.
Respond to data calls and support security information systems.

Security Education, Training & Awareness (SETA)

Assist the FSO and Senior Site Security Manager in developing and delivering:
Initial and annual refresher training
Counterintelligence Awareness
Operations Security (OPSEC)
Program-specific and specialized security training
Ensure documentation and execution of all classified security training activities.

General Requirements

Strict adherence to government and corporate security directives.
Maintain confidentiality of:
Classified information
Company proprietary data
PII and CUI
Ensure compliance with contractual security requirements and DD Form 254 guidance.
Assist project managers and staff with interpretation and application of SCGs.
Implement and manage security incident response and reporting procedures.
Support enterprise-wide initiatives led by the Chief Security Officer (CSO), Chief Information Security Officer (CISO), and Director of Corporate Security (DCS).

Required Qualifications

Thorough knowledge of:
32 CFR Part 117 (NISPOM)
SEAD 3
Industrial Security requirements
Proficiency with:
DISS
NBIS / eApp
NISS
Strong organizational, communication, and interpersonal skills.
Proven reliability, integrity, and trustworthiness.
Ability to develop and execute collateral security policies, plans, and procedures.

Desired Skills

Working knowledge of:
DoDM 5205.07 (SAP Manual)
DoDM 5105.21 (SCI Manual)
ICD/ICS 705 Technical Specifications
Experience supporting DoD SAP and/or SCI programs
SIMS database and SWFT fingerprinting experience
Export Control / ITAR experience
Knowledge of information systems security policies and procedures
Ability to develop and execute SAP and SCI security policies, plans, and procedures

Education & Certification

Bachelor's degree with 3 years AFSO/FSO experience, or
8 years total security experience in lieu of a degree
CDSE FSO Program Management for Possessing Facilities Curriculum
Must be obtained within 90 days of start date

Clearance Required: Active TS (SCI eligibility required)






Interesting Work:



Our co-workers support some of the most important and critical programs to our national defense and security.





Values:



Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.





100% Employee Owned:



We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.





Great Benefits - Most Full-Time Staff Are Eligible for:






Starting PTO accrual of 20 days PTO/year + 10 holidays/year

Flexible schedules

6% 401k match with immediate vesting up to $9k annually

Semi-annual bonus eligibility (July and December)

Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account

Up to $10,000 in annual educational reimbursement

Other company funded benefits, like life and disability insurance

Optional zero deductible Blue Cross/Blue Shield health insurance plan





Track Record of Success:



We have grown every year since our founding in 1993.



Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance


MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.


For more information about MTSI, please visit www.mtsi-va.com




MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.

MTSI is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

Job Summary

Employment Type:
Full Time Employee
Job type:
Federal Contractor
Skill Based Partner:
No
Education Level:
Bachelor's degree
Work Days:
Mon, Tue, Wed, Thu, Fri
Job Reference Code
86058678
Salary
N/A
Licenses / Certifications:
N/A
Display Recommended WorkKeys®Recommended WorkKeys®:
Applied Math: 3
Graphic Literacy: 4

Workplace Documentation: N/A