Contractor Special Security Officer (CSSO)

Liberty Alliance, LLC; Bay St. Louis (MS); On-site; USD 95,000 - 135,000; Full time

Job summary

Liberty Alliance, Inc. seeks a Contractor Special Security Officer (CSSO) to lead on-site security for a classified DoW facility in Mississippi. The CSSO will manage daily security operations, access control, and safeguarding of classified information in coordination with Government authorities.

The role requires Top Secret clearance with SCI eligibility, five years of DoW/IC security experience, and the ability to operate independently on-site in Bay St. Louis, MS.

Qualifications

• Bachelor’s degree in security management, criminal justice, business administration, or related field or equivalent experience.
• Minimum five years of DoW/IC security experience with SCI access administration or facility operations.
• Active Top Secret clearance with SCI eligibility and access requirements.
• Experience as CSSO/SSO/SSR or similar role.
• Familiarity with ICD 705, SCI policies, DoW requirements, and safeguarding procedures.
• Experience with personnel access management, visitor coordination, and incident reporting.
• Knowledge of DISS and related government security systems.
• Strong written/verbal communication and ability to work independently on-site.

Responsibilities

• Manage day-to-day classified facility operations: entry, visitors, procedures, records.
• Oversee access control, intrusion detection, alarm coordination, and after-hours response.
• Conduct security inspections, document deficiencies, track actions, support emergency procedures.
• Maintain accreditation records and coordinate with government officials on inspections and changes.
• Verify clearances, SCI eligibility, access authorizations, and need-to-know.

Skills

DoD/IC security

SCI eligibility

Independent security management

Written & verbal comms

On-site security operations

Education

Bachelor’s in security/related

Tools

DISS

ICD 705

Security systems

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Contractor Special Security Officer (CSSO)

FullTime Management Bay St. Louis, MS, US

Liberty Alliance, Inc. is seeking an experienced Contractor Special Security Officer (CSSO) to serve as the primary and sole on-site security representative for a classified facility supporting Department of War (DoW) programs in Mississippi. The CSSO will independently manage daily classified facility security operations, personnel and visitor access, physical security coordination, classified information safeguarding, documentation, and inspection readiness. The CSSO will coordinate with designated Government security authorities while operating within assigned authority and applicable security requirements.

Key Responsibilities — Classified Facility Operations & Physical Security

• Manage day-to-day classified facility operations, including authorized entry, visitor control, opening and closing procedures, end-of-day security checks, and facility security records.
• Oversee access control, intrusion detection and alarm coordination; arrange authorized testing, maintenance, repairs, and after-hours response as required.
• Conduct routine physical security inspections, document deficiencies, track corrective actions, and support emergency response procedures.
• Maintain classified facility accreditation-related records and coordinate inspections, reaccreditation activities, and proposed facility changes with authorized Government security officials.

Personnel Security & Classified Information

• Verify clearances, SCI eligibility, access authorizations, and need-to-know before permitting access; maintain access rosters and visitor records.
• Coordinate access requests, visitor certifications, SCI nominations, indoctrinations, and debriefings with authorized Government personnel; perform these actions only when expressly delegated.
• Use DISS and other authorized Government security systems as appropriate to assigned responsibilities and permissions.
• Ensure classified information is appropriately marked, handled, safeguarded, stored, transmitted, accounted for, and destroyed in accordance with applicable requirements.
• Coordinate personnel security reporting, adverse information, foreign contact/travel reporting, and insider threat awareness through established Company and Government channels.

Security Compliance, Incident Response & Coordination

• Maintain classified facility security SOPs, emergency action plans, security logs, training records, and other required documentation.
• Conduct security briefings and awareness activities, periodic self‑inspections, and corrective‑action follow‑up.
• Respond 24/7/365 within one hour to report security alarms, incidents, suspected compromises, and violations using established escalation procedures.
• Serve as the primary on‑site security point of contact; coordinate with the Government SSO, cognizant security authorities, program management, and facility personnel.
• Support classified meetings, visits, inspections, and mission activities; coordinate with designated COMSEC personnel when applicable.
• Exercise independent judgment on routine security matters and elevate decisions requiring Government approval or authority beyond the CSSO’s delegation.
• Complete other duties as assigned to support Liberty Alliance’s mission, strategies, and organizational values.

Required Qualifications

• Bachelor’s degree in security management, criminal justice, business administration, or a related field, or equivalent relevant experience.
• Minimum of five years of relevant DoW or Intelligence Community security experience, including demonstrated hands‑on SCI security administration or classified facility operations experience.
• Active Top Secret security clearance with current SCI eligibility and ability to obtain required program access.
• Experience independently managing classified facility security responsibilities or serving in a CSSO, SSO, SSR, or comparable role.
• Working knowledge of ICD 705, applicable SCI security policies, DoW security requirements, and classified information safeguarding procedures.
• Experience with personnel access management, visitor coordination, security documentation, physical security systems, inspections, and incident reporting.
• Familiarity with DISS and other applicable authorized security systems.
• Strong written and verbal communication, organization, discretion, and ability to work independently as the sole on‑site security representative.
• Ability to work on‑site in Mississippi and provide schedule flexibility for inspections, security incidents, and mission activities as required.

Preferred Qualifications

• Prior CSSO or SSO experience supporting DoW, USSOCOM, or Intelligence Community programs.
• Experience supporting classified facility accreditation, facility modifications, inspections, and corrective‑action management.
• Familiarity with ICD 704, DoDM 5105.21, and NISPOM (32 CFR Part 117), as applicable to assigned duties.
• Relevant DCSA or Intelligence Community security training and experience coordinating with remote security leadership.