Sierra Nevada Corporation

Security Specialist III: Contractor Special Security Representative (CSSR) (Deploy Only)

Shalimar, FL
Full-time
Posted Oct 16, 2026

Skills

Communication
Compliance
Customer Service
Data Entry
Operations
SAP

Job description

Are you looking for an opportunity to use your skills in a variety of specialty areas? Come join us! As a Security Specialist III, you will support all facets of SNC's Security Program, including personnel security, document control, physical security, and security investigations. You will be responsible for safeguarding sensitive information and assets, supporting security awareness and training and participating in compliance assessment activities. You will also have the opportunity to expand your security knowledge across a wide range of security disciplines and participate in internal security working groups and special project initiatives.

The Mission Solutions and Technologies (MST) business area provides affordable, turn-key command/control, communications, integrated ISR, force protection and security solutions worldwide. The MST team has a long legacy of supporting the Department of Defense, Department of Homeland Security, commercial and international customers with years of experience in platform operations, engineering and full lifecycle management across domains – air, land, sea, space and cyber.

Responsibilities:

•Provide Security customer support to SNC personnel, visitors and customers.

•Manage and enhance administrative security processes.

•Manage classified materials, ensuring adherence to regulations.

•Support the development and implementation of security compliance procedures.

•Conduct security awareness education and training activities.

•Participate in both internal and external security compliance assessments and audits.

•Manage security documentation and records.

•Respond to security incidents, and support investigations and reporting requirements.

•Coordinate visitor control and facility security operations.

•Support the development and updating of security policies and procedures.

•Mentor and train junior security personnel.

Qualifications You Must Have:

•Bachelor’s degree in a related field.

•4 years of experience in a related field.

•Relevant experience can be considered as a substitute for the required educational qualifications.

•Active security clearance and ability to obtain and maintain any Sensitive Compartmented Information (SCI) or Special Access Programs (SAP) accesses required for the role.

•Detailed understanding of security regulations, compliance and best practices.

•Working knowledge of 32 CFR 117: National Industrial Security Program (NISPOM) or SCI/SAP regulations applicable to the role.

•Strong verbal and electronic communication skills.

•Self-motivated.

•Strong attention to detail.

•Ability to deploy for an extended amount of time to various OCONUS operating locations.

•Ability to meet current DoD and Combatant Command requirements for deployed locations.

•Successfully pass a pre-deployment medical assessment.

•Must be willing and able to work extended hours, holidays, and shift schedules as required.

•Current/ valid passport and be able to obtain a visa to travel internationally.

•Willing to deploy OCONUS on an approximate 60/60 rotation.

•An active Top Secret with SCI eligibility U.S. Security Clearance is required

Qualifications We Prefer:

•Experience in the Military or Aerospace and Defense industry.

•Advanced knowledge of industrial security practices.

•Experience with security information management systems.

•Experience with access control/visit control/badge management systems and software.

•Familiarity with Intelligence Community Directives (ICD) regulations.

•Experience with SCI or SAP Security.

•Defense Information System for Security (DISS)/National Industrial Security System (NISS) experience.

Essential Functions:

•Must be able to handle classified information securely. **Remove for Technical Security Specialist

•Ability to work in an office environment, with occasional travel as required.

•Capable of sitting for extended periods and working on a computer.

•Dexterity to handle documents and perform electronic data entry.

This posting will be open for application for a minimum of 5 days and may be extended based on business needs.

SNC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, tuition reimbursement, and more .

IMPORTANT NOTICE:

This position requires current/active Top Secret with SCI eligibility U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. Citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.

Learn more about the background check process for Security Clearances.

SNC is a global leader in aerospace and national security committed to moving the American Dream forward. We’re known and respected for our mission and execution focus, agility, and disruptive and rapid innovation. We provide leading edge technologies and transformative solutions that support our nation’s most critical security needs. If you are mission-focused, thrive in collaborative environments, and want to make our country stronger with state-of-the-art technologies that safeguard freedom, join our team!

SNC is an Equal Opportunity Employer committed to an environment free of discrimination. Employment decisions are made based on merit without regard to race, color, age, religion, sex, national origin, disability, status as a protected veteran or other characteristics protected by law.