Senior Security Specialist with Security Clearance

System High Corporation; Linthicum (MD); On-site; USD 120,000 - 180,000; Full time

Job summary

System High Corporation is seeking a Senior Security Specialist (DOD/SCI) to advance national security missions through DoD/DC3 security program leadership. You will contribute to cyber investigations and compliance, working on highly sensitive projects with a skilled team.

The role emphasizes administration of security processes, visitor control, and staff training, requiring TS/SCI and strong communication.

Qualifications

• Active TS/SCI clearance required or ability to obtain one within 12 months.
• Knowledge of Federal and DoD security policies and procedures.
• Experience with security program administration and compliance across DoD/DC3.
• Familiarity with DISS, NBIS, CCTV and access-control systems.
• Strong written and verbal communication, organizational skills.
• Experience with SCIF accreditation preferred or ability to obtain.
• Ability to assemble new hire packages and training materials.

Responsibilities

• Executes administration of DC3 security programs to ensure compliance with DoD/DC3 policies.
• Guides staff on security admin functions including personnel, information, and system security.
• Manages receipt, distribution, inventory, and disposition of classified material.
• Reviews security clearance applications and renewals.
• Maintains physical security procedures for visitors, badges, and facilities.

Skills

TS/SCI clearance

Security policy knowledge

Security program administration

Cyber security operations

Education

Associate degree

Bachelor's degree

Master's degree

PhD

Tools

DISS

NBIS

e-QIP

CCTV software

Access control software

Intrusion detection systems

JWICS/SIPR workstations

Scattered Castles

RAT

Microsoft Office

CDSE account

Document control software

Job description

Description At System High Corporation-a Top Washington-Area Workplace (The Washington Post, 2023-2025), a Top Workplaces Culture Excellence honoree (April 2025), and a three-time VETS Indexes 3-Star Employer-we protect and advance the nation's most critical missions. As part of our team, you'll tackle complex security challenges across SAP, SCI, and Collateral programs. If you're driven by national security, innovation, and integrity, we want to hear from you. Position Overview We are seeking a Senior Security Specialist (DOD/SCI) to join our team to help contribute to our success and help us solve problems with innovation through intelligence. Our Department of Defense (DoD) customer as part of a highly talented, highly motivated, and high-performing team. This position offers a unique opportunity to work at the forefront of cyber investigations, digital forensics, cyber threat analysis, and mission support in a dynamic and collaborative environment. The successful candidate will contribute to protecting national security interests by leveraging technical expertise, analytical skills, and innovative problem-solving to address complex cyber challenges. Individuals who are passionate about cybersecurity, committed to excellence, and eager to make a meaningful impact are encouraged to apply.

• Executes administration and coordination of DC3 security programs to ensure compliance with Department of Defense and DC3 security policies and procedures with minimal supervision.
• Ensures compliance with security standards and provides guidance and support to staff members concerning all security administrative functions such as personnel security, information and system security, COMSEC, physical security and Industrial Security for the processing of DD FM 254s.
• Provides administrative security support associated with the receipt, distribution, inventory, reproduction, and disposition of classified material.
• Experience administering Document Control program.
• Reviews applications for security clearances and clearance renewals.
• Administers and maintains physical security procedures for visitor control, employee identification and safeguard of company facilities, equipment, materials, and employee property.
• Develops and conducts security briefings and security education programs.
• Provides oversight for programs for the protection of classified information as well as proprietary information.
• Assists with preparation, transmittal, and receipt of visitor certifications.
• Process incoming VARs via DISS or other transmissions.
• Experience administering DISS (Defense Information System for Security), (NBIS) National Background Investigation Services, and e-QIP as well as Continuous Enrollment (CE) program.
• Periodically inspects the facility to ensure physical security measures are followed as well as daily EOD checks.
• Contributes to development, review, and disposition of standing operating procedures and continuous improvement initiatives for SCIFs and other TS level requirements.
• Create and processes new hire badges and accesses.
• Assembles new hire packages and training material for incoming personnel.
• Work with Partner Engagement for visitor registration and check in for high level meetings to include foreign visitors.
• Other duties as assigned. Qualifications
• Associates degree and 10+ years of experience; OR Bachelor's degree and 8+ years of experience; OR Master's Degree and 6+ years of experience; OR 3 years with PhD. However, four (4) years of additional relevant experience or specialized training will be considered in lieu of a Bachelor's degree.
• Active TS/SCI Clearance.
• Excellent oral and written communication skills, organizational and interpersonal skills.
• Knowledge of Federal and/or DoD security policies and procedures.
• Experience using the following systems: DISS, NBIS, CCTV Software, Access Control Software, Intrusion Detection Systems, FVS (Foreign Visitor System), JWICS/SIPR workstations, Scattered Castles, RAT (Risk Assessment Tool), Microsoft Tools (Excel, PowerPoint, Word, etc.), CDSE Account, and Document Control Software.
• Detail oriented customer service professional.
• Knowledge or experience with SCIF Accreditation preferred.
• Currently have or the ability to obtain DoD SPeD certification within 1 year of program start. Additional Information
• This job description is not designed to cover or contain all job duties required of the employee. There may be additional activities, duties and/or responsibilities that are required for this position that are not listed in this job description.
• In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.
• System High is a Military friendly employer. Our extensive work on behalf of the U.S. government offers those who have served in uniform an opportunity to continue to serve their country in a new and exciting way while enjoying a successful civilian career.
• System High values the power and strength of diverse backgrounds on the culture and performance of our company. We strive to maintain an inclusive culture to encourage each employee to bring their whole self to the mission.
• System High Corporation is committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender, gender identity or expression, veteran status, or any other characteristic protected by law. We are proud to be an equal opportunity workplace.
• If you require a reasonable accommodation to apply for a position with us, please email
• Legal notices can be viewed on the following PDFs: Know Your Rights: Workplace Discrimination is Illegal ; EPPA Notice ; FMLA Notice