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75 security specialist jobs found

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LMI
Jun 22, 2026
Security Specialist (A&S Security) - TS/SCI required
LMI Arlington, VA
Overview LMI is seeking a Security Specialist who will provide security administrative expertise for our government customer in specialties such as Physical, Information, and Industrial Security. The position will be primarily located at the Pentagon. This position requires an Active TS/SCI clearance.     LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed. Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors—helping agencies navigate complexity and outpace change. Headquartered in Tysons,...
General Dynamics Mission Systems, Inc
Jun 17, 2026
IT Security Specialist
General Dynamics Mission Systems, Inc Scottsdale, AZ
Basic Qualifications Master's degree. Bachelor's degree in a related specialized area or equivalent relevant experience is required, plus a minimum of 2 years of relevant experience.   CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance (Active) is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.     Responsibilities for this Position Job Summary: Are you passionate about systems engineering and cybersecurity? We're looking for a skilled professional to join our team, ensuring secure, compliant, and innovative systems in a classified environment.   What You’ll Experience: Hands-on work with the System Development Life Cycle (SDLC) and Risk Management Framework...
SAIC
Jun 15, 2026
Classification Management Security Specialist
SAIC VA
Description SAIC is seeking an experienced Classification Management Security Specialist to support our Customer's Office of Security. The selected candidate will operate in a dynamic security environment, providing classification management and security support across Customer programs and operations. Note: Candidates must possess an active TS/SCI clearance to be considered. Selected candidates may be eligible for expedited polygraph processing. Key Responsibilities Support security programs and operations by monitoring activities, analyzing metrics, maintaining records, and providing status reports and recommendations. Collaborate with Customer security offices, DoD, Intelligence Community (IC), and contractor personnel to ensure compliance with security requirements. Provide classification management expertise, including guidance on classification, marking, handling, dissemination, and release of classified information. Develop, update, and disseminate security policies,...
General Dynamics Mission Systems, Inc
May 28, 2026
Security Specialist
General Dynamics Mission Systems, Inc Marion, VA
Basic Qualifications Bachelor's degree in a related field or the equivalent combination of education and relevant work experience is required plus a minimum of 2 years of relevant experience; or Master's degree.   CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Developing mission-critical systems that help keep people safe is what we do. At General Dynamics Mission Systems, you’ll be part of the team that helps heroes make a true impact. The work we do is important. The challenges we face are career-defining. The opportunity we can offer is one-of-a-kind. We apply advanced technologies such as...
SAIC
May 13, 2026
PERSEC Security Specialist
SAIC CA
Description SAIC's Horizon 2 contract is seeking an energized and professional PERSEC Security Specialist to support the contract's secure operating facilities in El Segundo, CA. You will support all facets of SAIC's Program and Personnel Security (PERSEC) processes assisting the CPSOs (Contractor Program Security Officer) and provide day-to-day support for Collateral, Sensitive Compartmented Information (SCI), and Special Access Program (SAP) activities. Your background in applying sound and effective Program and Personnel security practices will be the driving force behind the success of our missions for the US Space Force (USSF) and Space Systems Command (SSC). Join us in safeguarding the nation's space assets and exploring the limitless opportunities that await in this dynamic role. You'll have the invaluable opportunity to be mentored in this role, ensuring not only your professional growth, but also the continued excellence of our operations. You will get to use your...
SAIC
Apr 15, 2026
Industrial Security Specialist
SAIC VA
Description SAIC is seeking an experienced Industrial Security Specialist to support our customer's Office of Security. This individual will be required to operate in a diverse security environment. The Industrial Security Specialist Duties will be responsible for the following: Create DoD task order Security Classification Specification (DD Form 254) (or successor forms) as appropriate. Upon request, provide feedback, reviews, and updates of the DD Form 254 (or successor forms). Manage the Industrial Security secure and unclassified customer service phone lines, email accounts, and other forms of communication, as appropriate. Respond to customer/stakeholder requests for assistance/information in a timely manner. Conduct Customer Assistance Visits (CAVs) to CONUS industrial partner locations that re performing classified work off-site in support of customer contracts or other agreements. Perform observations of physical security aspects and provide industrial...
Odyssey Systems Consulting Group
Dec 24, 2025
Full time
Security Specialist - SkillBridge Intern
Odyssey Systems Consulting Group Beavercreek, OH
Position Summary SkillBridge Opportunity! Odyssey is currently seeking a Security Specialist in Dayton, Ohio through the DoD SkillBridge Program. This position supports the maintenance and operation of the industrial security and personnel clearance programs while ensuring company and customer security requirements are met across Odyssey’s core business units. The role interfaces with the Contract Program Security Officer, Director of Security, and personnel at all levels to ensure contract security compliance with DoD SAP/SCI and Intelligence Community directives, NISPOM (32 CFR Part 117), applicable ICDs, and related security guidance, while providing transitioning service members with hands-on civilian security experience.   To be eligible for DoD SkillBridge opportunities, candidates must be active members of the U.S. military with 180 days or fewer remaining prior to their separation date and have completed at least 180 continuous days of active...
SAIC
Jun 08, 2026
Personnel Security PERSEC Specialist
SAIC VA
Description SAIC is seeking an experienced Personnel Security Specialist to support NGA's Office of Security. This individual will be required to operate in a diverse security environment. This program can quickly adjudicate a polygraph for selected candidates with an active TS/SCI. An active TS/SCI is required in order to be considered for this role. This position will be responsible for the following: Provide support and maintenance to established PERSEC programs. Support the execution of the day-to-day PERSEC & Case Initiation Team program. Prepare, support, and administer PERSEC program briefings, as needed. Prepare, write, and present reports/whitepapers, various forms of correspondence, as required. Appropriately and accurately maintain and update databases and files with data entry in a timely manner/real time. Respond in a timely manner to all telephone and/or email actions, questions, or status inquires to include checks of internal and external personnel...
SAIC
Jun 24, 2026
Personnel Security Specialist
SAIC VA
Description SAIC® is a premier Fortune 500 mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, civilian and intelligence markets include secure high-end solutions in mission IT, enterprise IT, engineering services and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. SAIC is looking for a Personnel Security (PERSEC) subject matter expert (SME) to support a highly dynamic and growing program with one of our US Government customers. You will be a part of a large multi-year contract that supports our customer in systems engineering and integration across a broad portfolio of projects. You will come into a program that enjoys a close working relationship with the customer, bringing exquisite technical expertise to bear on real world problems,...
SAIC
Apr 29, 2026
Program Security Specialist
SAIC VA
Description SAIC is seeking an experienced Program Security Officer to support our customer's Office of Security. This individual will be required to operate in a diverse security environment that involves controlled access programs and special access programs. This program can quickly adjudicate a polygraph for selected candidates with an active TS/SCI. An active TS/SCI is required in order to be considered for this role. This position will be responsible for the following: Provide subject matter expertise, assistance, recommendations and hands-on-support to all Special Programs support related activities. Support program development from cradle to grave, including establishment, maintenance, transition, and disestablishment (and archiving). Prepare, review, and staff required documentation (including but not limited to: staff packages, Memorandums of Agreement/Understanding, Appointment Memorandums, classification documentation, reports (TK Annual Report, Site Visit...
SAIC
Jun 24, 2026
Cybersecurity Specialist
SAIC VA
Description SAIC is seeking a highly skilled Cybersecurity Specialist to join our team at Fort Belvoir, Virginia. The Cyber Security Specialist will perform strategic planning and management, and other advanced and specialized cybersecurity functions. This position encompasses critical aspects of security, requiring expertise in areas such as cloud security architecture and enterprise cyber architecture. Responsibilities: Assist in the selection and deployment of hardware, software, and cloud service providers, including authoring and assessing Service Level Agreements (SLAs). Implement application and data migration strategies, ensuring simplicity, efficiency, and adherence to short- and long-term security and capacity requirements. Research, evaluate, recommend, and integrate new cybersecurity tools, techniques, and technologies to strengthen enterprise security architecture in alignment with IT security strategies. Conduct vulnerability scanning, incident response,...
Lockheed Martin
May 29, 2026
Security Representative Senior / Secret / CPSO / Orlando, FL
Lockheed Martin Orlando, FL
Description: Lockheed Martin’s Missiles and Fire Control (MFC) business, the leading provider and pioneer for superior weapon systems, sensors and services is seeking a Security Representative Sr / Contractor Program Security Officer (CPSO) to join the security team in Orlando, FL. What You Will Be Doing As the CPSO your responsibilities will include but are not limited to creating algorithm implementation requirements and developing system models, effectively communicating advanced research concepts to customers, stakeholders, and developers. • Manage security requirements for a complex, large scale and fast-moving Weapon Program. The candidate will be responsible for all aspects of security to include, personnel, physical, technical, policy guidance research, and classification management utilizing the requirements set forth in 32 Code of Federal Regulation Part 117, National Industrial Security Program Operating Manual (NISPOM), DoD 5205.07 Volumes 1-4, DoDM 5200.01, ICD...
Lockheed Martin
May 28, 2026
Security Rep Stf / CPSO / Lvl 4 / Orlando, FL
Lockheed Martin Orlando, FL
Description: You will be the Security Representative Staff / Contractor SAP Security Officer (CSSO) for the Security Team. Our team is responsible for managing security requirements for a large and fast‑moving Special Access Program. What You Will Be Doing As the Security Representative Staff / Contractor SAP Security Officer (CSSO) you will be responsible for safeguarding program assets and ensuring compliance with all applicable security regulations. Your responsibilities will include, but are not limited to: Lead security oversight for the Special Access Program, ensuring compliance with NISPOM, DoD 5205.07, and ICD 705. Conduct personnel, physical, and technical security assessments and provide risk‑managed solutions. Prepare and deliver high‑level program leadership briefings and classified meeting support. Develop and obtain approvals for test‑environment and facility security plans. Manage Program Access Requests, classification management,...
Lockheed Martin
May 27, 2026
Security Representative Senior / CPSO / Orlando, FL
Lockheed Martin Orlando, FL
Description: Lockheed Martin’s Missiles and Fire Control (MFC) business, the leading provider and pioneer for superior weapon systems, sensors and services is seeking a Security Representative Sr / Contractor Program Security Officer (CPSO) to join the security team in Orlando, FL. What You Will Be Doing As the CPSO your responsibilities will include but are not limited to creating algorithm implementation requirements and developing system models, effectively communicating advanced research concepts to customers, stakeholders, and developers. • Manage security requirements for a complex, large scale and fast-moving Weapon Program. The candidate will be responsible for all aspects of security to include, personnel, physical, technical, policy guidance research, and classification management utilizing the requirements set forth in 32 Code of Federal Regulation Part 117, National Industrial Security Program Operating Manual (NISPOM), DoD 5205.07 Volumes 1-4, DoDM 5200.01, ICD...
Lockheed Martin
May 26, 2026
Industrial Security Rep / CSSO
Lockheed Martin Grand Prairie, TX
Description: Lockheed Martin’s Missiles and Fire Control (MFC) business, the leading provider and pioneer for superior weapon systems, sensors and services is seeking an Industrial Security Professional / Contractor SAP Security Officer (CSSO) to join the security team in Grand Prairie, TX. You will perform program security duties supporting multiple special access programs. What You Will Be Doing As the Security Representative you will perform duties as the Alternate Contractor SAP Security Officer (ACSSO) or Contractor SAP Security Officer (CSSO) for multiple complex and growing programs. You will be responsible for all aspects of security to include personnel, physical, technical, subcontractor management, classification management, inspection readiness, OPSEC requirements, and partnering with program management. The selected candidate will develop creative security solutions to meet mission requirements while ensuring compliance with our customers’ expectations and...
SAIC
Apr 29, 2026
Program Analyst
SAIC IN
Description We are seeking a highly motivated and detail-oriented Physical Security Specialist to join our team. This role ensures that all physical security measures are implemented, monitored, and maintained to safeguard assets, information, and personnel in accordance with DoD regulations and standards. The ideal candidate will have a thorough understanding of physical security practices, excellent problem-solving skills, and the ability to work collaboratively with security teams and government agencies to maintain compliance and mitigate risks. This is an exciting opportunity for professionals dedicated to protecting national security and ensuring the safety of personnel and property. Key Responsibilities: Develop, implement, and enforce physical security policies, programs, and procedures. Conduct physical security surveys, vulnerability assessments, and recommend measures to address identified risks or security gaps. Oversee entry and exit control procedures,...
SAIC
Jun 08, 2026
Facility Security Officer Key control specialist
SAIC CA
Description SAIC Security professionals support a collective of over 24,000 employees extending across 20 countries. Our employees are our core, bolstered by 15,000 clearances, working across numerous classified and unclassified locations. We pride ourselves on cultivating a workplace environment that encourages proactive thinking and fosters strong internal collaborations. Our dedication is deeply rooted in the professional growth of our team through comprehensive upskilling programs, targeted training initiatives, and consistent mentoring opportunities, all designed to nurture a diverse pool of talent. Additionally, we maintain an active presence in the security community, positioning ourselves as visible and influential thought leaders who shape industry standards and best practices. Our offerings encompass a full spectrum of security functions, including business group support, personnel security, information assurance, insider threat, counterintelligence, physical security,...
Lockheed Martin
May 27, 2026
Security Assistant Specialist, Orlando, FL
Lockheed Martin Orlando, FL
Description: What you will be doing: -Review Personnel Security Clearance Questionnaires and associated documentation for submission to the Government -Initiate new and periodic investigation requests -Process eligibility changes, escalate aging tickets and requests, mail security documents, and electronic fingerprint processing. - Must have an Interim Secret security clearance prior to start and the ability to maintain a Secret security clearance What’s In It For You From onsite to remote, we offer flexible work schedules to comprehensive benefits investing in your future and security, Learn more about Lockheed Martin’s comprehensive benefits package here. Do you want to be part of a company that empowers employees to think big, lead with a growth mindset, and make the impossible a reality? We provide the resources and give you the flexibility to enable inspiration and focus -if you have the passion and courage to dream big, work hard, and have fun doing what you love...
SAIC
Jun 24, 2026
Technical Support Specialist
SAIC CA
Description SAIC is a trusted leader in delivering advanced commandandcontrol capabilities across the Department of the Air Force, bringing deepexpertisein howcuttingedgetechnologies are engineered, secured, and delivered to the fight. At the center of this mission, the Common Mission Control Center (CMCC) unifies data, sensors, mission applications,cloudbasedservices, and emerging AIenabled automation to give warfighters a decisive edge-turning complex, multidomain information into fast, clear, and actionable decisions in the moments that matter most. The CMCC System Facilitator contract positions SAIC to accelerate how new capabilities are integrated, tested, secured, and transitioned into operational use, working sidebyside with operators, engineers, Capability Providers, and government teams to ensure every delivery strengthens mission readiness. This effort offers the chance to directly shape how the Air Force sees, decides, and acts across all domains-making a tangible and...
LMI
Jun 23, 2026
Data Management & Analytics Specialist - Clearance Required
LMI Scott Air Force Base, IL
Overview LMI is currently seeking a  Data Management and Analytics Specialist  to manage, analyze, and derive actionable insights from organizational data from experimentation activities across USTRANSCOM, located at Scott AFB, IL. This is an onsite position and cannot be worked remotely.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors—helping agencies navigate complexity and outpace change. Headquartered in Tysons,...
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