May 26, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
The ideal candidate will apply operational security (OPSEC), counterintelligence, cyber defense, and threat principles to protect sensitive capabilities to ensure the survivability of U.S. assets in contested environments. L3Harris Technologies is currently seeking a Senior Specialist, Systems Engineer – Mission Protection Specialist to support a high-visibility, mission-critical national security program.
June 18, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
Lanham, Maryland, Maryland3 days ago
Learn more about Beacon Hill and our specialty divisions, Beacon Hill Associates, Beacon Hill Financial, Beacon Hill HR, Beacon Hill Legal, Beacon Hill Life Sciences and Beacon Hill Technologies by visiting www.bhsg.com. Our niche brands offer a complete suite of staffing services to emerging growth companies and the Fortune 500 across market sectors, career specialties/disciplines and industries.
Washington, DC30+ days ago
Assist Business Development for Unmanned System capture efforts for new business opportunities, contract re-competes, and task order pursuits in the area of Surface Warfare Account, these include (but not limited to) Naval Expeditionary Combat Command, US Marine Corps, Naval Surface Warfare, Office of Naval Research, US Coast Guard. Develops capture strategy including business solution for pursuit of opportunities; identifies potential customers, competitive assessments, teaming suppliers, and prices-to-win; participates in bid and proposal activities.
Arlington, VA30+ days ago
Our capabilities in cybersecurity, network architecture, reverse engineering, software and hardware development uniquely enable us to support sensitive missions for the U.S. military and federal agency partners. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class.
HII-Mission Technologies is looking for an Operational Specialist (OS) supporting program flight operations as an Intelligence, Surveillance, andReconnaissance (ISR) Subject Matter Expert (SME) working in a small, close-knit crew environment providing expertise in support of missionrequirements. Conduct real-time communication and distribution of multi-source information with aircrew and ground assets during all phases of flight via Tactical Data Link and chat (e.g., Link-16/mIRC) or beyond line of site satellite communications (BLoS SATCOM).
Fort Meade, MD30+ days ago
9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Washington, DC30+ days ago
You will develop new content, update existing resources, and monitor regulatory developments to ensure both our content library and regulatory monitoring tool remain accurate and up to date. From keeping employees informed of critical policies and procedures to monitoring regulations and conducting audits, our solutions keep firms in the know — empowering better decisions and stronger performance.
Washington, DC30+ days ago
Security Specialist III perform additional security duties as required to meet the SOC's operational needs, including, but not limited to attending meetings, providing responses to internal and external requests, conducting security‑related research, conducting personnel security interviews, and information gathering and exchange via telephone, internet, and mail. Security Specialist III - Personnel Security Adjudication Specialist adjudicate government background investigations for individuals requiring a suitability, fitness, and/or national security determination.
Washington, DC30+ days ago
Security Specialist II - Risk Assessment Specialist will perform additional security duties as required to meet the SOC's operational needs, including, but not limited to attending meetings; providing information to internal and external requests; conducting security-related research; conducting personnel interviews; initiate and review completed eApp forms; and information gathering and exchange via telephone, internet, and mail. Security Specialist II - Risk Assessment Specialist compiles and maintains accounting and accurate data of FCC contractor population, contracting vendors, and FCC CORs to maintain accurate information in the personnel management case system.
Ideal applicants have hands-on experience in roles such as Facility Security Officer (FSO), Special Security Officer (SSO), Certified SCIF Security Officer (CSSO), Site Security Representative (SSR), or Government SAPF Security Officer (GSSO). Minimum five (5) years of experience supporting SCIF or SAPF security programs, including the ability to independently conduct security administration, self-inspections, and government accreditation inspections without guidance or training.
Washington, DC30+ days ago
Security Specialist I perform additional security duties as required to meet the SOC's operational needs, including, but not limited to attending meetings; providing information to internal and external requests; conducting security-related research; updating data in the personnel management case system; and information gathering and exchange via telephone, internet, and mail. Tracking all individuals who have; 1) been processed for an HSPD-12 credential, and 2) have received a "temp" badge, as well as the status of files sent to the HSPD-12 central badging office (GSA/USAccess), or who were scheduled for badge processing, but for any reason were not provided a badge.
Washington, DC14 days ago
Personnel Security Specialist will utilize Electronic Questionnaires for Investigations Processing (eApp), Central Verification System (CVS), Personnel Investigations Processing System (PIPS), and other applicable personnel security systems to validate investigation requirements and reciprocity eligibility. Must have completed the Office of Personnel Management (OPM) Essentials of Suitability Adjudication Program, Basic Adjudication courses, or similar applicable adjudication/suitability training.
Support facility security management duties including but not limited to key / control management, facility security inspections and assessments, alarm response including implement receipt/dispatch as applicable, and maintaining Intrusion Detection System and other facility security systems operability. The Junior SS shall monitor and control access to facility(s) and restricted areas under their responsibility by checking personnel passes, Common Access Cards (CAC) and validating security clearances utilizing DISS or other security database systems and visit requests.
Baltimore, MD30+ days ago
We are seeking a Senior Systems Security Specialist to lead and execute offensive security initiatives, including advanced penetration testing and red team engagements across networks, applications, APIs, and cloud environments. Responsibilities: Conduct internal and external penetration testing of networks, web applications, APIs, and cloud environments to uncover security vulnerabilities and exploit paths.
Washington, DC30+ days ago
Personnel Security Specialists will process security clearances by collecting, reviewing, submitting, and tracking required documentation. Knowledge of maintaining personnel security records, databases, and tracking systems (e.g., JPAS, DISS, or local equivalents).
Washington, DC30+ days ago
The Physical Security Specialist is responsible for designing, implementing, and maintaining security measures for Sensitive Compartmented Information Facilities (SCIFs). The Physical Security Specialist will conduct routine inspections, assessments, and audits to verify SCIF integrity and compliance.
Washington, DC13 days ago
Certain Military Spouses: Permanent Change of Station (PCS) orders authorizing you to accompany the Military member to the new duty permanent station; OR verification of the members 100% disability (VA Letter); and/or verification of the members death while on active duty (DD-1300 and Death Certificate) AND verification of the marriage to the service member (i.e., a marriage license or other legal documentation verifying marriage). To apply for this position, you MUST provide a complete application package which includes: Your RESUMEshowing all relevant work experience (paid and unpaid) including: duties performed; full name and address of the each employer; start and end dates (month/day/year); work schedule (part-time, full-time, number of hours if intermittent); salary; and any completed education and training (program title, subject area, number of hours completed, and completion date).
Arlington, VA30+ days ago
Minimum of 16+ years of information security experience with demonstrated expertise in cloud security• Minimum of 5+ years of DoD security experience in enterprise environments• Minimum of 3+ years of hands-on experience with cloud security frameworks and implementations• Complete understanding and experience implementing requirements of the NISPOM and ICDs• Knowledge of cloud security principles and FedRAMP requirements• Meets the Core and Additional Knowledge, Skills, and Abilities Tasks (KSATs) defined in the DoD Cyber Workforce Framework• Demonstrated ability to develop solutions to complex security problems• Proven ability to work in fast-paced, deadline-driven environments• Excellent verbal and written communication skills for technical and executive audiences• Recent experience with security management policies and procedures• Proficiency with Microsoft Office Suite and security management tools. CERTIFICATION REQUIREMENTS:
Required: CISSP, CISM, or equivalent DoD Directive 8570 compliant certification; CompTIA Security+Desired: GCIH, GSEC, CISSP, CISA, FITSP-M, GCSA, GISF, SSCP, CEH, or other advanced security certifications.
Washington, Washington, DC30+ days ago
The specialist is expected to evaluate security solutions to ensure they meet security requirements for processing up to classified information, and supervise and/or maintain the operational security posture for an information system or program. The specialist should demonstrate a working knowledge of the Risk Management Framework (RMF) process and/or include prior experience with the Defense Information Assurance & Certification Accreditation Process (DIACAP).
Washington, Washington, DC30+ days ago
The specialist is expected to evaluate security solutions to ensure they meet security requirements for processing up to classified information, and supervise and/or maintain the operational security posture for an information system or program. The specialist should demonstrate a working knowledge of the Risk Management Framework (RMF) process and/or include prior experience with the Defense Information Assurance & Certification Accreditation Process (DIACAP).
Baltimore, MD30+ days ago
At least three (3) years' experience with security-related data systems such as the National Industrial Security System (NISS), and the Defense Information System for Security - Joint Verification System (DISS-JVS), OR three (3) years' experience in intelligence or counterintelligence. · The ability to set well-defined and realistic personal goals and display a high level of initiative, effort, and commitment towards completing assignments in a timely manner.
Washington, DC12 days ago
Participate in required emergency programs working groups including, but not limited to: the Inter-Agency Continuity Working Group, the DHS Continuity Working Group, and the DHS Security Emergency Preparedness Working Group. Establish and maintain the DHS/S&T Continuity Program based on a multi-year strategy and program management plan (to include risk management) in accordance with applicable Federal requirements, specifically Federal Continuity Directives 1 & 2 and the Federal Mission Resilience Strategy.
Springfield, VA30+ days ago
li>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 Reports, program metrics, etc.), Memorandums for Record, Taskers, etc. Understand and enforce procedures for handling SCI Controlled Access Programs (CAP's), Special Access Programs (SAP), Alternative Compensatory Control Measures (ACCM) and other collateral materials IAW applicable security policies and regulations.
Springfield, VA30+ days ago
Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. Provide timely, properly edited CAV trip reports that include a list of meeting attendees and a synopsis of topics of discussion, items of interest, and follow-on actions/due outs, when applicable.
Arlington, VA30+ days ago
This position ensures information systems security compliance and manages security controls for DoD cloud migration projects while coordinating security accreditation activities and maintaining ongoing security posture. INFORMATION SYSTMES SECURITY OFFICER - CLOUD SECURITY SPECIALIST (NAUT): Bowhead seeks an Information Systems Security Officer (ISSO Cloud) to support our customer on the Nautical contract in the Arlington, VA area.
Ft. Meade, MD30+ days ago
This individual shall support the Personnel Security Division in assessing, validating, and certifying the trustworthiness of DIA and designated DoD-affiliated personnel for clearance access to Sensitive Compartmented Information (SCI) through case management, adjudication, to include due process in an accurate and timely manner. • Familiarity and experience utilizing Scattered Castles, eQIP, JPAS, JVS, DCII, and CVS; initiating and scoping, T5R background investigations; use of DPRIS, OPM Portal; performing National Agency Checks and Credit Checks.
Springfield, VA22 days ago
Physical Demands: While performing the duties of this job, the employee is occasionally required to stand; walk; sit; use hands and fingers to handle, or feel objects, tools or controls; use fingers and hands to type or write; reach with hands and arms; talk or hear; taste or smell. The Personnel Security Specialist (PSS) completes personnel security suitability intake tasks in support of DHS Federal Protective Services (FPS), Personnel Security Division (PSD).
Springfield, VA30+ days ago
Physical Demands: While performing the duties of this job, the employee is occasionally required to stand; walk; sit; use hands and fingers to handle, or feel objects, tools or controls; use fingers and hands to type or write; reach with hands and arms; talk or hear; taste or smell. The Personnel Security Specialist (PSS) completes personnel security suitability intake tasks in support of DHS Federal Protective Services (FPS), Personnel Security Division (PSD).
Crystal City, VA30+ days ago
As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space-delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. If youre an individual with a disability or a disabled veteran who needs assistance using our online job search and application tools or need reasonable accommodation to complete the job application process, please contact us by phone at 310.336.5432 or by email at peoplemangmnt.mailbox@aero.org.
Arlington, VA30+ days ago
Youll collaborate with dedicated professionals while ensuring compliance with federal security regulations, including the National Industrial Security Program Operating Manual (NISPOM). This is an exciting opportunity to work on complex, mission-driven government programs in a dynamic, fast-paced environment where your expertise truly matters.
In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.
Fort Meade, MD14 days ago
Semper Valens Solutions, Inc. (SVS) is a Service-Disabled Veteran Owned Small Business (SDVOSB) providing Cost Effective Software and Systems Engineering, Field Support, Training and Full Life cycle Support Management to the DOD and VA community. Serves as the senior cybersecurity and information assurance lead responsible for protecting information systems, ensuring compliance with federal and organizational security requirements, and guiding risk management activities across IT programs.
Springfield, VA12 days ago
Minimum 10 years of experience applying Executive Orders 12333, 13526, and 13556; Intelligence Community Directives (ICDs) 703 and 710; and DoD Manual 5200.01 requirements related to classified national security information, Controlled Unclassified Information (CUI), and information security. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services.
Springfield, VA19 days ago
Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. Respond in a timely manner to all telephone and/or email actions, questions, or status inquires to include checks of internal and external personnel security databases.
Washington, DC30+ days ago
This policy applies to all terms and conditions of employment, including, but not limited to, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities, and qualifications required of the contractor assigned to this position.
Arlington, VA30+ days ago
Aether Aerospace is seeking an experienced Personnel Security (PERSEC) Specialist to join our team and contribute to our success in maintaining technological superiority through protecting the Government's most advanced technologies from adversarial compromise. The Personnel Security (PERSEC) Specialist will provide personnel security support to programs that require Special Access Program Facilities (SAPF) in accordance with the NISPOM and DOD 5205.07,
Arlington, VA30+ days ago
Aether Aerospace is seeking an experienced Personnel Security (PERSEC) Specialist to join our team and contribute to our success in maintaining technological superiority through protecting the Government's most advanced technologies from adversarial compromise. The Personnel Security (PERSEC) Specialist will provide personnel security support to programs that require Special Access Program Facilities (SAPF) in accordance with the NISPOM and DOD 5205.07,
Washington, DC27 days ago
NFF is a Cisco Gold Integrator Partner, Splunk Partner, Arista Partner, Cohesity Partner, Apptega Partner, NetApp Gold Partner, VMware Enterprise Partner, Alloterra Labs Partner, Axis Communications Partner, Asimily Partner, Signify Partner, Rapid7 Partner, Foresite Partner, Arctic Wolf Partner, Microsoft Certified Silver Partner, and Dell Solution Provider Partner. Strong understanding of security concepts and technologies related to Identity and Access Management (IAM), security engineering, network security design, security operations, security architecture, general engineering processes, cloud security, data loss protection, zero trust, DevSecOps and vulnerability management.