Appian Security Developer - CLEARED The Squires GroupAppian Security Developer - CLEAREDArlington, VirginiaRemoteThis role will focus on implementing custom development, addressing cybersecurity requirements, and supporting security gap remediation efforts to help maintain compliance within a secure environment. Overview: The Squires Group is seeking an Appian Security Developer to support the development and security enhancement of an Appian-based process automation solution.
Alternate Facility Security Officer - JobID-0220 Innovative Defense TechnologiesAlternate Facility Security Officer - JobID-0220Arlington, Virginia$74,000–$116,000 / yearCoordinate secure outbound transportation logistics (e.g., FedEx Custom Critical, Defense Courier Service), including proper inner/outer wrapping, labeling, and preparation of cryptographic or classified material for cleared couriers. Innovative Defense Technologies (IDT), a leading defense technology company, is seeking an Alternate Facility Security Officer (AFSO) to be part of our Security team and based out of our Arlington, VA location.
Security Systems Training Lab Manager Chenega Security International, LLCSecurity Systems Training Lab ManagerChantilly, VirginiaFull timeThe employee may work around equipment racks, control panels, workbenches, ladders, cabling, servers, tools, and electronic test equipment, and must be capable of performing hands-on installation, wiring, configuration, troubleshooting, and maintenance of laboratory systems and equipment. This role serves as the primary technical lead for the training lab, ensuring all access control, video surveillance, intrusion detection, networking, server, and training systems remain fully operational and ready to support instruction.
Protective Security Operations Chief (Psoc) - WPS III (Somalia) Acuity InternationalProtective Security Operations Chief (Psoc) - WPS III (Somalia)Reston, VA, VACommunicate with entities outside the protection cell using a variety of voice‑ and text‑based communications technologies (e.g., local cell phone, regional and global satellite phone, tactical military radio, UHF/VHF radio). Must maintain physical fitness readiness that includes, but is not limited to: medium and/or long‑distance running, bench presses, agility runs, push‑ups, sit‑ups, and stretching.
Security Operations Analyst – Senior C3ELSecurity Operations Analyst – SeniorWashington, DCEducation: Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or related field preferred, OR an Associate's degree plus ten (10) years of recent specialized experience, OR 12 years of recent specialized experience. This role is responsible for monitoring, detecting, and responding to cybersecurity threats while ensuring the protection of organizational systems and data.
Security Guard - Part Time Visitor Management Allied UniversalSecurity Guard - Part Time Visitor ManagementReston, VirginiaPart timeAs a Front Desk Security Professional with Allied Universal, you will be the welcoming presence at a dynamic location, greeting visitors, managing access, monitoring activity, and responding to security-related concerns. Overview: Allied Universal®, North America’s leading security and facility services company, offers rewarding careers that provide you a sense of purpose.
NewDHS Sr. Operational Technology (OT) Security Engineer OneZero SolutionsDHS Sr. Operational Technology (OT) Security EngineerWashington, DCThe result of these efforts will be that the systems meet all the requirements for ATO approval before they are officially submitted to the Office of Chief Information Officer (OCIO).Job SummaryServe as the Cybersecurity Assessment Team's principal Operational Technology SME.Participate in the development and implementation of comprehensive Cybersecurity program strategies, including OT security engineering design review, vulnerability assessments, penetration testing, and incident response planning. Operational Technology (OT) Security EngineerLocation: NCRClearance: TS /SCIOneZero Solutions is on contract to provide division-wide support for Federal Information Security Modernization Act (FISMA) compliance, execution of the Risk Management Framework (RMF) process to achieve and maintain Authority to Operate (ATO) security authorizations, and deliver cyber security compliance for DHS operational mission systems.
Information Systems Security Officer (ISSO) II TAC Integrated SolutionsInformation Systems Security Officer (ISSO) IIDistrict of ColumbiaThe primary function is working within Special Access Programs (SAPs) supporting Department of Defense (DoD) agencies, such as HQ Air Force, Office of the Secretary of Defense (OSD) and the Military Compartments’ efforts. The position shall have the detailed knowledge and expertise required to manage the security aspects of an information system and, in many organizations, is assigned responsibility for the day-to-day security operations of a system.
Information System Security Engineer Select Search AssociatesInformation System Security EngineerFairfax, VirginiaInformation Assurance (IA) and Information Security (InfoSec) experience working with Intelligence Community (IC) customers, which includes developing and reviewing security concept of operations, systems security plans, security control assessments, contingency plans, configuration management plans, incident response plans, plan of actions and milestones, risk management plans, vulnerability and compliance scanning, and/or vulnerability management plans. The candidate will contribute to the team’s successful Assessment and Authorization (A&A) process activities (ICD-503 RMF) and related documentation such as security concept of operations, systems security plans, security control assessments, contingency plans, configuration management plans, incident response plans, plan of actions and milestones, risk management plans, vulnerability and compliance scanning, and/or vulnerability management plans.
Information System Security Officer (Isso) CONTACT GOVERNMENT SERVICESInformation System Security Officer (Isso)Arlington, VA$120,000–$200,000 / yearAs a FSR ISSO, you will be embedded on-site with U.S. Government customers to ensure the secure, compliant operation of a production-grade data and application platform used in mission-critical environments. Here at CGS we value honesty through hard work and self-awareness, professionalism in all we do, and to deliver the best quality to our consumers mending those relations for years to come.
Cybersecurity Information Security Assessor GD Information TechnologyCybersecurity Information Security AssessorChantilly, VirginiaExpert knowledge of commonly used cybersecurity systems to include, but not limited to, DoW Host Based Security System (HBSS), Assured Compliance Assessment Solution (ACAS), Continuous Monitoring and Risk Scoring (CMRS), Joint Incident Management System (JIMS), and Enterprise Mission Assurance Support Service (eMASS). Provide support services for protecting the Department of Defense Information Network (DoDIN) from cyber threats, both foreign and domestic, using cybersecurity systems, in combination with Techniques, Tactics, and Procedures (TTP) and information sharing with DoW, Department of Homeland Security (DHS), and other federal agencies.
Security Officer Full Time Access Control Allied UniversalSecurity Officer Full Time Access ControlLeesburg, VirginiaFull timeProvide customer service to employees, contractors, visitors, and delivery personnel by carrying out security-related procedures, site-specific policies, and when appropriate, emergency response activities at a technology data center location. As an Access Control Officer at a dynamic technology location, you will manage entry points, verify credentials, monitor access activity, and respond to security-related concerns.
Security Officer TS SCI Clearance Required Patrol Allied UniversalSecurity Officer TS SCI Clearance Required PatrolArlington, VirginiaJoin Allied Universal as an Unarmed Patrol Officer at a dynamic tech-focused location, where you will monitor assigned areas, conduct routine patrols, maintain a visible presence to help deter security-related incidents, and deliver exceptional customer service and communication. Conduct regular and random foot and/or vehicle patrols throughout offices, common areas, parking areas, and perimeter points to help identify security-related concerns and report issues promptly.
Personnel Security Officer LeidosPersonnel Security OfficerChantilly, VirginiaInitiate, track, and document all aspects of personnel security functions for the IC including, but not limited to processing security clearances, reinvestigations, continuous vetting, outgoing visit requests, SOP/EOD coordination, badge renewals. Collaborate, communicate, and interface with applicants; Security professionals with Leidos; government entities, and customer sites; Program Managers; and Leidos business areas to provide status reports on various requests and activities.
COMSEC Information Security Specialist ManTechCOMSEC Information Security SpecialistWashington, DCFunctional expertise in one or more information assurance technologies or capabilities such as Vulnerability/Threat Assessments, Network Intrusion Detection, Secure Operations, Firewall Design & Deployment, Public Key Encryption, Virtual Private Networks, etc. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.
Principal Cyber Security Architect LeidosPrincipal Cyber Security ArchitectGaithersburg, MarylandWe are building with an AI-first engineering mindset, embracing emerging AI capabilities and modern development practices to accelerate delivery, improve software quality, and continuously evolve how we design and build mission-critical systems. August 18, 2026 For 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.
Information Systems Security Manager (Issm) - Senior CONTACT GOVERNMENT SERVICESInformation Systems Security Manager (Issm) - SeniorWashington, DC$66,000–$133,000 / yearFor the past seven years, we've been growing our government-contracting portfolio, and along the way, we've created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work. Here at CGS we value honesty through hard work and self-awareness, professionalism in all we do, and to deliver the best quality to our consumers mending those relations for years to come.
Information Systems Security Manager (Issm) - Journeyman CONTACT GOVERNMENT SERVICESInformation Systems Security Manager (Issm) - JourneymanWashington, DC$53,000–$107,000 / yearFor the past seven years, we've been growing our government-contracting portfolio, and along the way, we've created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work. Here at CGS we value honesty through hard work and self-awareness, professionalism in all we do, and to deliver the best quality to our consumers mending those relations for years to come.
NewCloud Security Engineer SteerBridgeCloud Security EngineerVienna, VAExperience implementing and managing identity and access management controls, including role-based, attribute-based, and federated access models, ensuring least-privilege enforcement and secure authorization across architectures and access governance practices. We don’t simply hire exceptional talent; we cultivate it , creating meaningful career pathways for veterans, military spouses, and professionals who share our passion for advancing technology and strengthening the missions we serve.
Senior System Engineer (Email Security Migration) System OneSenior System Engineer (Email Security Migration)Washington, DCResponsibilities : • Lead the migration from on-premises IronPort email security appliances to Proofpoint cloud-based email security solution, ensuring seamless transition with minimal disruption to email services. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.