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Security Systems Jobs in Crystal, VA

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Information System Security Officer Vets Hired

Annapolis Junction, Maryland

1+ years of experience in utilizing security relevant tools, systems, and applications in support of Risk Management Framework (RMF) to include: NESSUS, ACAS, DISA STIGs, SCAP, Audit Reduction, and HBSS. We currently seeking a Cybersecurity Information System Security Officer (ISSO) to support Department of Defense (DoD) and Special Access Program (SAP) activities in Annapolis Junction, MD.

30+ days ago

Information System Security Officer (ISSO) Noblis

Chantilly, Virginia

$132,900–$207,750 / year
Full time

Compensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. We believe our people are our greatest strength, and we consistently seek exceptionally skilled, mission‑driven professionals who care deeply about doing work that enriches lives and makes our nation safer.

23 days ago

System and Network Administrator Dunhill Solutions

Germantown, Maryland

In this role, you will serve as the technical backbone of our operations, taking ownership of everything from on-premises Cisco/Juniper networking and Palo Alto security systems to Windows Server administration and Microsoft Azure cloud environments. • Deploy, configure, and manage Azure cloud resources, including Virtual Machines (VMs), Virtual Networks (VNets), Network Security Groups (NSGs), Storage Accounts, and Key Vaults.

30+ days ago

Information System Security Manager Peraton

Silver Spring, Maryland

$112,000–$179,000 / year
Full time

5+ years experience with Authority to Operate (ATO) process, continuous monitoring, POA&Ms, Security Authorizations (SA), NIST 800-37, NIST 800-53 Rev4/ Rev5, working with Information System Owners (ISO) and Program Managers (PM). Continuously maintain a thorough understanding of all relevant corporate policies, security control plans as well as system configurations, architecture, installed software, accounts (both Operating System and Application), data flows, ports, protocols, and other relevant data for each Information System.

28 days ago

Senior Infrastructure and Systems Administrator Peraton

College Park, Maryland

$135,000–$216,000 / year
Full time

Minimum of 6+ years of experience with a Bachelor’s degree, 4+ years of experience with a Master’s degree, or a PhD in Computer Science, Computer Engineering, Information Systems, Cybersecurity, or a related technical field. This position will work closely with the Maryland-based customer, researchers, engineers, subcontractors, and program leadership to ensure mission systems are reliable, secure, compliant, and ready to support advanced R&D efforts.

30+ days ago

Lead Systems Administrator Dunhill Professional Search of Wilmington, Inc.

Arlington, VA

$110,000–$160,000 / year
Full time
Quick Apply

Candidates must have experience with Sun Solaris administration• Excellent knowledge of relevant operating systems (e.g., Windows Server, Red Hat, CentOS) and virtualization technologies (e.g., VMware vSphere, ESXi) in enterprise environments. The Systems Administrator Lead provides technical and leadership oversight for the administration of servers, operating systems, and core infrastructure services that support missioncritical operations in a federal IT environment.

30+ days ago

Sr. Windows Systems Administrator Axient LLC

Columbia, MD

$145,000–$165,000 / year

Astrion has an exciting opportunity for a highly experienced Senior Windows Administrator to build, secure, and sustain the Windows Server estate, the Windows 11 workstation fleet, and the Active Directory and Windows network services that run across three or more isolated classified networks supporting Department of Defense/Department of War (DoD/DoW) environments in Columbia, MD. The ideal candidate brings deep Windows Server and Active Directory expertise, extensive experience operating inside closed and air-gapped classified enclaves, and a proven record of building and maintaining systems in compliance with Risk Management Framework (RMF), DoD STIG, and Comply-to-Connect (C2C) requirements.

30+ days ago

Information Systems Security Engineer II (ISSE) TAP Engineering

Annapolis Junction, MD

Full time

DoD 8570 compliance with IASAE Level 2. 12 years of experience as an ISSE on programs and contracts of similar scope, type, and complexity, to include recent experience within the last 5 years with cybersecurity principles and technology, including access/control, authorization, identification and authentication, PKI, and network and enterprise security architecture. TAP Engineering is seeking an Information Systems Security Engineer (ISSE) to help deliver enhanced HPC capabilities across multi-vendor HPC servers, HPC clusters, and specialized processing environments.

30+ days ago

(USA) Staff, Systems And Infrastructure Engineer, Information Security Walmart

Herndon, Virginia

Option 1: Bachelor's degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 4years’ experience in systems and infrastructure engineering or related area at a technology, retail, or data-driven company. Leveraging DevOps, automation, APIs, and telemetry, the team enhances reliability, accelerates service delivery, and enforces consistent controls while leading audit readiness, technical governance, resiliency, and platform modernization efforts.

7 days ago

SME Systems Architect KDA Consulting Inc

Herndon, VA

Quick Apply

Enterprise Monitoring & ITSM Integration: Deep architectural understanding and proven ability to support the development of integrated future-state architectures combining Splunk (enterprise logging/SIEM), ServiceNow (ITSM/ITOM), and AppDynamics (application performance monitoring) to deliver holistic operational observability. Future & Integrated Enterprise Architecture: Drive the development, evolution, and alignment of the future-state and integrated technical architecture for critical enterprise platforms, specifically ensuring seamless interoperability between Splunk, ServiceNow, and AppDynamics.

30+ days ago

Senior Systems Engineer Core One

Sterling, VA

$125,000–$165,000 / year

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30+ days ago

IT Systems Engineer 5 - Annapolis Junction, MD M.C. Dean Inc

Annapolis Junction, MD

$150,000–$200,000 / year

As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets. Perform systems engineering assessments (upgrades, system improvements, lifecycle refreshes, migrations, new deployments), develop conceptual design solutions, and create implementation work breakdown structures to drive planning and estimating.

20 days ago

Senior Systems Engineer Fantom Corporation

Fort Meade, Maryland

Established in 2015, Fantom Corp serves Federal customers with top-notch Cybersecurity Architects, Data Scientists/Analysts, Software Engineers/Developers, DevSecOps Engineers, Project Managers, Identity, Credential Access Management (ICAM) services, and Cloud-certified practitioners. The ideal candidate has extensive experience supporting large-scale systems engineering initiatives involving DoD architectures, service-oriented architectures, systems integration, and technical program leadership.

30+ days ago

Access Control Officer (ACO) CenCore, LLC

Manassas, VA

Full time

This role controls access to restricted areas, verifies credentials and clearance levels, conducts screening for prohibited devices or materials, escorts non-cleared personnel, monitors security systems, and responds to security incidents in accordance with established protocols. Key Responsibilities Control access to designated facilities, sensitive areas, and classified or restricted information in accordance with established security protocols and clearance requirements.

9 days ago

Senior Security Architect - TS/SCI Sunayu

Bethesda, MD

To be successful in this role you need these skills (required): Clearance: Active or current Top Secret/SCI and the ability to obtain Polygraph Bachelor of Science degree from an accredited university ideally in Computer Science, Information Assurance, Information Security System Engineering or related field with a minimum of 12 years of experience as an Information Systems Security Engineer (ISSE) or System Engineer on programs and/or contracts with the customer space. You will wow us even more if you have these skills: Active TS/SCI with polygraph Experience with Commercial Cloud Services (C2S) and cloud-based enterprise services, preferably AWS Five (5) years of experience with Defense in Depth Principals/technology (including access control, authorization, identification and authentication, public key infrastructure, network and enterprise security architecture) and applying risk assessment methodology to system development.

9 days ago

Oracle Security Analyst i360technologies, Inc.

Washington, DC

We want analysts who already use AI tools (Claude, ChatGPT, Copilot, or similar) to learn Oracle security quickly, research role and privilege structures, draft procedures and documentation, and troubleshoot access issues, and who use them responsibly: only agency-approved tools, no sensitive user, access, or system data in public AI tools, and every output reviewed and tested before use. The program will migrate multiple agency components and customer agencies onto the new platform, with a stated goal of making maximum use of automation and artificial intelligence to reduce manual workload, speed reconciliation and improve data quality.

28 days ago

Systems Integration Representative Everon Jobs

Columbia, Maryland

Utilizing approved marketing materials to demonstrate sales presentations and proposals to prospective customers; assuring that the customers understand the value proposition and positive advantages of Everon’s products and services over those of the competition. Must demonstrate professional knowledge with an in depth understanding of all or most of the following systems: fire alarm/life-safety, intrusion alarm, access control, video surveillance, nurse-call, plus low voltage systems in general, installation, testing, inspection and maintenance.

30+ days ago

Security Officer L1 - 4155 NTT Global Data Centers

Ashburn, Virginia

We offer local-to-global data center expertise, aligned with our connected platform of AI-ready data centers to create solutions that enable our clients to seamlessly scale their digital businesses, anywhere and anytime. This position plays a critical role in ensuring the protection of personnel and company property, managing access control, monitoring CCTV systems, responding to incidents, and completing written reports.

30+ days ago

Security Officer L1 NTT Global Data Centers

Ashburn, Virginia

30+ days ago

Security Monitor 1 Intrepid Global Solutions

McLean, Virginia

Services provided include comprehensive facility operations; project management for renovations, minor construction, and major equipment repairs; engineering, construction, and operations support; custodial and grounds maintenance services; environmental, safety, and occupational health support; food services; motor pool and logistics operations; and physical and technical security services. The Security Monitor 1 will be responsible for monitoring surveillance systems, patrolling the premises, controlling access to restricted areas, and responding to security incidents in accordance with established protocols.

30+ days ago

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Security Systems Jobs in Crystal, VA

Information System Security Officer Vets Hired

Information System Security Officer (ISSO) Noblis

System and Network Administrator Dunhill Solutions

Information System Security Manager Peraton

Senior Infrastructure and Systems Administrator Peraton

Lead Systems Administrator Dunhill Professional Search of Wilmington, Inc.

Sr. Windows Systems Administrator Axient LLC

Information Systems Security Engineer II (ISSE) TAP Engineering

(USA) Staff, Systems And Infrastructure Engineer, Information Security Walmart

SME Systems Architect KDA Consulting Inc

Senior Systems Engineer Core One

IT Systems Engineer 5 - Annapolis Junction, MD M.C. Dean Inc

Senior Systems Engineer Fantom Corporation

Access Control Officer (ACO) CenCore, LLC

Senior Security Architect - TS/SCI Sunayu

Oracle Security Analyst i360technologies, Inc.

Systems Integration Representative Everon Jobs

Security Officer L1 - 4155 NTT Global Data Centers

Security Officer L1 NTT Global Data Centers

Security Monitor 1 Intrepid Global Solutions

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