June 25, 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. It's a better process: facilitating a continuous ATO through real-time monitoring and dashboards that provide single pane of glass visibility into control compliance, zero-trust built-in to system design from day one, continuous evidence that gives auditors real-time proof instead of point-in-time packages, and an ATO that program teams can inherit rather than pursue.
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ul>Support the MCSC Acquisition Program Security Lead (APSL) to ensure that all technology protection document development, updating, and staffing are accomplished as depicted in the Program’s Integrated Master Schedule (IMS) and as described in the Department of Defense Technology and Program Protection Guidebook and the MCSC Acquisition Security Guidebook.
Develop and update Program Protection Plans (PPP) as required by DoD Instruction 5000.83 and described in PDUSD Memorandum, “Document Streamlining – Program Protection Plan (PPP),” July 16, 2011 and the MCSC Acquisition Guidebook.
Springfield, VA12 days ago
System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Manage Active Directory, DNS, SCOM\SCCM, group policy, and PowerShell scripting to ensure system integrity and security.
ul>This position requires at least 8+ years’ experience supporting networking for DoD Command and Control Systems such as Multisource Correlator Tracker (MSCT), Common Aviation Command and Control System (CAC2S), Air Defense System Integrator (ADSI), or Theater Battle Management Core System (TBMCS). Arcticom, LLC provides network and systems administration, enterprise architecture and resource planning, certification and accreditation, software design, programming, maintenance of telecommunications and land mobile radio equipment and systems, help desk support and IT transformation services among other services.
Springfield, VA12 days ago
li>Configure and troubleshoot NetApp Storage – ONTAP, perform firmware and OS upgrades, and utilize storage management tools like OnCommand Unified Manager and Performance Manager. Design, implement, and support VMware vSphere, vCenters, and Microsoft Active Directory Forests with JIT administration to support multiple PKI systems.
li>Support engineering activities and programmatic milestones through the development and review of engineering documentation (System Engineering Plans, Test and Evaluation Master Plans, Interface Control Documents, System Specifications, etc.) and requirements documentation, system engineering technical review (SETR) briefing materials, configuration management activities and program schedules.
Provide Configuration Management support by participating in meetings (Engineering Review Board / Configuration Control Board), generating CM Plans, generating Engineering Change Proposals, and completing assigned action items as assigned by the government technical lead.
li>Self-driven analytical thinker capable of managing priorities in fast-paced environments and delivering technical briefings to senior government organizations (including Officer, Enlisted, and Civilian personnel); highly proficient with the Microsoft Family of Software and Tools (Office, Visio, SharePoint, Project) alongside development/task management capabilities like Jira and Confluence. Familiarity with the Marine Corps Operational Test and Evaluation Activity (MCOTEA), including the MCOTEA Operational Test & Evaluation Manual (6th Edition); experience planning Field User Evaluations and Joint Service Exercise events incorporating Electronic Warfare and Intelligence collection platforms under the Risk Management Framework (RMF).
ul>Bachelor’s degree and minimum of 4 years of experience working with Red Hat Enterprise Linux 7.X, 8.X, 9.X with a strong command-line interface (CLI) skillset (additional 2 years of experience may be substituted in lieu of degree).
Fort Belvoir, VA30+ days ago
Will analyze site survey reports, recommend network modernization upgrades, craft network architectures, and assist operations leads in creating deployment plans and executing capability roll outs. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Fort Belvoir, VA30+ days ago
Excellent analytical, technical, communication, planning, presentation, and organizational skills with the ability to articulate new ideas and concepts to technical and nontechnical audiences, internal teams, senior leaders, vendors, partners, customers, and stakeholders. Will analyze site survey reports, recommend network modernization upgrades, craft network architectures, and assist operations leads in creating deployment plans and executing capability roll outs.
Preferred Qualifications: Experience with BigFix, Nutanix, Splunk, Tenable Security Center, Security Compliance Checker, Security Technical Implementation Guide (STIG) Viewer, NMAP, Nipper, Wireshark, Microsoft Defender for Endpoint, RSA Authentication Manager, Microsoft Windows Active Directory, CISCO Firepower Management Center. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses.
p>Key Responsibilities: KBR seeks an Information Systems Security Engineer to serve as the Program Office's information security professional responsible for managing all aspects of an organization's information security system, including researching, testing, training, and implementing programs designed to safeguard sensitive information from possible compromise.
The ISSE works with System Engineering teams to incorporate cyber resiliency objectives, techniques, and design principles into all system engineering and development efforts throughout the systems development life cycle (SDLC).
Preferred Qualifications: Experience with BigFix, Nutanix, Splunk, Tenable Security Center, Security Compliance Checker, Security Technical Implementation Guide (STIG) Viewer, NMAP, Nipper, Wireshark, Microsoft Defender for Endpoint, RSA Authentication Manager, Microsoft Windows Active Directory, CISCO Firepower Management Center. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses.
Springfield, Virginia4 days ago
All the personnel on the team will work together to support innovative design, engineering, procurement, implementation, operations, sustainment and disposal of user facing and data center information technology (IT) services on multiple networks and security domains, at multiple locations worldwide, to support the IC mission. Degree and Years of Experience: Bachelors Degree in Computer Science or a related technical discipline, or the equivalent combination of education, professional training or work experience.
Springfield, VA20 days ago
li>Additionally, you will travel up to 25% annually to engage with field sites, perform on site technical reviews, collaborate with local stakeholders, and ensure edge systems are designed, configured, and maintained in accordance with organizational and mission focused security expectations. - You will provide expert cybersecurity engineering support to edge system stakeholders-including system owners, information security professionals, system engineers, and administrators-to ensure systems remain in full technical alignment with organizational security requirements.
Springfield, VA6 days ago
p>Key responsibilities include: Discovering system protection needs by assessing mission impacts, identifying relevant threats, determining required security services, evaluating applicable constraints, and documenting system protection requirements. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Springfield, VA30+ days ago
As a valued contributor to our team your responsibilities will include (1) managing and performing technical reviews of security accreditation artifacts and test plans (2) employ a functional knowledge of a wide variety of systems and network engineering procedures as they apply to cyber security or infrastructure of network systems, and their design development processes (3) have an in-depth knowledge of vulnerability management and continuous monitoring. If you are looking for a career as a Senior Security Engineer, and you are interested in acting as the Information System Security Officer (ISSO), then our Intelligence, Surveillance & Reconnaissance Division of ARA has an exciting opportunity worth considering.
California, MD30+ days ago
HII Mission Technologies is seeking a Senior Special & Tactical Operations Subject Matter Expert (SME) to support advanced modeling, simulation, and training activities within the Joint Simulation Environment (JSE) at NAS Patuxent River, MD. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
California, 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. As part of an on‑site team supporting NAWCAD, you will design, enhance, and maintain critical software components used across the JSE ecosystem—including NGTS, DIADS, GRID, and other constructive and virtual simulation frameworks.
California, MD30+ days ago
HII Mission Technologies is seeking a Senior Tactical Operations and Air/Weapons Specialist to support advanced modeling, simulation, and tactical employment activities within the Joint Simulation Environment (JSE) at NAS Patuxent River, MD. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.
Fort Belvoir, VA30+ days ago
Implementing and maintaining the organization's cybersecurity toolsets, such as endpoint security solutions (ESS), malware protection, network detection & response (NDR), and endpoint detection & response (EDR) . As a Cyber Tools Administrator, you'll play a pivotal role in protecting our digital assets and strengthening our security posture through proactive monitoring, analysis, and implementation of cutting-edge security solutions.
Springfield, Virginia6 days ago
Fort Belvoir, VA20 days ago
li>Experience with ICAM principles and technologies, including multi-factor authentication, privileged access management, security operations, and security architecture leveraging ICAM solutions such as SailPoint, Radiant Logic, Ping Federate, Delinea, and Okta. Experience with data broker technologies such as Cribl or Confluent, operating systems security events such as Windows or Linux, and networking protocols such as TCP/IP, DNS, DHCP, or HTTP/HTTPS.
Fort Belvoir, VA13 days ago
li>Assist ISSOs in developing vulnerability management processes for applicable systems, coordinate input from ISSOs and ISSMS into scanning processes, and recommend best practices to ISSOS, ISSMS, and PM based on scanning findings.
Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.
Springfield, VA30+ days ago
p>By providing the information below and checking the boxes referenced, you acknowledge and consent to SAIC''s Privacy Policy to include access and use of your information for the purposes of sharing your information for possible employment recruitment effects by SAIC and it''s third party vendors. SAIC - Senior Information Systems Security Officer in Springfield, Virginia, United States.
It's a better process: facilitating a continuous ATO through real-time monitoring and dashboards that provide single pane of glass visibility into control compliance, zero-trust built-in to system design from day one, continuous evidence that gives auditors real-time proof instead of point-in-time packages, and an ATO that program teams can inherit rather than pursue. You take pride in delivering high-quality work with minimal oversight, exercising sound judgment, and serving as a trusted cybersecurity advisor to both technical teams and leadership.
p>General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. Bachelor's degree in Engineering, or a related Science or Mathematics field, plus a minimum of 5 years of relevant experience; or Master's degree plus a minimum of 3 years of relevant experience.
General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. Bachelor's degree in Engineering, or a related Science or Mathematics field, plus a minimum of 5 years of relevant experience; or Master's degree plus a minimum of 3 years of relevant experience.
Quantico, Virginia30+ days ago
div>Requisition #: 1413
Job Title: Information Security Specialist
Clearance: Active TS Required
Location: Quantico, VA – 100% on-site
Travel: Not anticipated
Overview:
Agile Defense is an award-winning national security company looking for a Senior Systems Engineer to support our contract with a federal law enforcement agency.
This position will offer you a chance to support a federal agency by assessing, improving, monitoring, and documenting the security posture for an enterprise IT system.
About Agile Defense
At Agile Defense we know that action defines the outcome and new challenges require new solutions.
Working alongside the ISSM, system administrators, engineers, program managers, and government stakeholders, the ISSO helps ensure systems remain compliant with the Joint SAP Implementation Guide (JSIG), the DoD Risk Management Framework (RMF), and applicable Intelligence Community and DoD directives. Develop, maintain, and update core RMF documentation: System Security Plans (SSPs), Security Control Traceability Matrices (SCTMs), Plans of Action and Milestones (POA&Ms), Security Assessment Reports (SARs), and Continuous Monitoring Plans.
In this role, you will collaborate to support a large-scale routing and switching infrastructure, contributing to general network tier support while focusing primarily on the deployment and management of the agency's new network access control platform. Responsible for designing, configuring, monitoring, and troubleshooting Cisco ISE as a NAC/NAM platform, including TACACS+/RADIUS services, device administration policies, and wired/wireless 802.1X authentication.
King George, Virginia30+ days ago
PLEASE NOTE: This contact channel is reserved for use by individuals with disabilities who require special accommodations in order to submit an expression of interest in a position within Red River.Red River does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings or otherwise. Placement fees will not be paid to any recruiter unless Red River has an active agreement in place with the recruiter and such a request has been made by the Red River Talent Acquisition team and such candidate was submitted to the Red River Talent Acquisition Team via our Applicant Tracking System.
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. By providing the information below and checking the boxes referenced, you acknowledge and consent to SAIC''s Privacy Policy to include access and use of your information for the purposes of sharing your information for possible employment recruitment effects by SAIC and it''s third party vendors.
Fort Belvoir, VA30+ days ago
Technology moving at the speed of thought" embodies these principles - the need to nimbly utilize the best that information technology offers to meet the business needs of our Federal Government customers. TekSynap is a fast growing high-tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment.
You will partner with additional teams within Credit Union to protect the Navy Federal brand, data, and IT assets from cyber-based threats by deploying, configuring, managing, and maintaining technologies/infrastructure in support our Advanced Cyber Initiatives (ACI) and its associated programs. Strong understanding and ability to troubleshoot various common Linux operating systems (Centos, Red hat, Ubuntu, and/or Cisco derivative OS's) OR Strong understanding and ability to troubleshoot various Windows server operating systems.
Springfield, VA6 days ago
p>Responsibilities include but are not limited to: Leading the compilation, organization, and technical writing of the complete Body of Evidence (BOE) required to successfully navigate the ICD 503 Risk Management Framework (RMF) pipeline for IATT and ATO milestones.
Minimum Qualifications:
High School Diploma/GED with 10+ years of experience, or a Bachelor's degree in Cybersecurity, Systems Engineering, or a related technical field with 6-10 years of progressive experience.
p>Bachelors degree in information technology or a related field appropriate to the work of position with a minimum of three years of hands on experience securing enterprise environments, OR an appropriate combination of education and experience that demonstrates possession of knowledge and skill equivalent to that gained in the above, OR appropriate experience that demonstrates that the applicant has acquired the knowledge, skills, and abilities equivalent to that gained in the above. The DON No Fear Act policy link is provided for your review: https://www.secnav.navy.mil/donhr/Site/Pages/No-Fear-Act.aspx.
Fort Belvoir, Virginia30+ days ago
The salary range displayed is an estimate only and is not a guarantee of compensation or salary, and will be determined on several factors regarding the individual’s particular combination of education, knowledge, skills, competencies and experience, as well as contract parameters and organizational requirements. Overview: TekSynap is a fast growing high-tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment.
Springfield, VA30+ days ago
Qualifications: Required: A deep expertise in one of the following areas and working knowledge of one or more of the other following: Network Detection and Response (Vectra, Extrahop, Corelight etc), Endpoint Detection and Response (Carbon Black, CrowdStrike Falcon, Microsoft Defender), Next-Generation Firewalls (Palo Alto, Juniper, Cisco), Intrusion Detection/Prevention Systems (Cisco Firepower), F5 platforms, email/web security gateways (Proofpoint, Cisco) Strong technical background with a thorough understanding of cloud infrastructure, security principles, compute, storage, and transport Expertise in Windows and Linux server operating systems Excellent writing and communication skills, including the ability to develop analytical documents and present oral presentations to senior/executive management Ability to work independently with little direction and guidance 6+ years related technical experience in network/cybersecurity engineering and experience with large-scale enterprise/global networks in a highly diverse environment with an emphasis in DoD capabilities Demonstrated experience modernizing complex enterprise cybersecurity systems Candidate must have a TS/SCI with ability to obtain a Polygraph Certified DoD 8140.01 and 8570.01-M Responsibilities: Represent customer requirements in technical exchanges with other government agencies Develop and maintain architecture diagrams Develop and maintain a road map for capabilities, operations, and technologies Assist with development and execution of test plans and supporting documentation of all network configuration upgrades, additions or revisions for customer approval before implementation May serve as a team or task lead Coordinate with stakeholders and external assessors to facilitate security assessments and authorization processes.
Springfield, VA16 days ago
p>Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Provide specific, detailed information for hardware and software selection, implementation techniques, and tools for the most efficient solution to meet business needs, including present and future capacity requirements.
Springfield, VA30+ days ago
p>The Opportunity: Team CACI on our TCS Program has an exciting and challenging opportunity available for a Network Security Engineer supporting an Intelligence Community customer's wide-area (WAN), local-area (LAN) and campus-area (CAN) networks across multiple security domains.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Fort Belvoir, Virginia6 days ago
The ideal candidate will drive the design and implementation of sophisticated security solutions, both on-prem and future secure cloud environments, leveraging expertise in a range of security platforms, including, but not limited to Splunk, Elastic, and Microsoft Sentinel. Serve as the SIEM SME/Architect to enhance the agency’s SIEM platformby developing advanced security content, creating custom dashboards, integrating REST APIs, and onboarding new data sources to improve threat visibility.
Fort Belvoir, VA5 days ago
The ideal candidate will drive the design and implementation of sophisticated security solutions, both on-prem and future secure cloud environments, leveraging expertise in a range of security platforms, including, but not limited to Splunk, Elastic, and Microsoft Sentinel. Serve as the SIEM SME/Architect to enhance the agency's SIEM platformby developing advanced security content, creating custom dashboards, integrating REST APIs, and onboarding new data sources to improve threat visibility.
Fort Belvoir, VA6 days ago
The I3TS program provides enterprise-wide IT support to enable DTRA's Information Management & Technology Directorate (ITD) to consolidate, modernize, and continuously innovate the delivery of IT services and mission capabilities to DTRA's internal and external mission partners operating in CONUS and OCONUS locations. Experience in network and network security design where under general direction, manages the design, installation and support of LAN/WAN based networks and security components such as routers, switches and firewalls, and datacenter equipment.