Senior Windows Systems Architect - DoD Cyber Defense SME
Society of Defense Financial Management
Leidos in Reston, VA is seeking a Senior Windows Systems Administrator to own the Windows environment across a mixed OS infrastructure and serve as SME for the DISA CESO ITSS team. The role emphasizes technical leadership, architecture decisions, and proactive maintenance. The position focuses on system health, patching, lifecycle planning, incident resolution, and collaboration with Linux SMEs to maintain security baselines and compliance requirements. #J-18808-Ljbffr Society of Defense Financial Management
$116.35k - $210.33k
...network operations and cyber defense support to the... ...Information Systems Agency (DISA), enabling... ...of Defense (DoD) and Combatant Commands... ...is seeking a Senior Windows Systems... ...subject matter expert (SME) for our team. This... ...excellence. Design, architect, implement, and...CyberSeniorWindowsPermanent employment- Leidos is seeking a Senior Windows Systems Administrator (SA) to own the Windows environment within a mixed OS infrastructure. This role leads... ...have 8+ years of relevant experience, Security+ or equivalent DoD 8570 IAT II certification, and an active TS/SCI clearance....SeniorWindows
- Leidos is seeking a Cyber Defense Infrastructure Support Engineer in Suitland, MD. The role involves... ..., integrating, and maintaining security systems for TS/SCI networks. You will provide... ...support RMF activities, with a focus on Windows/Unix/Linux environments and #J-18808-...CyberSeniorWindows
- General Dynamics Information Technology seeks a Cyber Threat Hunter to strengthen the DoDIN‑A (NG) defensive posture. The role requires coordinating proactive hunts... ...capabilities. Qualified candidates will have a DoD 8570 IAT Level II baseline certification, future CSSP...CyberSenior
$89.6k - $204k
Cybersecurity Systems Engineer (Entry Level to SME) TS/SCI with Poly... ...supports senior staff in maintaining... ...of daily cyber defenses. CGI Federal... ...Hat, Ubuntu) and Windows. • Participate... ...conformance with DoD, Federal Civilian... ...Architecture: Architect, implement, and...CyberWindowsWork at officeLocal area- ...~ Platform/Tools: Visual Studio, IIS, Windows Server, Ansible ~ Strong Agile, SDLC,... ...nCompany Description Xcelerate is a leading defense and national security company, delivering... ...Infrastructure Protection, Digital Solutions, Cyber Security, and Strategic Consulting. We...CyberSeniorWindowsContract workInterim roleWork at officeRemote work
- SHR Consulting Group, LLC is seeking a Cyber PKI Administrator to install, configure, and maintain PKI... ...across multiple domains, ensuring compliance with DoD standards. The role requires experience with HSMs, PKI, and Windows AD CS, plus the ability to operate under two-...CyberSeniorWindowsLocal area
- ...business. Your greatest work is ahead! Leidos is seeking a Senior Exercise Planner - Joint Cyber Defense Collaborative (JCDC) to support aspects of HSEEP... ...and maintenance of the CTEP scenario library. Provide SME input to internal training activities to improve facilitation...CyberSeniorContract workWorldwide
- ...support our nation's defense. Make an impact by connecting... ...seeking a strategic Systems Architect SME to lead a highly... ...'s technical lead and senior advisor to Program Management... ..., vRA, Horizon VDI), Windows core service servers,... ...Develop and maintain DoD Architecture Framework...WindowsContract workWork experience placement
$126k - $345k
...Community (IC) and Department of Defense (DoD) to transform data into... ...challenges in Information Warfare, Cyber Operations, Operational... ...Responsibilities Drive end-to-end systems engineering efforts across... ..., RHEL) and familiarity with Windows/virtualized platforms. ~...CyberSeniorWindowsFlexible hours- GCI Incorporated in McLean, VA is seeking a SME Systems Engineer to support mission-critical data analytics, software development, cyber operations, and targeting; you will work... ...The role requires hands-on experience with Windows, Linux/UNIX servers, cloud environments (C...CyberSeniorWindows
- ...challenges across the defense, federal... ...end solutions in systems engineering and... ...cloud services; cyber; software; advanced... ...an experienced Senior SharePoint Developer... ...have an active DoD Secret clearance... ...serve as portal SME to increase... ...Application management on Windows Server 2019 and...CyberSeniorWindowsFull timeLocal areaRelocation
$80k - $110k
...process. Lead COOP SME - TT&E Arlington,... ...challenges across the defense, federal civilian,... ...-end solutions in systems engineering and integration... ...cloud services: cyber, software, advanced... ...and moderate mid/senior-level COOP and COG... ...virtualization. Windows environments on Server...CyberWindowsFull timeRelocation- ICF seeks an experienced Senior Cyber Security Analyst to support the research and development of new cyber analytic capabilities for national defense. The role involves working with customers, developers, and researchers to evolve, automate, and enhance cybersecurity capabilities...CyberSenior2 days per week
$86.8k - $198k
...Job Number: R0240643 Missile Defense Systems Architect, Senior The Opportunity: At a certain point, software design can start to look like clairvoyance... ...of systems engineering and integration efforts for the DoD, government agencies, or commercial programs ~...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work$120k - $160k
...SAIC is looking for a Senior Cybersecurity Analyst supports... ..., application logs, system logs, and threat... ...detection logic, logging, defensive controls, and incident... ...authentication protocols, Windows, Linux, cloud... ...including cloud services; cyber; software; advanced analytics...CyberSeniorWindowsRemote work- Guidehouse is seeking a Senior Operations Facilitation Manager for Industry Partnerships in a cyber consulting capacity. The role focuses on aligning private-sector partners... ..., and technical teams to advance shared cyber defense priorities. The successful candidate will...CyberSenior
$135k - $143k
...per month. The Senior Cybersecurity... ...in the proactive defense of the organization's information systems. This role provides... ...Architecture: Architect, implement, and manage... .../IPS, and other cyber management platforms... ...systems (Windows, macOS, Linux, iOS...CyberSeniorWindowsFull timeContract workCasual workRemote workFlexible hours$120k - $160k
...Posted: 2026-09-10 Category: Cyber Subcategory: Cybersecurity... ...a candidate to fill a Cyber Defense Analyst position on a joint... ...optimization of intrusion detection systems for both host and network... ...degree Digital Forensics of Windows, Linux and networking devices...CyberWindowsFull timeFor contractorsRemote workShift work$120.8k - $265.8k
Job Title: Senior Cybersecurity Engineer - SME Job Category: Information... ...report to the Chief of Cyber Engineering. The... ...multiple domains within a Defensive Cyber Operations (... ...infrastructure and systems. This role involves... ...it pertains to the DoD. To include the...CyberSeniorFull timeContract workWork experience placementLocal areaFlexible hours- Cornerstone Defense LLC is seeking a Security Cooperation Analyst to support the Office of the Deputy Assistant Secretary of War for Cyber Operations Policy (DASW COP). The role advances cyberspace security cooperation programs and provides policy, analytical, and technical...CyberSeniorWork at office
$100k - $151k
...Senior Red Team Operator Hybrid SIXGEN's mission... ...stay ahead of advanced cyber threats. We combine... ...vulnerabilities, protect vital systems, and ensure operational... ...to bypass A/V and EDR defenses. Experience... ...knowledge and experience with Windows and *NIX-based...CyberSeniorWindowsFull timeTemporary workWork experience placementRemote workFlexible hours- ...has an opening for a Senior Software Engineer requiring... ...and Department of Defense. In this role, you will... ...team of developers and systems administrators that support... ...analysis) in Windows, Linux and Mac environments... ...Engineering, Cloud Solutions, Cyber Security and IT Managed...CyberSeniorWindowsRemote work1 day per week
$134k - $184k
...Senior Reverse Engineer STR is hiring a Senior Reverse Engineer... ...of vulnerabilities in cyber physical systems. Work must be performed onsite... ...targets, ranging from typical Windows/Linux binaries to embedded... ...research and development for defense, intelligence, and national...CyberSeniorWindowsFull timeWork experience placementLocal areaNight shift$78.6k - $160.2k
...ingenuity for clients across defense, national security, public safety... ...forward! You Are: The Senior Systems Administrator, oversees the... ...and optimization of a mixed Windows and RedHat Linux environment... ...and collaborate closely with Cyber Security Automate operational...CyberSeniorWindowsLive inWork at officeLocal area- CyberMedia Technologies in Arlington, VA seeks an experienced SME Business Management Analyst to support CISA’s Stakeholder Engagement Division. The role combines policy work, risk analysis, and executive communications to shape DHS/CISA products. An active Top Secret clearance...CyberSeniorRemote work
- ...Senior Hardware/Software Technician ~ Washington, DC... ...Chenega companies, Chenega Defense & Aerospace Solutions (CDAS)... ...furnished equipment. Provide Windows operating system support - Windows 10... ...prepare for IT Accreditation and cyber security inspections. Provide...CyberSeniorWindowsFor contractorsWork at office
- ...distributed Splunk environments ~ A solid understanding of Windows and Linux administrationutilizingCommand Line Interface (CLI)... ...of the following: Splunk Certified Admin, Splunk Certified Architect, Splunk Certified Consultant Preferred: ~ Experience...CyberSeniorWindowsVisa sponsorship
$185k - $230k
MTSI is seeking a Senior Defense Technologist - Cyber supporting the Mission Engineering and Integration Activity... ...and complex technical problems to architect a secure digital engineering... ...bolstering the development of MEIA's digital systems and supporting the integration of...CyberSeniorFull timeContract workFor contractorsImmediate startWorldwideFlexible hours$187k - $253k
...Qualifications: Skills: Cyber Threat Analysis, Linux... ...EagleX is seeking a SME Cyber Network Analyst to... ...traditional network engineering, systems administration, cyber... ...and maintain Linux and Windows systems supporting... ...the U.S. government, defense and intelligence community...CyberWindowsContract workTemporary workImmediate startRemote workWorldwideFlexible hours
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