June 4, 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.
Leidos Digital Modernization is seeking a skilled SCCM/Windows Systems Administrator to support the Defense Intelligence Agency (DIA) National Digital Exploitation & OSINT Center (NDOC) IT Operations and Maintenance (O&M) program.
This role is responsible for the administration, security, maintenance, and operational support of Windows print servers, Xerox print devices, and Xerox Device Manager (XDM) servers across both NIPR and SIPR networks. This individual will serve as the subject matter expert (SME) for Xerox printing systems and collaborate closely with USAF personnel, Xerox teams, and IT stakeholders to ensure reliable, secure, and compliant operations.
Hyattsville, MD30+ days ago
AdditionalLocations-[ --{ ----"city":-"Pleasanton", ----"region":-null, ----"country":-null --}, --{ ----"city":-"Lake-Oswego", ----"region":-null, ----"country":-null --}, --{ ----"city":-"Greenwood-Village", ----"region":-null, ----"country":-null --}, --{ ----"city":-"Atlanta", ----"region":-"GA", ----"country":-"United-States" --}, --{ ----"city":-"Hyattsville", ----"region":-null, ----"country":-null --}, --{ ----"city":-"Renton", ----"region":-null, ----"country":-null --}, --{ ----"city":-"Honolulu", ----"region":-null, ----"country":-null --} ] custom_fields. Essential Responsibilities:
- Completes work assignments by applying up-to-date knowledge in subject area to meet deadlines; following procedures and policies, and applying data and resources to support projects or initiatives; collaborating with others, often cross-functionally, to solve business problems; supporting the completion of priorities, deadlines, and expectations; communicating progress and information; identifying and recommending ways to address improvement opportunities when possible; and escalating issues or risks as appropriate.
As the Senior Systems Administrator, you will monitor and maintain corporate communication systems related to email and messaging; troubleshoot hardware, software, and network problems pertaining to the operation of Microsoft Exchange Servers in a Windows Active Directory environment; and oversee the status of issues related to messaging systems with the corporation and ensure that issues are resolved, documented, and closed in a timely manner. Work Environment, Physical Demands, and Mental Demands: Typical office environment with no unusual hazards, occasional lifting to 20 pounds, constant sitting while using the computer terminal, constant use of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, and constant mental alertness; must possess planning/organizing skills and be able to work under deadlines.
McLean, Virginia8 days ago
As the Senior Systems Administrator, you will monitor and maintain corporate communication systems related to email and messaging; troubleshoot hardware, software, and network problems pertaining to the operation of Microsoft Exchange Servers in a Windows Active Directory environment; and oversee the status of issues related to messaging systems with the corporation and ensure that issues are resolved, documented, and closed in a timely manner. Typical office environment with no unusual hazards, occasional lifting to 20 pounds, constant sitting while using the computer terminal, constant use of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, and constant mental alertness; must possess planning/organizing skills and be able to work under deadlines.
Germantown, MD11 days ago
p>Description: Based on-site in Germantown, Maryland, the IT Systems Administrator will support and maintain the organization''s core IT infrastructure, including Hybrid Azure AD (Entra ID), Microsoft 365 GCC High, Windows Server environments, endpoint management platforms, virtualization technologies, and secure network services. This position manages hybrid identity services, Microsoft 365 GCC High, Windows infrastructure, virtualization platforms, cybersecurity controls, and network services while ensuring alignment with CMMC Level 2 and NIST SP 800-171 requirements.
Leidos Digital Modernization is seeking a skilled SCCM/Windows Systems Administrator to support the Defense Intelligence Agency (DIA) National Digital Exploitation & OSINT Center (NDOC) IT Operations and Maintenance (O&M) program. Manage and support Public Key Infrastructure (PKI) services, including certificate issuance, renewal, revocation, and troubleshooting for Windows servers, applications, and user authentication mechanisms.
These capabilities include: - Systems running Red Hat, CentOS, SUSE and custom vendor-specific operating systems, with high-speed shared storage (lustre, and gpfs as examples), along with dedicated high-speed low latency network interconnects like Infiniband and Slingshot.
- Configure and manage Linux, Unix, and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.
This includes responding appropriately to alerts and events and responding to incidents from triage through resolution, including escalations, where appropriate; conducting infrastructure repairs, including directing remote activities to maintain operational effectiveness for services; providing root cause analysis documentation in accordance with Government procedures, and documenting daily shift activities in appropriate reporting and ticketing tools and ensure proper pass down of any outstanding issues. Database & SQL Certification/Training: Completed training or certification in database programming or SQL querying, such as Microsoft Certified: Azure Database Administrator Associate (DP-300), Oracle Database SQL Certified Associate, or equivalent structured coursework.
b>Required Qualifications:- Education & Experience:
- Bachelors ‘s degree in Information Technology, Computer Science, Systems Engineering, or related field with 5+ years of relevant experience required; 7 + years may be substituted in lieu of a degree. Design & Implementation
- Design and deploy virtual infrastructure solutions—including clusters, shared storage, networking, and lifecycle management—following best practices for performance and security.
p>Operations, Documentation, and Customer Support: - Coordinate with network/software/system engineers, ISSM/ISSO partners, desktop teams, project managers, and end users to keep systems operating smoothly. In terms of professional development, 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.
Bachelor's degree in Computer Engineering, Computer Science, Applied Science, Electrical Engineering, Math, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university, a developer nanodegree, or equivalent work experience, is required. Must be knowledgeable in the support and administration of VMWare, hosting and managing virtual machines, and data storage such as Network Attached Storage (NAS) and Storage Area Network (SAN) hardware.
Arlington, Virginia1 day ago
ul style="margin: 0px; padding: 0px; font-family: verdana;">Coordinates with OMC IT leadership and JSP to resolve complex infrastructure incidents; independently determines escalation paths and corrective actions for the most complex OMC IT issues. . - Leads O&M support for NIPRNET, SIPRNET, and JWICS system infrastructure (~400 users) and SAP domain, storage, SQL database, workstation, and printer infrastructure (~150 users); administers and maintains Microsoft Active Directory and GPOs. .
Applicants will be contacted regarding employment opportunities upon award notification.. Familiarity with NetApp, tape libraries, and backup/restore operations.
Request and Reporting System requests; verify accesses; obtain approvals, and serve as a liaison between users and other support offices to resolve/fulfill IT and access administration problems/requirements). Coordinate projects with appropriate service proviclers and customers, identify/resolve project issues, and keep customers/project team members informed of projects' statuses.
p>Active TS/SCI + CI Poly clearance HS, 9-11 years of relevant experience; BS, 3-5 years; MS, 0-3 One of the Following DoD 8570/CS-NET-451 certifications is required: Security+ CE SSCP CySA+ GSEC DESIRED QUALIFICATIONS. "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.
The Senior Systems Cloud Administrator will be directly responsible for the installation, configuration, upgrade, patching, maintenance and monitoring of the SAS environment across the entire Enterprise, while ensuring compliance to various security and encryption protocols for U.S. national security. If you are not reviewing this job posting on our Careers' site http://jtsusa.com/careers or one of our approved job boards we cannot guarantee the validity of this posting.
p>The Systems Administrator will manage and troubleshoot enterprise networks, servers, virtual environments, and security configurations while collaborating on the design and maintenance of the CALEA Continuity of Operations (COOP) site in Scottsdale, AZ. Clearance: Must be able to obtain and maintain DHS/ICE Fitness Determination (Public Trust), including favorable preliminary Fitness and full NBIS eAPP investigation (SF-85P, OF-306, SSA-89, fingerprints, PREA questionnaire if required).
Springfield, VA11 days ago
p>Keywords: Active Directory, Group policy management, LDAP, DNS, domain name system, powershell, host configuration, azure active directory, active directory domain services, windows server, identity and access management, IAM, Single sign-on, SSO, PKI, public key infrastructure, PKI, infrastructure, Linux, unix, linux engineer, senior engineer, linux systems, linux server, top secret clearance, TS/SCI, AWS, EKS, ECS, JSON, YAML, cloud formation, automatinon, IAM, access, confluence, servicenow, CICD, CI/CD, pipeline, GitLab, coding, scripting, python, CI Polygraph, counterintelligence, platform, infrastructure, platform infrastructure, network, dns, systems administrator, TS/SCI. Troubleshoot, maintain integrity and configure network components along with implementing operating systems enhancements to improve reliability and performance.
Springfield, VA10 days ago
p>Keywords: Active Directory, Group policy management, LDAP, DNS, domain name system, powershell, host configuration, azure active directory, active directory domain services, windows server, identity and access management, IAM, Single sign-on, SSO, PKI, public key infrastructure, PKI, infrastructure, Linux, unix, linux engineer, senior engineer, linux systems, linux server, top secret clearance, TS/SCI, AWS, EKS, ECS, JSON, YAML, cloud formation, automatinon, IAM, access, confluence, servicenow, CICD, CI/CD, pipeline, GitLab, coding, scripting, python, CI Polygraph, counterintelligence, platform, infrastructure, platform infrastructure, network, dns, systems administrator, TS/SCI. Troubleshoot, maintain integrity and configure network components along with implementing operating systems enhancements to improve reliability and performance.
The Technical Development Team will work closely with functional resources, solution developers, database administrators, information assurance specialists and configuration change management resources to perform analysis, design and development, testing, and deployment of changes to existing software as well as new solutions for the customer. 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.
Chantilly, VA30+ days ago
In addition to maintaining a private Customer Cloud, candidates should expect to gain experience in new administration technologies; tackle individual and group projects; work closely with other IT professionals; and participate in a growing ever-changing mission. 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.
Herndon, Virginia15 days ago
Our work depends on a Systems Administrator Sr Principal joining our team to design, implement and support Microsoft 365 Teams, Unified Communication Collaboration services, Voice, telephony and related emerging technologies to service, protect and secure GDIT’s position in the marketplace. Collaborate with the M365 Services and Database Team to implement and deliver outstanding support for Microsoft 365 Teams, Unified Communications & Collaboration services, Voice, Telephony and related emerging technologies.
Fort Belvoir, VA19 days ago
p>As a system administrator and cyber analyst on our project, you'll install, configure and manage RHEL and Windows operating systems to ensure that they meet operator needs while also being compliant with Risk Management Framework (RMF) and NETCOM requirements. 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.
Reston, Virginia18 days ago
The Technical Development Team will work closely with functional resources, solution developers, database administrators, information assurance specialists and configuration change management resources to perform analysis, design and development, testing, and deployment of changes to existing software as well as new solutions for the customer. We value team members who strive to produce high quality work through collaboration with team members and customers while making a difference through individual contributions to ensure project success for our team and our customers.
Springfield, VA30+ days ago
Certifications (CWF Requirements): Candidates must satisfy Cybersecurity Workforce Framework (CWF) ID 451 (System Administrator - Intermediate Level) requirements, as outlined by Navy COOL. 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.