System Administrator GCubed,IncSystem AdministratorFort Belvoir, VAAdminister CAA's Hewlett Packard (HP) physical/virtual server farm that includes but not limited to storage area networks (SAN), application servers and Netbackup system servers ensuring all systems are available during core work hours. Install and update anti-virus software and anti-virus signature files on all CAA assets when released by Defense Information Security Agency (DISA) information assurance vulnerability alert (IAVA) or the ARMY once notified by the COR or CTO.
Mid/Sr System Administrator (TS/SCI Clearance with Full Scope Polygraph Required) J&T Business ConsultingMid/Sr System Administrator (TS/SCI Clearance with Full Scope Polygraph Required)Annapolis, MarylandBachelor’s degree in Systems Engineering, Computer Science, Information Systems, Engineering Management, or a related technical discipline plus at least 8 years of relevant systems administration experience, OR. In this role, you will deliver full-lifecycle systems administration, operations, and maintenance across multiple air-gapped enclaves, each featuring dedicated domains, storage architectures, and network infrastructure.
Systems Administrator II Trace3 IncSystems Administrator IIMD$100,000–$110,000 / yearThe administrator will manage and troubleshoot systems, implement security controls, support compliance requirements, and collaborate with engineering and cybersecurity teams to sustain mission-critical operations. JOB SUMMARY: The System Administrator II provides advanced system administration, maintenance, and support for government clients within Trace3's Federal, State, and Local practice.
Cloud/ System Administrator 1 White Sky TechnologiesCloud/ System Administrator 1MarylandRequired Skills: Hands-on experience supporting IT infrastructure including server installation, rack/stack activities, cabling, hardware troubleshooting and system bring-up. Physical Requirements: This position requires the ability to lift, move and transport equipment weighing up to 50 pounds as part of routine system maintenance, server installations and hardware troubleshooting activities.
Sr. Database Administrator TS/SCI Poly Leidos Holdings IncSr. Database Administrator TS/SCI PolyAnnapolis Junction, MD$154,050–$278,475 / yearThe selected individual will assess, audit, analyze, validate, and report database Security Requirements Guide (SRG) and STIG vulnerabilities while ensuring security controls are implemented in accordance with DoD, DISA, and cybersecurity policies and procedures. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.
System Administrator ANDURIL INDUSTRIESSystem AdministratorReston, VA$146,000–$194,000 / yearThis third-party service provider provides risk-intelligence services that may include analysis of sanctions and watchlists, adverse media, public-record information, and other lawful open-source or commercial data sources. To ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind: No Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process.
Systems Administrator Peraton IncSystems AdministratorLinthicum, MD$112,000–$179,000 / yearAs the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Other duties may include setting up administrator accounts, maintaining system documentation, tuning system performance, installing system wide software and allocating mass storage space.
Senior System Administrator ClearEdgeSenior System AdministratorLinthicum, MDFull timeThis position is ideal for an experienced system administrator who is comfortable working at the command line, enjoys maintaining stable systems, and values operational excellence. In this role, you will be responsible for maintaining system health, applying updates, supporting cloud-based infrastructure, and ensuring systems remain reliable, compliant, and operational.
Group Administrator Johns Hopkins Applied Physics LaboratoryGroup AdministratorLaurel, MarylandFull timeAPL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development. Assist group staff with various APL procedures including professional society membership, class/conference registration, travel preparation and reimbursement, meeting setup and coordination, etc.
System Administrator - Active Ts/Sci With CI Poly ENS Solutions, LLCSystem Administrator - Active Ts/Sci With CI PolyWashington, DCENS consults for the Department of Defense (DoD) and Intelligence Community (IC) providing innovative solutions in the core competency area of Identity, Credential and Access Management (ICAM), Software Development, Cyber and Network Security, System Engineering, Program/Project Management, IT support, Solutions, and Services that yield enduring results. Principal technologies: Java, Java Persistence API (JPA), Java Web Services (JAX-RS), Java Cryptography Extension (JCE), Hibernate, Spring, JavaScript, Apache Ant, Apache HTTPD, and Apache Tomcat.
Citrix Infrastructure Administrator Leidos Holdings IncCitrix Infrastructure AdministratorArlington, VA$73,450–$132,775 / yearThe DISA CESO ITSS team provides network operations and cyber defense support to the Defense Information Systems Agency (DISA), enabling secure and reliable communications for the Department of Defense (DoD) and Combatant Commands (COCOMs). 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.
Linux Systems Administrator Lentech IncLinux Systems AdministratorLaurel, MDLentech's clients achieve full life-cycle support and cost-effective managed services supporting enterprise computing and applications initiatives for Government agencies. Lentech's Mission Technical Solutions Division is focused on providing engineering, operations, I&T and technical services to civil and defense customers primarily in the aerospace fields.
Systems Administrator Securiport LLCSystems AdministratorReston, VAServes as a senior escalation point for complex technical issues involving servers, networks, databases, endpoints, cloud services, backup systems, and enterprise applications. The Systems Administrator works closely with IT team members, vendors, and business stakeholders to support daily operations, resolve technical issues, implement technology solutions, and assist with infrastructure improvement initiatives.
Senior ASE Database Administrator Raydon CorpSenior ASE Database AdministratorAlexandria, VA3+ years of experience conducting general database administration tasks such as developing POSTGRESQL Server database objects, database server implementations, database architecture and schema design, code deployments, backups, and creation of DB authentication principals, system, and query performance tuning. 5+ experience with Sybase RDBMS technology stack (ASE, REP, etc), systems management tools and implementing new features and functionality, performance tuning, planning, and executing database and replication server upgrades, applying EBF/SR patches, disaster recovery planning and testing.
Unix/Linux Administrator System OneUnix/Linux AdministratorWashington, DC$150,000 / hourDesign and maintain the enterprise patch and configuration management architecture (Red Hat Satellite, Ansible or Ansible Automation Platform), converting manual administrative work into automated, repeatable, version-controlled workflows. Author and maintain security hardening baselines aligned to CIS Benchmarks and applicable DISA STIGs; own vulnerability scan remediation and support FISMA and NIST SP 800-53 control implementation, POA&M closure, and audit evidence.
Senior OpenShift Virtualization Administrator System OneSenior OpenShift Virtualization AdministratorWashington, DCRemote$64.25–$78 / hourRed Hat Certified Specialist in OpenShift Virtualization (EX316) or equivalent; VMware Certified Professional - Data Center Virtualization (VCP-DCV) accepted with commitment to obtain EX316 post-hire. Lead enterprise virtualization operations on Red Hat OpenShift Virtualization (Container-native Virtualization / KubeVirt) in support of the SEC ISS contract and SEC OIT infrastructure mission.
NewSystems Administrator III (Multi-Cloud Engineer) System OneSystems Administrator III (Multi-Cloud Engineer)Gaithersburg, MDRemote$62.50 / hourOperate effectively across multiple cloud environments—Azure, AWS, GCP—developing and implementing reusable cloud patterns and solutions using Infrastructure As Code for self-service secure delivery. Diagnose and address network connectivity issues, maintain and correct security groups, route tables, subnet and VPC allocations, VPNs, peerings, balancing reliability and costs.
Lead Network Engineer (WAN Design and Implementation) System OneLead Network Engineer (WAN Design and Implementation)Fairfax, VA$100–$120 / hourThis role will manage a team of seven network engineers across multiple time zones, drive technical decisions, and partner closely with customer stakeholders and engineering leadership to ensure successful delivery. Lead the design and implementation of a global Wide Area Network (WAN) and serve as the senior customer-facing technical authority for the program.
NewSenior Windows Systems Engineer System OneSenior Windows Systems EngineerWashington, DC$63–$75 / hourBachelor’s degree in computer science, information systems, engineering, or a related technical field, and eight (8) or more years of progressive Windows Administration and engineering experience OR Master’s degree in a related field and at least 6 years of relevant experience in above areas. Familiarity with orchestration tools like Ansible, Chef, or Puppet for configuration management and ability to implement Continuous Integration/Continuous Deployment (CI/CD) pipelines for cloud infrastructure provisioning and deployment automation.?.
NewWindows Infrastructure Engineer/Architect System OneWindows Infrastructure Engineer/ArchitectWashington, DCRemote$63–$75 / hourBachelor’s degree in computer science, information systems, engineering, or a related technical field, and eight (8) or more years of progressive Windows Infrastructure Engineer/Architect experience OR Master’s degree in a related field and at least 6 years of relevant experience in above areas. They will be responsible for architecting robust identity solutions, managing our Enterprise Public Key Infrastructure (PKI), and providing high-level tier -3 architectural support to ensure optimal security, compliance, and system availability across our hybrid environment.