Sr. Network Engineer ManTech International CorpSr. Network EngineerLaurel, MD$141,500–$236,000 / yearAs a Senior Network Engineer/Architect, you will work alongside customers, Integrated Product Teams (IPTs), and vendors to support the implementation and compliance of advanced EIT capabilities through Data Center & Compute Services. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.
System Administrator, Mid Booz Allen Hamilton IncSystem Administrator, MidArlington, VA$62,000–$141,000 / yearExperience configuring and managing Unix, Linux, and Windows operating systems, including installing or loading operating system software, troubleshooting, maintaining the integrity of and configuring network components, and implementing operating systems enhancements to improve security, reliability, and performance. 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.
Senior Network Engineer AerovironmentSenior Network EngineerAnnapolis Junction, MD$102,000–$255,000 / yearWithin the last ten (10) years, a minimum of seven (7) years of experience: - Establishing LANs, including the creation and configuration of common network services.- Assembling and configuring equipment racks comprised of RAIDs, switches, and Linux hosts, as well as installing fiber optic and copper cabling.- Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity, as well as alignment with market data.
NewSenior Enterprise Network Engineer Concept Solutions LLCSenior Enterprise Network EngineerWashington, DC$140,000–$160,000 / yearFor over 25 years, CS has been a trusted partner for the Federal Aviation Administration (FAA), Department of Homeland Security (DHS), Department of Justice (DOJ), Department of Defense (DoD) and other federal agencies delivering vital IT, security, and project management services. The Senior Enterprise Network Engineer will serve as a senior technical leader responsible for designing, modernizing, securing, and sustaining highly available enterprise network environments supporting critical government operations.
Systems Administrator BAE Systems PlcSystems AdministratorSpringfield, VA$118,095–$200,762 / yearAbout BAE Systems Intelligence & Security BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. The test center support team maintains smooth operation of multi-user computer systems, coordinates with network engineers, monitors and manages system resources, and performs systems security administration functions.
NewDeputy Network Operations Security Center (NOSC) Manager LeidosDeputy Network Operations Security Center (NOSC) ManagerFort Belvoir, VirginiaThe I3TS program provides enterprise-wide IT support to enable the Defense Threat Reduction Agency’s (DTRA) Information Management & Technology Directorate (J6) 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. September 3, 2026 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.
IT Sr. Systems Administrator (On-site) No C2C HEPCO, Inc.IT Sr. Systems Administrator (On-site) No C2CManassas, VA$50–$57.69 / hourOur client is seeking an experienced Senior Systems Administrator to manage and maintain Microsoft Windows systems, endpoint security, cloud infrastructure, and virtual environments. The ideal candidate will have extensive experience with Windows Server administration, Active Directory, cybersecurity, Azure, virtualization, and automation.
Senior Systems Administrator/Helpdesk Engineer LeidosSenior Systems Administrator/Helpdesk EngineerGaithersburg, MarylandAs a trusted technical expert, you’ll do more than troubleshoot systems, you’ll solve complex challenges, optimize infrastructure, support cloud and on-premises environments, and provide exceptional customer service to users operating in fast-paced, mission-critical settings. July 10, 2026 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.
New5Yrs Senior Network Security Engineer with cisco exp - Onsite GoIntellects Inc.5Yrs Senior Network Security Engineer with cisco exp - OnsiteWashington, DCFull timeMonitor security measures in place within network perimeter, ensuring breaches do not occur and information is safeguarded from unauthorized access; Proactively oversee the activities involved in quality resolution of complex technical issues, responding with an appropriate sense or urgency to problems escalated to Network Engineer’s level; Coordinate with appropriate personnel to determine positive solutions that increase end user satisfaction, following through to completion, and communicating resolution results; escalate to management any situation that could adversely impact the service provided to the end user; Monitor trends in documented incidents and determine appropriate actions necessary to eliminate future occurrences and improve customer service levels in an appropriate timeframe; Provide network design services. Technical Skills: Security: Cisco Firepower (Next generation firewall), Cisco ASA Firewalls, Cisco ISE 2.0 and above (Identity Services Engine), Cisco NGFW (Next Generation Firewall), Cisco AMP (Advanced Malware Protection), Cisco Firepower.
Endpoint Experience Administrator III Blue OriginEndpoint Experience Administrator IIIWashingtonand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.
Mid/Senior System Administrator LeidosMid/Senior System AdministratorAnnapolis Junction, MarylandCreating and maintaining complex server enclaves, including analyzing system scanning reports, patching, cert renewals, vulnerability management assessments, and active directory configurations. August 28, 2026 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.
NewMid/Sr. System Administrator TS/SCI Poly LeidosMid/Sr. System Administrator TS/SCI PolyAnnapolis Junction, MarylandAugust 25, 2026 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. 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.
Senior System Administrator Assured Information Security, IncSenior System AdministratorFort Meade, MD$150,000–$175,000 / yearIn this role, you will deliver a wide range of system administration support based on experience level, including implementing and managing Red Hat Enterprise Linux and derivative IT environments, as well as installing, configuring, and maintaining Linux-based operating systems and services. Configure and manage UNIX and Windows (or other applicable) operating systems and install/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.
Classified Systems Administrator And Isso CACI International Inc.Classified Systems Administrator And IssoHerndon, VA$103,800–$218,100 / yearPay 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. Serve as the onsite Data Transfer Agent (DTA), performing, documenting, and auditing authorized classified data transfers while maintaining removable media accountability.
Systems Administrator II RecruitrelianceSystems Administrator IIMarylandRequired Qualifications: Experience: Ten (10) years of experience as a Systems Administrator in programs of similar scope, type, and complexity. You will be responsible for the configuration, maintenance, and troubleshooting of enterprise IT infrastructure, ensuring optimal system performance and security.
Cyber Systems Administrator, AI/ML Support TS/SCI w Poly PeratonCyber Systems Administrator, AI/ML Support TS/SCI w PolyLaurel, Maryland$86,000–$138,000 / yearFull timeBenefits: Peraton offers enhanced benefits to employees supporting this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap, and eligibility to participate in an attractive bonus plan. As part of a collaborative, high-impact integrated product development team, you’ll work on next-generation cyber and AI/ML capabilities hosted on large-scale compute clusters and AWS Cloud infrastructure.
Junior Systems Administrator PeratonJunior Systems AdministratorFort Meade, Maryland$112,000–$179,000 / yearFull timeYou will also provide assistance to users in accessing and using IT systems; provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems; provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan.
Specialized Infrastructure Services Systems Administrator PeratonSpecialized Infrastructure Services Systems AdministratorLaurel, Maryland$146,000–$234,000 / yearFull timeYou will also work with network, storage, and server personnel to define new or modified solutions to complex problems; respond to requests for new systems to meet capacity and user requirements; and install and administer user desktops for specific critical user-access systems. Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan.
Senior Systems Administrator (Cleared) - TEG IT Concepts IncSenior Systems Administrator (Cleared) - TEGSpringfield, VA$190,000–$195,000 / yearPerform and document all required actions necessary to obtain and maintain a full Authority To Operate (ATO) system accreditation, including implementing Security Technical Implementation Guides (STIG), collaborating with accreditation authorities, creating Plan of Action and Milestones (POA&M), populating XACTA, etc. Design, deploy, configure, secure, monitor, and manage a variety of cloud-based infrastructure components hosted within multiple cloud providers, including Amazon Web Service's VPC, EC2, RDS, Lambda, S3, Cloud Formation, CloudWatch, IAM, etc.
Assistant Administrator Ex Care Erickson Senior LivingAssistant Administrator Ex CareSpringfield, VirginiaProvide strategic and operational leadership for all Continuing Care departments, including nursing, dining services, admissions, resident services, therapeutic recreation, housekeeping, laundry, maintenance, and administration, ensuring an exceptional resident experience. Lead initiatives to drive occupancy growth across the Continuing Care continuum by cultivating relationships with residents, families, healthcare professionals, discharge planners, social workers, community organizations, and other key referral sources.