1,770 Results for

Network Administrator Jobs in Linthicum Heights, MD

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RedHat Linux Systems Administrator (Sr.) Quadrant, Inc.

Pentagon, VA

Quick Apply

Perform account administration, operating system maintenance, resource monitoring, log analysis, performance tuning, storage support, and system troubleshooting. Coordinate with government leads, system administrators, database administrators, application teams, cybersecurity personnel, and external support organizations.

11 days ago

Linux Systems Administrator Red Arch Solutions

Annapolis Junction, MD

$185,000–$200,000 / year

The System Administrator shall be responsible for providing support for a large-scale Linux system including installation of COTS/GOTS/FOSS software, day-to-day operations, monitoring, and problem resolution for all the compute, network, memory, and storage system components. 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.

30+ days ago

Linux Systems Administrator ManTech

Fort Meade, MD

MANTECH seeks an experienced and passionate, career and customer-oriented Linux Systems Administrator to join our team located in the Fort Meade, MD area. + Constantly operate a computer and other office productivity machinery, such as, the copy machine/fax machine/computer/printer.

30+ days ago

Senior Linux System Administrator 3 Geon Technologies

Columbia, Maryland

$195,000–$250,000 / year

The signal processing and hardware focused sectors of Geon are supported by the work Geon conducts with open architectures, open frameworks, and open systems that facilitate the rapid development, integration, and deployment of techniques and capabilities to operational contexts. We are looking for fully-cleared individuals that have an ambition to leverage their proven experience in building high performance processing systems and solutions to architect, develop, productize and deploy a whole new breed of open-sensor framework based on the industries leading solutions.

30+ days ago

Splunk Administrator Leidos

Suitland, Maryland

August 31, 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. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

14 days ago

System Administrator -TS/SCI Security Clearance Required Power3 Solutions

Columbia, Maryland

Tulzi Technologies, LLC (Tulzi) prides ourselves on an open, and honest culture in the workplace which builds a morale conducive to inspiring growth on our team, while balancing lifestyle by supporting personal and family goals with flexibility. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

16 days ago

IT Security Compliance Administrator II Iridium Communications Inc

McLean, VA

$75,000–$95,000 / year

Iridium is an award-winning satellite communications company operating the world''s only truly global voice and data network, delivering reliable connectivity anywhere on Earth. Now part of Iridium, Aireon is the world's only space-based air traffic surveillance system, providing real-time visibility of aircraft over oceans, the poles, and remote regions.

24 days ago

Senior Cloud Administrator Peraton Inc

Remote

$104,000–$166,000 / year

In this fully remote hands-on role you will serve as the day-to-day operational owner of the AWS cloud infrastructure supporting a diverse development workforce of 50+ engineers, 20 business analysts, and Government personnel across fully separated development, testing, staging, and production environments. Administer data operations: cross-AZ/cross-region data transfer, AWS KMS key management, CloudTrail audit logging, centralized S3 log archival, and AWS Backup configurations.

10 days ago

Linux Administrator BAE Systems Plc

Aberdeen Proving Ground, MD

$64,926–$110,374 / year

As one of the most geographically diverse international defense companies, we deliver a full range of products and services spanning air, land, maritime, space, and cyber, including advanced electronics, intelligence solutions, and dedicated customer support. In support of the ARL DoW Supercomputing Resource Center, BAE Systems provides program management and technical support necessary to advance services, capabilities, infrastructure, and technologies.

10 days ago

Mid Level Systems Engineer Splunk Administrator Peraton Inc

Annapolis Junction, MD

$176,000–$282,000 / year

D. Benefits: 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. The role combines hands-on Splunk engineering with cyber defense, continuous monitoring, incident response, vulnerability and risk assessment, security architecture, and systems integration across computing, network, and enclave environments.

30+ days ago

Systems Administrator ManTech

Linthicum Heights, MD

Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and/or virtual communication, which may involve delivering presentations. You will be responsible for the installation, configuration, and maintenance of cryptographic hardware and software solutions, ensuring compliance with industry regulations and safeguarding sensitive data for the Department of Defense and the Community.

30+ days ago

Senior Systems Administrator, TS/SCI w/Poly Peraton Inc

Annapolis Junction, MD

$146,000–$234,000 / year

The ideal candidate is comfortable working across the stack - from configuring VLANs and port security on Cisco switches to imaging endpoints and troubleshooting Windows 10/11 clients - while delivering responsive, professional customer support to end users. Benefits: 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.

30+ days ago

Network Engineer - TS/SCI w/ Poly GD Information Technology

McLean, Virginia

Manage and allocate network installation and engineering tasks, configure and maintain communications systems, familiarity with implementation of LAN and WAN equipment including firewalls, servers, workstations, routers, switches, hubs, storage devices, A/V equipment and equipment racks. Candidate should be able to define internal and external customer IT infrastructure architecture needs and then design solutions to meet those needs to include: capacity planning, systems configuration and tuning, monitoring backups, and installations of hardware and software.

2 days ago

Systems Administrator 2 | TS/SCI w/ poly security clearance Power3 Solutions

Annapolis Junction, Maryland

Provide support for the escalation and communication of status to agency management and internal customers -Optimize system operations and resource utilization, and perform system capacity analysis and planning -Provide in-depth experience in trouble-shooting IT systems -Provide detailed analysis and feedback to agency management and internal customers for escalated tickets -Provide support for the dispatch system and hardware problems and remains involved in the resolution process -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. The Level 2 System Administrator (SA) must possess the following capabilities: -Provide support for implementation, troubleshooting and maintenance of IT systems-Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems-Manage the daily activities of configuration and operation of IT systems -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.

30+ days ago

Systems Administrator 3| TS/SCI w/ poly security clearance Power3 Solutions

Annapolis Junction, Maryland

Provide support for the escalation and communication of status to agency management and internal customers -Optimize system operations and resource utilization, and perform system capacity analysis and planning -Provide in-depth experience in trouble-shooting IT systems -Provide detailed analysis and feedback to agency management and internal customers for escalated tickets -Provide support for the dispatch system and hardware problems and remains involved in the resolution process -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 -Support the design of systems, mission architecture and associated hardware -Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA) - Analyze and resolve complex problems associated with server hardware, applications and software integration. The Level 3 System Administrator (SA) must possess the following capabilities: -Provide support for implementation, troubleshooting and maintenance of IT systems-Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems-Manage the daily activities of configuration and operation of IT systems -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.

30+ days ago

Systems Administrator 2 Lentech Inc.

Annapolis Junction, MD

Full time

Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance. Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems (U) 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.

30+ days ago

Database Administrator Sr - Infrastructure as Code / Full Stack Engineer Lockheed Martin Corp

Bethesda, MD

Remote

$122,600–$227,600 / year

GeoZone Definition: GeoZones are geographic groupings created by Lockheed Martin to align compensation ranges with regional labor markets and cost-of-labor differences across the United States. This team covers Virtualization, Server OS (Windows, RHEL), Database (SQL Server, Oracle), Patching and Content Management (Satellite) product development, maintenance and operational support.

30+ days ago

Systems Administrator II Trace3 Inc

$100,000–$110,000 / year

The 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.

30+ days ago

Senior Network And Cloud Engineer - AWS Hybrid Infrastructure Concept Solutions

Washington, DC

$160,000–$170,000 / year

For 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. Configure and maintain VPC network components, including subnets, route tables, security groups, network access control lists, endpoints, and shared connectivity across AWS accounts.

30+ days ago

Windows Systems Administrator - TS/SCI w/Polygraph GD Information Technology

McLean, Virginia

Demonstrated experience with Windows systems engineering and administration, including MSSQL databases, Active Directory Certificate Services (ADCS), VM clusters, Hyper-V, Data Protection Manager, and PowerShell scripting. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.

2 days ago

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Network Administrator Jobs in Linthicum Heights, MD

RedHat Linux Systems Administrator (Sr.) Quadrant, Inc.

Linux Systems Administrator Red Arch Solutions

Linux Systems Administrator ManTech

Senior Linux System Administrator 3 Geon Technologies

Splunk Administrator Leidos

System Administrator -TS/SCI Security Clearance Required Power3 Solutions

IT Security Compliance Administrator II Iridium Communications Inc

Senior Cloud Administrator Peraton Inc

Linux Administrator BAE Systems Plc

Mid Level Systems Engineer Splunk Administrator Peraton Inc

Systems Administrator ManTech

Senior Systems Administrator, TS/SCI w/Poly Peraton Inc

Network Engineer - TS/SCI w/ Poly GD Information Technology

Systems Administrator 2 | TS/SCI w/ poly security clearance Power3 Solutions

Systems Administrator 3| TS/SCI w/ poly security clearance Power3 Solutions

Systems Administrator 2 Lentech Inc.

Database Administrator Sr - Infrastructure as Code / Full Stack Engineer Lockheed Martin Corp

Systems Administrator II Trace3 Inc

Senior Network And Cloud Engineer - AWS Hybrid Infrastructure Concept Solutions

Windows Systems Administrator - TS/SCI w/Polygraph GD Information Technology

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