Windows/Linux System Administrator Jobs in Baltimore, MD

21 - 40 of 690 Jobs

System AdministratorJob Title - System Administrator

SAICCompany Name - SAIC

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Fort Meade, Maryland, USA

Full-time

Job ID: 2506155 Location: FORT MEADE, MD, US Date Posted: 2025-06-18 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC, a leading provider of systems engineering & integration, systems development & deployment, intelligence analysis and targeting, and training solutions for the Intelligence

System Administrator (SA1) (Government)Job Title - System Administrator (SA1) (Government)

AT&T Inc.Company Name - AT&T Inc.

•

Columbia, Maryland, USA

Full-time

Job Description: AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. MAROONMIDNIGHTS (MMN) Provide IT support and solutions developed for National Cryptologic University classified training

Senior Linux Systems Administrator - 10k Sign on BonusJob Title - Senior Linux Systems Administrator - 10k Sign on Bonus

LeidosCompany Name - Leidos

•

Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). 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. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immed

Systems Administrator - LINUX / ContainerizationJob Title - Systems Administrator - LINUX / Containerization

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Maryland, USA

Full-time

Job Description This position is participating in our External Referral Program. If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you'll receive a $3000 payment! This position may be eligible for a $25K sign on bonus for external hires! Systems Administrator - LINUX / Containerization WHAT WE'RE DOING Lockheed Martin, Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the evolving threat of cyber warfare.

System Administrator 1Job Title - System Administrator 1

JacobsCompany Name - Jacobs

•

Maryland, USA

Full-time

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. We are seeking a Database Administrator to join our team of passionate individuals. In this role you will support challenging, mission-critical projects that make a direct impact on the nation's security and intelligence mission. Responsibilities: A system administrator provides support for implementation, troubleshooting and maintenance of IT systems. Manages IT system infrastructu

Senior System AdministratorJob Title - Senior System Administrator

Cornerstone DefenseCompany Name - Cornerstone Defense

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Maryland, USA

Full-time

Location: Annapolis Junction, Maryland Type: Contract Job #3710 Title: Senior System Administrator Location: Annapolis Junction, MD Compensation Range: $190 -$210K *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall wor

System Administrator Level IVJob Title - System Administrator Level IV

General DynamicsCompany Name - General Dynamics

•

Laurel, Maryland, USA

Part-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Active Directory (AD), Operating Systems (OS), OS Configuration, PC Installation Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: System Administrator Level IV Description: Manag

System Administrator Level 3Job Title - System Administrator Level 3

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Linux, ServiceNow Platform, Unix Certifications: None Experience: 15 + years of related experience ship Required: Yes Job Description: Provides support for implementation, troubleshooting and maintenance of information Technology (

System Administrator Level IVJob Title - System Administrator Level IV

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Laurel, Maryland, USA

Part-time

System AdministratorJob Title - System Administrator

ManTechCompany Name - ManTech

•

Maryland, USA

Full-time

ManTech is seeking a motivated, career and customer-oriented System Administrator, to join our team in Hanover, MD. The team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation. This effort is the contract vehicle for the Enterprise Infrastructure Services organization overseeing MPO's Enterprise Information Technology (EIT). EIT is MPO's backbone- platform for all Enterprise users. Data Center & Compute Services is

System Administrator (SA2) (Government)Job Title - System Administrator (SA2) (Government)

AT&T Inc.Company Name - AT&T Inc.

•

Columbia, Maryland, USA

Full-time

System Administrator (SA3) (Government)Job Title - System Administrator (SA3) (Government)

AT&T Inc.Company Name - AT&T Inc.

•

Columbia, Maryland, USA

Full-time

System Administrator IJob Title - System Administrator I

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Communication, Information Technology (IT), Network Components, Operating Systems (OS), Troubleshooting Certifications: None Experience: 4 + years of related experience ship Required: Yes Job Description: Provides support for imple

System Administrator IIJob Title - System Administrator II

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Communication, Information Systems, Operating Systems (OS), System Security, Systems Software Certifications: None Experience: 4 + years of related experience ship Required: Yes Job Description: #ITPolyMD Provide support for imple

System Administrator 1Job Title - System Administrator 1

Realm OneCompany Name - Realm One

•

Annapolis, Maryland, USA

Full-time

RealmOne is the GOAT - where your career can reach the greatest heights! RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch security professionals. Join u

System Administrator 3Job Title - System Administrator 3

Realm OneCompany Name - Realm One

•

Annapolis, Maryland, USA

Full-time

Systems Administrator - Linux/WindowsJob Title - Systems Administrator - Linux/Windows

GovCIOCompany Name - GovCIO

•

Remote

Full-time

Overview Provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is hybrid with periodic customer site work activities. Must be willing to work nights, have a Security+ certification, and an active Top Secret clearance. Responsibilities Position Description: In this role you will: Pr

Systems Administrator - Linux/WindowsJob Title - Systems Administrator - Linux/Windows

GovCIOCompany Name - GovCIO

•

Remote

Full-time

System Administrator 0Job Title - System Administrator 0

Realm OneCompany Name - Realm One

•

Annapolis, Maryland, USA

Full-time

We're searching for talented individuals who provide intelligence, engineering, and mission management expertise for the Government. This program will maximize the effectiveness and efficiency of our country's most important missions both at home and abroad. If you are ready to support a high-performing team that truly makes a difference, then come join us! Job Description: This position is for System Administration support for development and production environments for a mission-critical Ide

System AdministratorJob Title - System Administrator

SilverEdgeCompany Name - SilverEdge

•

Fort Meade, Maryland, USA

Full-time

Overview SilverEdge is a premier provider of innovative cyber, software and intelligence solutions addressing everyday challenges to meet mission goals across the DOD and Intel Communities and beyond. We are seeking a system administrator to join our growing team and support our partners on a mission focused program. Demonstrated knowledge of analytical needs and requirements, query syntax, data flows, and traffic manipulation. Meet one of the following two skill sets: Skill set one: program