Senior IT Systems Administrator Jobs in Baltimore, MD

1 - 20 of 882 Jobs

IT Systems Administrator Emergency Essential Shift workJob Title - IT Systems Administrator Emergency Essential Shift work

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Maryland, USA

Full-time

Job Description What We're Doing: Lockheed Martin, Cyber & Intelligence invites you to step up to one of today's most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you'll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. Here, yo

Sr. IT Systems Engineer (SaaS tools & Endpoint Management)- RemoteJob Title - Sr. IT Systems Engineer (SaaS tools & Endpoint Management)- Remote

Maxonic, Inc.Company Name - Maxonic, Inc.

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Remote

Contract, Third Party

Maxonic maintains a close and long-term relationship with our direct client. In support of their needs, we are looking for a Sr. IT Systems Engineer/ IT Generalist Job Description: Job Title: Sr. IT Systems Engineer/ IT Generalist Job Type: Contract or contract to hire (6 - 12 months) Location: Remote If you are comfortable remaining as a contractor. However, if you are looking to convert to a full-time role, you will eventually be required to work onsite (5 days a week) at one of the following

IT Sr Systems Administrator - virtualJob Title - IT Sr Systems Administrator - virtual

Alight Solutions LLCCompany Name - Alight Solutions LLC

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New Jersey, USA

Full-time

Are you a DevOps enthusiast looking for an exciting opportunity to showcase your skills? Look no further! We're on the lookout for a dynamic DevOps Engineer to join our team! Our Story At Alight, we believe a company's success starts with its people. At our core, we Champion People, help our colleagues Grow with Purpose and true to our name we encourage colleagues to "Be Alight." Our Values Champion People - be empathetic and help create a place where everyone belongs. Grow with purpose - b

Senior IT Systems Solution Architect IV (System Architect)Job Title - Senior IT Systems Solution Architect IV (System Architect)

General DynamicsCompany Name - General Dynamics

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Remote

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Systems Engineering Job Qualifications: Skills: Architecture Principles, Complex Systems, Complex Systems Design Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: GDIT is the leading systems integrator in the Zero Trust Defense sector market-developing and delivering inn

Senior Linux Systems AdministratorJob Title - Senior Linux Systems Administrator

LeidosCompany Name - Leidos

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Columbia, 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

Senior Systems Security AdministratorJob Title - Senior Systems Security Administrator

Johns Hopkins University AppliedPhysicsLaboratoryCompany Name - Johns Hopkins University AppliedPhysicsLaboratory

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Laurel, Maryland, USA

Full-time

Description Are you interested in creating new IT security capabilities and learning new cybersecurity technologies? Do you want to have a stake in the overall security posture and assessment of the IT infrastructure? If so, we're looking for someone like you to apply and join our team at APL! We are seeking a Senior Systems Security Administrator (SSA) to be part of APL 's Classified IT Services team. We provide technical expertise to meet compliance and security objectives in environments co

IT Asset AdministratorJob Title - IT Asset Administrator

DMICompany Name - DMI

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Crownsville, Maryland, USA

Full-time

About DMI DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports public sector agencies and commercial enterprises around the globe. Recognized as a Top Workplace, DMI is committed to delivering secure, ef?cient, and cost-effective solutions that drive measurable results. Learn more at

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

LeidosCompany Name - Leidos

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Annapolis, Maryland, USA

Full-time

Systems Administrator Senior - TS/SCI requiredJob Title - Systems Administrator Senior - TS/SCI required

General DynamicsCompany Name - General Dynamics

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Fort Meade, Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Computing, IT Hardware, System Administration Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Systems Administrator Senior - TS/SCI required Transform technology into opportunity as a Syste

Systems Administrator (IT Program Services)Job Title - Systems Administrator (IT Program Services)

NightwingCompany Name - Nightwing

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Annapolis, Maryland, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

Classified Virtualization Systems AdministratorJob Title - Classified Virtualization Systems Administrator

Johns Hopkins Applied Physics Laboratory (APL)Company Name - Johns Hopkins Applied Physics Laboratory (APL)

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Laurel, Maryland, USA

Full-time

Description Do you thrive in and love a fast-paced, dynamic classified environment? Do you want to be empowered to take ownership and stake in the overall engineering and operations of the IT infrastructure? Are you interested in learning new technologies and creating new IT capabilities? If so, we're looking for someone like you to apply and join our team at APL! We are ranked as one of Computerworld 's Top Places to Work in IT for 6 years running, and we are seeking a Virtualization Systems

SAR/SCI Systems Administrator - Advanced 1Job Title - SAR/SCI Systems Administrator - Advanced 1

Johns Hopkins Applied Physics Laboratory (APL)Company Name - Johns Hopkins Applied Physics Laboratory (APL)

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Laurel, Maryland, USA

Full-time

Description Do you love solving complex technical problems in customized IT environments? Are you passionate about providing advanced system administration support for unique, mission-critical projects? Do you like contributing to innovative projects that directly impact national security? If so, we're looking for someone like you to join our team at APL. We are seeking a talented Tier 3 Systems Administrator to expertly manage, secure, and maintain customized Windows and Linux environments sup

Classified Virtualization Systems AdministratorJob Title - Classified Virtualization Systems Administrator

Johns Hopkins Applied Physics Laboratory (APL)Company Name - Johns Hopkins Applied Physics Laboratory (APL)

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Laurel, Maryland, USA

Full-time

Systems AdministratorJob Title - Systems Administrator

Base-2 Solutions, LLCCompany Name - Base-2 Solutions, LLC

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Annapolis, Maryland, USA

Full-time

Job Description Base-2 Solutions is seeking a Systems Administrator 3 who provides support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides 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. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identi

Systems Administrator, JuniorJob Title - Systems Administrator, Junior

SilverEdgeCompany Name - SilverEdge

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Maryland, USA

Full-time

Overview Silveredge Government Solutions is seeking a Junior System Administrator with basic configuration, monitoring, troubleshooting, analysis and repair of Desktop and Server systems, Disaster Recovery Systems switches, networks, video systems. Participates in the design, installation and administration of local systems using multiple protocols and various computer systems. Writes detailed/techical problem reports, assists with root cause analysis and recommendations for configuration and p

Windows Systems AdministratorJob Title - Windows Systems Administrator

SAICCompany Name - SAIC

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Adelphi, Maryland, USA

Full-time

Job ID: 2507346 Location: ADELPHI, MD, US Date Posted: 2025-07-08 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking a proven Windows Systems Administrator to join the Army Research Laboratory (ARL) Information Technology (IT) Modernization program and support the full range of Enterpris

Classified Virtualization Systems AdministratorJob Title - Classified Virtualization Systems Administrator

Johns Hopkins University AppliedPhysicsLaboratoryCompany Name - Johns Hopkins University AppliedPhysicsLaboratory

•

Laurel, Maryland, USA

Full-time

Systems AdministratorJob Title - Systems Administrator

SAICCompany Name - SAIC

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Beltsville, Maryland, USA

Full-time

Job ID: 2507062 Location: BELTSVILLE, MD, US Date Posted: 2025-06-27 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: TS/SCI Potential for Remote Work: No Description SAIC is seeking a Systems Administrator to support a large federal government agency. Employee will perform on-site, at a secure government location on the day shift, Monday thru Fri

Senior Linux Administrator - TS/SCI w/PolyJob Title - Senior Linux Administrator - TS/SCI w/Poly

JacobsCompany Name - Jacobs

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Linthicum Heights, Maryland, USA

Full-time

Your Impact: Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. We are seeking an Senior Linux Administrator to join our team of passionate individuals on our Prime contract based out of Linthicum, Maryland. In this role you will support challenging, mission-critical projects that make a direct impact on the nation's security and intelligence mission. Responsibilities: Provides technical management, operations, and maintenance of sp

Systems AdministratorJob Title - Systems Administrator

BlueHaloCompany Name - BlueHalo

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Annapolis, Maryland, USA

Full-time

At BlueHalo, an AV Company, our Cyber experts operate at the mission's edge. Using advanced cyber techniques, our team of technologist and analysts employ capabilities spanning traditional computing environments to Internet of Things (IoT), including offensive and defensive cyber operations and analysis, signals intelligence (SIGINT) discovery, and data science. Our team is expanding to do the big things that have never been done before - the things the nation and the world are counting on us to