Senior Systems Administrator Jobs in Baltimore, MD

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Senior Systems Administrator (Linux/Windows)

GovCIO

Remote

Full-time

Overview GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to 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 in Washington, DC and will be a hybrid remote with periodic onsite customer work activities. Must be willing to work nights, have an active Sec

Senior Systems Administrator

Leidos

Laurel, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Senior 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 immediate v

Senior Linux Systems Administrator

Leidos

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 Administrator

Johns Hopkins University AppliedPhysicsLaboratory

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

Senior Linux Systems Administrator - 10k Sign on Bonus

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

Senior ServiceNow Systems Administrator

SAIC

Maryland, USA

Full-time

Job ID: 2504648 Location: ANNAPOLIS JUNCTION, MD, US Date Posted: 2025-04-15 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: TS/SCI with Poly Potential for Remote Work: No Description SAIC has an immediate opening for a ServiceNow Administrator in Annapolis Junction, on a very exciting program! In this role you will do many different things

Senior Linux Systems Administrator

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

Sr. Network / Systems Administrator - 243542

Medix IT Staffing Solutions

Remote

Full-time

Job Title: Sr. Network / Systems Administrator - 243542 Work Location: Remote - must reside in the state of California Onsite Requirements: This role will be required to be onsite in Palm Springs several times / month Compensation: Starting around $100K + ABOUT OUR CLIENT / ABOUT THIS ROLE Medix is currently seeking a Sr. Network / Systems Administrator for a full-time career opportunity with one of our top Healthcare clients in Riverside County. This is a permanent, full-time position with i

Lead Systems Administrator 3

PANGIAM a BigBear.ai Company

Columbia, Maryland, USA

Full-time

BigBear.ai is hiring a Lead Systems Administrator 3 for an exciting upcoming Cyber Operations contract award to support contracts that provide enterprise architecture and standards related systems engineering. You will be coordinating activities pertaining to the development, documentation, and maintenance of the enterprise architecture. Tasks will include providing system engineering, configuration management, deployment management, planning, scheduling, and related processes, tools, and practi

Systems Administrator with Network Skills - Clearance Required

Lockheed Martin Corporation

Annapolis, 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 payment! code-extrefer Senior Systems Network Administrator - Clearance Required WHAT WE'RE DOING Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity. As a Senior Systems Network Administrator, you'll be empowered to create "new realities"

Sr. Systems Admin

Zachary Piper Solutions, LLC

Aberdeen Proving Ground, Maryland, USA

Full-time

Piper Enterprise Solutions is seeking a Sr. Systems Admin - Linux for an on-site position located in Aberdeen, MD to join an amazing team responsible for providing technical and administrative support to support the DoD and other federal government agencies across all program activities. Responsibilities for the Sr. Systems Admin: Install, configure, and support the organization's local area network (LAN), wide area network (WAN), and Internet systems, ensuring seamless connectivity and perfor

Senior Network/Systems Administrator

GovCIO

Remote

Full-time

Overview GovCIO is currently hiring for a Senior Network/Systems Administrator with an active Secret clearance. This position will be located in Sterling, VA and will be a fully remote position. Responsibilities Establishes and maintains smooth operation of computer systems (to include operating systems, software and hardware) in networked or stand-alone configurations, maintains system integrity, and upgrades systems and/or servers as required. May create and document new methods supporting

Systems Administrator (IT Program Services)

Nightwing

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

Sr. ERP and CRM Systems Administrator

Eclaro

Remote

Contract

ECLARO is a company that delivers talent. We provide fully customizable, comprehensive talent acquisition and management of seasoned professionals through a number of business models, including: Consulting, Professional Hire, Global Integrated Delivery and Managed Services. Kindly email with a Word resume along with the position ID number, your hourly rate and availability. This is Homer Ballega. I am a Recruiter with ECLARO. We are first tier suppliers of technical services to several Fortune 5

Systems Admin, Sr. (Remote)

Stefanini

Pasay City, Metro Manila, Philippines

Full-time

Job Responsibilities:Utilize advanced hardware and software troubleshooting knowledge to support usersSupport enterprise Active Directory, Office 365, Azure AD, Identity and Access Management, Scripting and Automation, and Cloud Architecture, and Forefront Identity Management (FIM) environment.Act as Second Level Liaison between client, and service provider.Manage Active Directory, Office 365 and FIM platform backups.Define, write and maintain PPM (Process and Procedure Manual) for the projectAs

Lead Systems Admin (DataDog Admin)

Dexian DISYS

Remote

Contract, Third Party

Position: Lead Systems Admin Location: 100% Remote Job Type: 9 Months Contract (Long-term role with extensions) Hiring Manager Notes: Straight contract role.. Preference for someone local who can go to the office when needed but open to those who are not local as long as they can support EST hours. Using Datadog as primary tool and BigPanda (nice to have) for centralized Event Mgmt. First initiative: Datadog is in GovCloud now and plans to move to commercial Cloud within Datadog. Second init

Systems Sr Administrator

Unisys

Remote

Contract

CompuGain is an Information Technology and Business Consulting firm providing project-based solutions, software solutions and professional staffing services. -"Those authorized to work in the United States are encouraged to apply. We are unable to sponsor currently. Position: Systems Sr Administrator Location: Remote Length: Long Term Key Responsibilities Responsible for supporting the functionality and efficiency of one or more operating systems.* Lead teams in the delivery of second and/or th

IT Systems Engineer

Virginia Jobs

Remote or Charlottesville, Virginia, USA

Full-time

Are you a solutions-driven IT professional with a passion for creating seamless, reliable, and innovative computing experiences? The University of Virginia's Information Technology Services (ITS) seeks an experienced systems administrator for a position in our Storage, Backup, and Archive team. Commensurate with the candidate's experience, the role will be filled at the respective level that best matches the candidate's qualifications. In this role, you will support, maintain, and automate a va

ITSM Systems Admin - Lead Consultant

Allstate Insurance Company

North Carolina, USA

Full-time

National General is a part of The Allstate Corporation, which means we have the same innovative drive that keeps us a step ahead of our customers' evolving needs. We offer home, auto and accident and health insurance, as well as other specialty niche insurance products, through a large network of independent insurance agents, as well as directly to consumers. Job Description We are seeking a skilled and experienced Ivanti ITSM System Administrator with expertise in ServiceNow to join our IT team