Senior Windows Administrator jobs in Baltimore, MD

Remote or Roanoke, Virginia

•

Today

Overview Empower AI is AI for government. Empower AI gives federal agency leaders the tools to elevate the potential of their workforce with a direct path for meaningful transformation. Headquartered in Reston, Va., Empower AI leverages three decades of experience solving complex challenges in Health, Defense, and Civilian missions. Our proven Empower AI Platform provides a practical, sustainable path for clients to achieve transformation that is true to who they are, what they do, how they wo

Full-time

USD 87,320.00 per year

Sr. Windows Systems Administrator TS/SCI Poly

Annapolis, Maryland

•

Today

Senior Windows System Administrator; requires TS/SCI Polygraph up front. Leidos has a new and exciting opportunity for a Senior Windows System Administrator in our Intel Sector's 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,

Full-time

USD 116,350.00 - 210,325.00 per year

Senior Windows System Administrator

Annapolis, Maryland

•

Today

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2026! Belay Technologies is seeking a Senior Windows System Administrator to join a high-performing Agile team operating within the Scaled Agile Framework (SAFe) in support of a complex, fast-paced program. In this role, the selected candidate will provide daily systems administration and operations and maintenance support across multiple systems with a broad geographic footprint. Key responsibilities includ

Full-time

USD 164,000.00 - 200,000.00 per year

Windows Administrator (Annapolis Junction, MD)

Maryland

•

Today

Description & Requirements Maximus is seeking a Senior Windows Administrator to join our team. As a Senior Windows Administrator, you will be responsible for overseeing the design, implementation, and maintenance of windows-based servers and systems. Your role will involve managing server infrastructure, troubleshooting issues, and ensuring the reliability and security of the Windows environment. This is an onsite position in Annapolis Junction, MD, requiring five days per week onsite and an act

Full-time

USD 70,000.00 per year

MD-Windows Systems Administrator - TS/SCI w/ Polygraph

Annapolis, Maryland

•

Today

Location: Annapolis Junction, MD Category: Systems Administrator Travel Required: No Remote Type: No Clearance: TS/SCI w/ Polygraph A Senior Windows System Administrator to join a high-performing Agile team operating within the Scaled Agile Framework ?SAFe? in support of a complex, fast-paced program. In this role, the selected candidate will provide daily systems administration and operations and maintenance support across multiple systems with a broad geographic footprint. Key responsibilities

Full-time

USD 92,300.00 - 166,850.00 per year

Senior Network Administrator

Fort Meade, Maryland

•

Today

Location: Ft. Meade, Maryland Type: Contract Job #4059 Title: Senior Network Administrator Location: Ft. Meade, MD Compensation Range: $130 - $150k Clearance: * Active DoD TS (TS/SCI eligibility required) 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 work/life experience

Full-time

USD 130,000.00 - 150,000.00 per year

Senior System Administrator (VDI)

Fort Meade, Maryland

•

Today

Location: Ft. Meade, Maryland Type: Contract Job #4058 Title: Senior System Administrator (VDI) Location: Ft. Meade, MD Compensation Range: $130 - $150k Clearance: * Active DoD Top Secret (TS/SCI eligibility required)* 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 work/li

Full-time

USD 130,000.00 - 150,000.00 per year

Senior Network Administrator

Odenton, Maryland

•

Today

The Digital Modernization Sector at Leidos has a career opening for a Senior Network Administrator on a DISA contract. This role is 100% on the customer site at Fort Meade, MD. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS). PRIMARY RESPONSIBILITIES: Works independently to perform configuration of assets to include switches, load balancers, routers, and FirewallsPerform routine maintenance, troubleshooting, updates a

Full-time

USD 116,350.00 - 210,325.00 per year

Sr. Window Systems Administrator

Fort Meade, Maryland

•

Today

Overview Amyx is seeking to hire a Senior Windows Systems Administrator to support DISA's Hybrid Cloud computing environment on-site at one of their six (6) locations in the U.S. (Fort Meade, MD; Crystal City, VA; Mechanicsburg, PA; Montgomery, AL; Oklahoma City, OK; Ogden, UT). The position will primarily support Windows operating systems running on multiple versions, within physical, virtual or cloud-based operating environments. Responsibilities Will configure, maintain, manage, and troubl

Full-time

Sr. Linux/VMware System Administrator

Laurel, Maryland

•

Today

MANTECH seeks a motivated, career-driven, and customer-focused Sr. Linux/VMWare System Administrator to join our team in Laurel, MD. This position supports the high-visibility Enterprise Infrastructure Services (EIS) organization, responsible for the delivery and security of MPO?s Enterprise Information Technology (EIT), the foundation for enterprise-wide services. As a Senior System Administrator, you will work alongside customers, Integrated Product Teams (IPTs), and vendors to support the imp

Full-time

Senior System Administrator

Laurel, Maryland

•

Today

About Leidos Leidos is a FORTUNE 500 company bringing a mix of innovative technology and sector expertise to customers in the national security, engineering, and health industries. We deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. Guided by our Mission, Vision, and Values, Leidos empowers its teams, contributes to its communities, and operates sustainably-always with a commitment to doing the right thing for our

Full-time

USD 92,300.00 - 166,850.00 per year

Senior System Administrator

Fort Meade, Maryland

•

Today

Assured Information Security (AIS) has an opening for a Senior System Administrator. In 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. *This is an onsite position located at Ft. Meade and requires a TS/SCI w/FS Poly.* What You'll Do: Support for implement

Full-time

USD 150,000.00 - 175,000.00 per year

Mid/Senior System Administrator

Annapolis, Maryland

•

Today

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2026! Belay Technologies seeks a Mid-Level or Senior Level System Administrator (SA) to join our intel team. The selected individual will provide system administration support for a large, complex network environment with geographically distributed systems. The role supports system engineering requests by delivering solutions that meet operational needs, and by upgrading, sustaining, and maintaining existin

Full-time

USD 114,000.00 - 160,000.00 per year

Mid/Senior System Administrator

Annapolis, Maryland

•

Today

Mid/Sr System Administrator Leidos has a new and exciting opportunity for a Mid/Sr System Administrator in our Intel Sector's 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 im

Full-time

USD 92,300.00 - 166,850.00 per year

Senior Windows Server Systems Administrator

Remote

•

3d ago

Job Title: Senior Windows Server Systems Administrator Location: Washington, DC Type: Contract Compensation: $40- $65per hour Work Model: Remote offsite Hours: 40.0 hours per week Security Clearance: U.S. Citizenship required and current- ATF (Bureau of Alcohol, Tobacco, Firearms and Explosives) Public Trust preferred Overview This Senior Windows Server Systems Administrator can work fully remote but must be in the DC Metro area in case the team needs to meet in person. This is likely to be a c

Easy Apply

Contract

$39.74

Senior IT Administrator

College Park, Maryland

•

Today

About IonQ: IonQ, Inc. [NYSE: IONQ] is the world's leading quantum platform and merchant supplier - delivering integrated quantum solutions across computing, networking, sensing, and security. IonQ's newest generation of quantum computers, the IonQ Tempo, is the latest in a line of cutting-edge systems that have been helping customers and partners including Amazon Web Services, and AstraZeneca achieve 20x performance results and accelerate innovation in drug discovery, materials science, financi

Full-time

USD 107,123.00 - 140,251.00 per year

Windows Systems Administrator

Remote or Auburn, Washington

•

Today

job summary: We are seeking an experienced Windows Systems Administrator to support and maintain core enterprise infrastructure, virtualization platforms, and cloud environments. In this role, you will play a critical part in keeping operational systems secure through patch management, vulnerability remediation, and ticket resolution. You will work within a collaborative infrastructure team supporting multi-region environments and driving project improvements. location: Telecommute job type: C

Contract

USD40 - USD50

Senior Windows Architect / SME remote

Remote

•

Today

Position Summary The Senior Infrastructure Automation Engineer will serve as a senior technical leader and subject matter expert driving infrastructure modernization across compute, storage, virtualization, Windows (preferred), Linux, cloud, and automation domains. This role requires a unique blend of hands-on engineering expertise and strategic architectural leadership, with responsibility for designing, building, and modernizing automation frameworks, infrastructure pipelines, and Infrastruct

Contract

90-125/hr

Mid-Senior Level System Admin

Annapolis, Maryland

•

Today

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2019, runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a System Admin to join our intel team. The selected individual will provide system administration support for a large, complex network environment with geographically distributed systems. The role supports system engineering requests by delivering solutions that meet operational needs, and by upgrading, sustaining, and maintaining

Full-time

USD 114,000.00 - 190,000.00 per year

IT System Administration - Senior/Specialist

Remote or Lacey, Washington

•

Today

Salary : $94,620.00 - $127,248.00 Annually Location : Thurston County - Lacey, WA Job Type: Full Time - Permanent Remote Employment: Flexible/Hybrid Job Number: 2026-ITSO1193-07303 Department: Dept. of Ecology Division: Information Technology Services Opening Date: 09/02/2026 Closing Date: Continuous Salary Information: The high end of the salary range, Step M is typically a longevity step Description Keeping Washington Clean and Evergreen The Department of Ecology is hiring an IT System Adminis

Full-time

USD 94,620.00 - 127,248.00 per year

Senior Windows Administrator jobs in Baltimore, MD, USA