senior systems administrator Jobs in district of columbia

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Senior Systems Administrator

US AI

North Bethesda, Maryland, USA

Full-time

WHO WE ARE US AI stands as a forward-thinking digital transformation enterprise, dedicated to enabling individuals to achieve remarkable feats through cutting-edge technology. As a leader in Artificial Intelligence, Cybersecurity and Self-Healing Infrastructure, we are actively seeking top-tier talent to spearhead the commercialization of groundbreaking products and propel our business to new heights. If you're passionate about pushing the boundaries of what's possible in the digital realm, the

Senior Systems Administrator, Classified IT

Aduril Industries

Washington, District of Columbia, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Senior Systems Administrator

Booz Allen Hamilton

Washington, District of Columbia, USA

Full-time

Job Number: R0221565 Systems Administrator, Senior The Opportunity: Your combination of people skills and technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of Defense ( DoD ) ? We're looking for a senior systems administrator who spe cia lizes in networking and working within classified environments supporting agencies with a solid background in windows operating systems to help u

Senior Systems Administrator

Booz Allen Hamilton

Arlington, Virginia, USA

Full-time

Job Number: R0221552 Systems Administrator, Senior The Opportunity: Your combination of people skills and te chn ical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the te chn ology supporting the Department of Defense ( DoD ) ? We're looking for a senior systems administrator who spe cia lizes in networking and working within classified environments supporting agencies with a solid background in windows operating systems to he

Sr. Systems Administrator

PANGIAM a BigBear.ai Company

Columbia, Maryland, USA

Full-time

Overview BigBear.ai is seeking a Sr. Systems Administrator. The System Administrator is responsible for implementing, troubleshooting, and maintaining Information Technology (IT) systems. This role manages IT system infrastructure and related processes, ensuring smooth day-to-day operations, monitoring, and problem resolution for client/server/storage/network devices and mobile devices. The administrator also supports the escalation and communication of status to agency management and internal

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 Systems Administrator

Apex Systems

Herndon, Virginia, USA

Full-time

Job#: 2077484 Job Description: Apex Systems is seeking a Senior Systems Administrator to work fully onsite in Herndon, VA. For immediate consideration, please email your updated resume to Maren at with "Senior Systems Administrator Herndon, VA" in the subject line. #Clearance required: Active Full Scope Polygraph Summary: We are seeking a Senior Systems Administrator to join a Specialized Infrastructure Operations team within the Information Technology & Data Analytics (IT&DA) organization i

Sr. Systems Administrator

MSITEK LLC

Herndon, Virginia, USA

Contract

- 5+ years of experience in an IT enterprise System Admin role or Cloud Admin position - 4+ years with PowerShell scripting for automation, extremely fluent in PowerShell and command lines - Experience with Windows firewalls - Expert level Microsoft Azure Administrator - Expert level Windows admin skills (Active Directory, DNS, Group Policy) - Security Clearance or ability to get a Clearance Nice to Have Skills and Experience -Bachelors in Computer Science - Professional industry certifications

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 (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 (Windows/Linux)

American Systems Corporation

Washington, District of Columbia, USA

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. THIS POSITION INCLUDES A $5,000 SIGN-ON BONUS! Responsibilities As a Senior Systems Administrator, you will: Support on-premises Windows and Linux infrastructure and applications.Provide Tier II support for production and devel

Senior Systems Administrator - TS/SCI with Polygraph

General Dynamics

Fort Belvoir, Virginia, 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, System Administration, Windows Applications Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: General Dynamics Information Technology (GDIT) is looking for a skilled IT Syste

IT Sr Systems Administrator - virtual

Alight Solutions LLC

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

G2 Senior Systems Administrator | Active Top Secret clearance

General Dynamics

Remote

Full-time

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret Public Trust/Other Required: None Job Family: Systems Engineering Job Qualifications: Skills: Microsoft Windows Server, System Administration, Virtual Environments Certifications: None Experience: 6 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Senior Systems Administrator with GDIT. A career in

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

G2 Directory Services Engineer / Senior Systems Administrator | Active Top Secret clearance

General Dynamics

Remote

Full-time

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret Public Trust/Other Required: None Job Family: Systems Engineering Job Qualifications: Skills: Directory Services, System Administration, Technical Support Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Transform technology into an opportunity as a Directory Services Engineer / Senior Systems Administrator

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

SAP NS2 Senior Cloud Engineer/Systems Administrator - Onsite - Chantilly, VA

SAP Americas, Inc.

Herndon, Virginia, USA

Full-time

We help the world run better At SAP, we enable you to bring out your best. Our company culture is focused on collaboration and a shared passion to help the world run better. How? We focus every day on building the foundation for tomorrow and creating a workplace that embraces differences, values flexibility, and is aligned to our purpose-driven and future-focused work. We offer a highly collaborative, caring team environment with a strong focus on learning and development, recognition for your i

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 - 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