System Administrator Jobs in District of Columbia

41 - 60 of 412 Jobs

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

System Administrator 2Job Title - System Administrator 2

JacobsCompany Name - Jacobs

•

Fort Meade, 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. Amentum is seeking a System Administrator to join our team of passionate individuals in Ft Meade, 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: Provide support to IT systems, including monitoring and problem resolution for all client/server/st

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 implem

System Administrator IJob Title - System Administrator I

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Maryland, USA

Full-time

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 implemen

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 Level 3Job Title - System Administrator Level 3

General DynamicsCompany Name - General Dynamics

•

Annapolis, 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 (

Printer System AdministratorJob Title - Printer System Administrator

SAICCompany Name - SAIC

•

Quantico, Virginia, USA

Full-time

Job ID: 2507612 Location: QUANTICO, VA, US Date Posted: 2025-07-16 Category: Information Technology Subcategory: Technical Svcs Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: TS/SCI Potential for Remote Work: No Description Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities of the

System Administrator 4Job Title - System Administrator 4

Boeing CompanyCompany Name - Boeing Company

•

Herndon, Virginia, USA

Full-time

This posting is for a contract assignment and is not a full-time employment offer with Boeing. Candidates selected for roles will be employed as contract workers through a Boeing approved 3rd party for the duration of the specified project. The Boeing Defense, Space & Security (BDS), Maritime and Intelligence Systems (M&IS) seeks a System Administrator to join our Mission Systems Operations team in Herndon, VA. Our team focuses on delivering complex solutions in some of the most challenging envi

Sr. System Administrator TS/SCI PolyJob Title - Sr. System Administrator TS/SCI Poly

LeidosCompany Name - Leidos

•

Annapolis, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a System 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 vesting,

Windows System AdministratorJob Title - Windows System Administrator

General DynamicsCompany Name - General Dynamics

•

Fort Belvoir, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT) Systems, System Administration, System Security, Technical Support Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Systems Administrator Se

Windows System AdministratorJob Title - Windows System Administrator

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Fort Belvoir, Virginia, USA

Full-time

Windows System AdministratorJob Title - Windows System Administrator

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

•

Fort Belvoir, Virginia, USA

Full-time

System Administrator (SA2) with PolyJob Title - System Administrator (SA2) with Poly

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

•

Annapolis, Maryland, USA

Full-time

Job Description THE WORK This role involves comprehensive technical planning and execution across the full system lifecycle, including system integration, verification and validation, cost and risk analysis, and sustainment. Proficiency or exposure to Linux is a plus as many systems rely on Linux-based environments for development, deployment, and operational support. WHO WE ARE At Lockheed Martin, we're a leading aerospace and defense company that's shaping the future of cyber and intelligen

System Administrator IV - HPCJob Title - System Administrator IV - HPC

LeidosCompany Name - Leidos

•

Annapolis, Maryland, USA

Full-time

The Digital Modernization Sector at Leidos currently has an immediate need for an experienced System Administrator - IV HPC for a new customer on a strategic High-Performance Computing (HPC) program. The Senior System Administrator will need to be a self-starter with excellent analytical and problem-solving skills, flexibility, good judgment, and the ability to work within a team to mature the HPC capabilities of our customer. Primary Responsibilities: Manage essential infrastructure services,

System Administrator IJob Title - System Administrator I

General DynamicsCompany Name - General Dynamics

•

Annapolis, 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: Information Technology (IT), Information Technology (IT) Systems, Operating Systems (OS), Problem Resolution, Troubleshooting Certifications: None Experience: 4 + years of related experience ship Required: Yes Job Description: Syste

System Administrator, SeniorJob Title - System Administrator, Senior

Parsons Services CompanyCompany Name - Parsons Services Company

•

Annapolis, Maryland, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: Parsons is the premier national security and critical infrastructure solutions provi

System Administrator L3Job Title - System Administrator L3

Accenture LLPCompany Name - Accenture LLP

•

Annapolis, Maryland, USA

Full-time

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company and part of global Accenture, to do work that matters in a collaborative

System Administrator 3Job Title - System Administrator 3

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

Restore System Administrator - TS/SCI w/PolyJob Title - Restore System Administrator - TS/SCI w/Poly

General DynamicsCompany Name - General Dynamics

•

Annapolis, 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: Backup and Recovery (Software), Disaster Recovery (DR), Information Technology (IT) Systems Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Restore System Administrator Transform