System administration jobs in District of Columbia

Hybrid in Merrifield, Virginia

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30+d ago

Senior System Engineer, Linux/Windows Direct Hire First 6 months on-site, Fairfax, VA then hybrid 2 days a week on-site thereafter Salary: $120,000 to $125,000 annually, plus benefits Federal End-Client: US Citizenship required, eligible for Public Trust clearance System One IT is staffing a direct hire opening for a Linux/Windows Systems Engineer with a respected systems integrator, supporting a federal end customer in Fairfax, VA. This is an on-site position for the first 6 months, with 2 da

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Full-time

$125000

System Administrator

Hybrid in Hyattsville, Maryland

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11d ago

Job Title:- System Administrator Location:-Hyattsville, MD(Onsite) Duration:- Long Term Contract Job description: Acquires, installs, configures, operates, and maintains computer hardware, software, and related infrastructure. Duties/Responsibilities: Ability to learn HASTUS to provide ongoing support to the Bus and Rail Scheduling Operations teams. Review security scan results and develop steps to mitigate vulnerabilities at the server and application levels. Responsible for effective pro

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Third Party, Contract

Depends on Experience

Sr System Administrator

Hybrid in Reston, Virginia

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13d ago

TO BE CONSIDERED, CANDIDATES MUST BE US CITs, MUST BE LOCATED IN THE DC/MD/VA METRO AREA AND BE WILLING TO WORK A HYRBID SCHEDULE (2-3 DAYS) IN RESTON, VA Formed in 2011, Inadev is focused on its founding principle to build innovative customer-centric solutions incredibly fast, secure, and at scale. We deliver world-class digital experiences to some of the largest federal agencies and commercial companies. Our technical expertise and innovations are comprised of codeless automation, identity int

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Full-time

$120,000 - $160,000

IT Director

Hybrid in Annapolis, Maryland

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30+d ago

POSITION PURPOSE This unique role combines strategic leadership with hands-on technical expertise to guide our IT department in supporting the clients mission and goals. The ideal candidate will be a proactive, innovative thinker with a passion for technology and a commitment to delivering exceptional service to our patients and staff. ESSENTIAL FUNCTIONS AND BASIC DUTIES 1. Leadership and Strategy: Develop and execute IT strategies that align with the client's overall objectives. Provide vision

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Full-time

170000 - 200000

Telecom Lead Technician (VOIP / Call Manager Admin)

Washington, District of Columbia

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Today

Evolver is seeking a Telecom Lead Technician to provide advanced telecom support and serve as the technical lead for VOIP operations. This role includes system administration responsibilities, escalation support, mentoring/training technicians, and coordination with network and customer stakeholders to maintain reliable voice services. This position is performed on-site in Washington, DC (near Smithsonian Metro) during normal operating hours (Monday-Friday, 8:00 a.m.-4:30 p.m.), with occasional

Full-time

Systems Engineer

Suitland-Silver Hill, Maryland

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Today

Leidos is seeking a Systems Engineer to support a Navy customer in Suitland, MD transitioning to a new enterprise Production and Dissemination system. This role focuses on system operations, data migration, template testing, and user support across multiple security domains. This posting is for multiple opportunities ranging in years of experience. Level of opportunity, including compensation, will be matched to a candidate's experience. Key Responsibilities Provide user support and troubleshoo

Full-time

USD 87,100.00 - 157,450.00 per year

Senior Systems Administrator (Linux/Windows) - Top Secret Clearance w/SCI eligibility required

Arlington, Virginia

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Today

Overview At AMERICAN SYSTEMS, your technical expertise directly supports national security and mission-critical systems. As an employee-owned federal government contractor, we deliver trusted solutions in support of the nation's highest priorities. We are seeking a Senior Systems Administrator to support a Special Access Program, operating in highly secure, complex environments where precision and reliability are essential. This role focuses on owning and optimizing enterprise Windows and Linu

Full-time

USD 108,100.00 per year

Lead Operating Engineer

McLean, Virginia

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Today

Job Title Lead Operating Engineer Job Description Summary Responsible to ensure the proper efficient operations and maintenance of the mechanical electrical and plumbing systems for the assigned facility. The performance of all necessary maintenance and operational tasks are developed to assure maximum life and reliability of all mechanical/ electrical/plumbing systems. Typically, this position does not have a Chief Engineer on-site at the building and is sometimes the solo engineer at the buil

Full-time

USD 38.78 - 45.62 per hour

macOS Systems Engineer

Arlington, Virginia

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Today

SBG Technology Solutions, Inc. (SBG), a DSS, Inc. company, offers IT Governance, Systems Engineering, Enterprise Modernization, Artificial Intelligence, and Cyber Security innovation to federal and commercial clients nationwide. Overview: SBG is hiring a macOS Systems Engineer to support the Cybersecurity and Infrastructure Security Agency (CISA) Enterprise Engineering and Operations Support Services (CEEOSS) contract. CISA plays a vital role in DHS by safeguarding the nation's cyber and physica

Full-time

Systems Administrator Intern

Maryland

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Today

Job Number: R0231980 Systems Administrator Intern The Opportunity: Organize and direct the configuration and operation of information management systems. Provide day-to-day system administration, including system and resource optimization, and user assistance. C ond uct capacity and performance analysis and provide system configuration change and upgrade recommendations. Increase system administrator efficiency and accuracy via the use of automated tools and scripts, develop system administrator

Full-time

USD 52,900.00 - 108,000.00 per year

Linux Systems Administrator

Washington, District of Columbia

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Today

Job Number: R0234152 Linux Systems Administrator The Opportunity: Your 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 U.S. Federal Government? We're looking for a cross domain specialist to help us design, deploy, and maintain Cross Domain Solutions for an enterprise environment. As a Linux System Administrator on our project, you'll constantly look for ways to make the infrastructure bet

Full-time

USD 77,600.00 - 176,000.00 per year

Systems Administrator

Washington, District of Columbia

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Today

MANTECH seeks a motivated, career andcustomer-oriented Systems Administratorto join our team in Washington, DC. This is an onsite position. Responsibilities include, but are not limited to: Install, configure, and support computer systems and peripheral hardware including memory, drives, network cards, media converters, routers, switches, and printers Administer and troubleshoot Windows-based servers and workstations both locally and remotely Perform system tasks such as adding/removing users,

Full-time

ServiceNow Developer

Lorton, Virginia

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Today

Location: Lorton, VA Salary: $150,000.00 USD Annually - $225,000.00 USD Annually Description: Title: Senior ServiceNow Developer Location: Lorton, VA Full Time Job: Yes Salary: 150,000--225, 000 Contact : Brian Merin; ; Modules needed: Currently in ITSM module needs to move to other modules: ITAM ITOM, ITSM backend customer catalogue development. PURPOSE: To architect, develop, implement, integrate, manage, and administer ServiceNow solutions for large enterprise customers in the role

Full-time

USD 150,000.00 - 225,000.00 per year

Security Engineer

Washington, District of Columbia

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Today

Job ID: 2601320 Location: WASHINGTON, DC, US Date Posted: 2026-02-23 Category: Cyber Subcategory: Cybersecurity Ops Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking qualified Security Engineer with expertise in building, managing, and maintaining secure network environments. This role will involve providing day-to-day operational

Full-time

USD 80,001.00 - 120,000.00 per year

Intermediate Classified Systems Administrator

McLean, Virginia

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Today

Why choose between doing meaningful work and having a fulfilling life? At MITRE, you can have both. That's because MITRE people are committed to tackling our nation's toughest challenges-and we're committed to the long-term well-being of our employees. MITRE is different from most technology companies. We are a not-for-profit corporation chartered to work for the public interest, with no commercial conflicts to influence what we do. The R&D centers we operate for the government create lasting im

Full-time

USD 103,600.00 - 129,500.00 per year

Network and Computer Systems Administrator

Washington, District of Columbia

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Today

MANTECH seeks a motivated, career and customer-oriented Network and Computer Systems Administrator to join our team at Joint Base Anacostia-Bolling, DC. This is an onsite position. You will serve as the primary technical authority for the installation and configuration of enterprise Windows Server and Oracle Database environments, driving innovation through virtualized network deployment and automation. Responsibilities include but are not limited to: Configure and maintain computer systems with

Full-time

System Administrator - active Top Secret required

Washington, District of Columbia

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Today

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: IT System Administration, System Administration, Systems Administrator Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Advance how our customers operate while you advance your career. Join GDIT as

Full-time

USD 93,662.00 - 126,500.00 per year

Systems Administrator

Maryland

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Today

Job Number: R0234873 Systems Administrator The Opportunity: Are you looking for an opportunity to use your technical expertise in support of cyberspace operations? As a Systems Administrator, you'll have the chance to build your expertise and solve technical problems in a fast-paced and agile environment. We're looking for someone like you to help develop, implement, and maintain customer-focused database solutions in support of our warfighters. As a Systems Administrator on our team, you'll est

Full-time

USD 77,600.00 - 176,000.00 per year

Multi-Cloud and Hybrid Infrastructure Lead

McLean, Virginia

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Today

Job Number: R0231585 Multi-Cloud and Hybrid Infrastructure Lead The Opportunity: As a DevOps engineer, you know how to set up cloud environments and provision computer networking, storage, and virtual networks-ultimately, how to "harness the cloud." We're looking for an experienced DevOps infrastructure engineer like you to support our clients as they modernize their IT infrastructures and meet their most challenging missions. As a DevOps infrastructure engineer at Booz Allen, you'll work clos

Full-time

USD 77,600.00 - 176,000.00 per year

Senior Network Administrator

Odenton, Maryland

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Today

The Defense IT group 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 and implement

Full-time

USD 92,300.00 - 166,850.00 per year

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System administration jobs in Washington, DC, USA