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Chantilly, Virginia

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Today

Job ID: 2600637 Location: CHANTILLY, VA, US Date Posted: 2026-01-29 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: None Potential for Remote Work: No Description SAIC has an immediate opening for a Senior Systems Administrator to work on a very exciting program in Chantilly. In this role you will perform high-level, day-to-day operational

Full-time

Senior Systems Administrator

Arlington, Virginia

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Today

Overview GovCIO is currently hiring for a Senior Systems Administrator with an active Secret clearance to manage large-scale Windows-based environments, commercial off-the-shelf applications, and government-developed enterprise applications . This position will be located in Arlington, VA, and will be a hybrid position. Responsibilities Works with large-scale Windows-based environments, commercial off-the-shelf applications, and government-developed enterprise applications Provides F5 LTM adm

Full-time

USD 115,000.00 - 135,000.00 per year

Senior Systems Administrator - COMSEC Specialist

Washington, District of Columbia

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Today

MTSI is seeking a Senior Systems Administrator - COMSEC Specialist whose primary function will be to lead/support development, testing and integration of advanced communication systems. This position will be located in the Washington DC area. Your essential job functions will include but may not be limited to: Lead/monitor the design and implement a network architecture to support mission critical needs for the development of advanced systems.Monitor and guide the development of requirements, c

Full-time

Sr Systems Administrator - PLACEMENT

Reston, Virginia

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Today

Job#: 3015532 Job Description: Job DescriptionSr Systems Administrator Location: Reston, Virginia (Onsite) Employment Type: Contract Role Overview We are seeking a Senior Systems Administrator for a long-term contract position. This role involves supporting a key federal client and requires working fully on-site. The position is a backfill on a three-year contract, offering a stable engagement within a critical infrastructure environment. Key Responsibilities Plan, design, and implement infra

Easy Apply

Full-time

USD 65.00 - 85.00 per hour

Senior Systems Administrator

Gaithersburg, Maryland

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Today

Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers' mission to defend against evolving threats around the world. Our team's focus is to ensure our customers have the right tools, technologies, and tactics to keep pace with an ever-evolving security landscape and succeed in their pursuit to protect people and critical assets.

Full-time

USD 92,300.00 - 166,850.00 per year

Systems Administrator

Chantilly, Virginia

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Today

Leidos is seeking an experienced Systems Administrator to join our team in supporting mission-critical IT infrastructure. This role is ideal for a professional with solid systems administration expertise, particularly in pipeline automation and/or VMware environments across Windows and/or Linux platforms. You will work in a collaborative, high-security environment, ensuring the reliability, security, and efficiency of systems that support national security objectives. This position involves hand

Full-time

USD 92,300.00 - 166,850.00 per year

Systems Administrator(Windows)

Lorton, Virginia

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Today

Job Title: System Administrator (Windows) Clearance Required: Public Trust Work Location: Onsite; Lorton, VA Alpha Omega is searching for an experienced Windows Systems Administrator to join one of our long-term Federal projects. The Windows Systems Engineer will be responsible for the administration, automation, and security of the organization's Windows server and virtual infrastructure. This role requires advanced expertise in Microsoft Hyper-V and Windows Server environments, with a strong

Full-time

USD 70,000.00 - 135,000.00 per year

Senior Hybrid Cloud Systems Administrator

Remote or Hazelwood, Missouri

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Today

Senior Hybrid Cloud Systems Administrator Company: The Boeing Company The Boeing Company's Specialized United States Infrastructure organization is currently seeking a Senior Hybrid Cloud Systems Administrator to join the team in Hazelwood, MO. This role is centered on delivering technical leadership and project support for strategic, enterprise-level hybrid cloud hosting environments, primarily catering to initiatives within the Boeing Defense, Space & Security (BDS) business unit. An ideal

Full-time

USD 115,600.00 - 156,400.00 per year

Senior Systems Administrator

Chantilly, Virginia

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Today

Leidos is seeking a System Administrator for a technical development program supporting the Sponsor's Attribute Services within the IDAM/ICAM space.As a System Administrator on this program, you will design, develop, implement, and maintain a Cloud-Native Service architecture that software development teams can leverage to use cloud capabilities. This role works directly with implementation teams to provide technical guidance and implementation priorities related to cloud implementation. This ro

Full-time

USD 116,350.00 - 210,325.00 per year

Senior Systems Administrator

Fort Belvoir, Virginia

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Today

Senior Systems Administrator Ft. Belvoir, VA Join our Talent Network Senior Systems Administrator Ft. Belvoir, VA C-CHR-24-041 TheSenior System Administratorwill provide primary and backup server system administration and information assurance support. Duties and Responsibilities: Provide systems administration support for the Windows operating system and applications and backup support for VMWare virtual environments. Install, configure, maintain, and provide troubleshooting support for all op

Full-time

Sr. Systems Administrator

Fort Belvoir, Virginia

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Today

Sr. Systems Administrator Ft. Belvoir, VA Join our Talent Network Sr. Systems Administrator Ft. Belvoir, VA C-CHR-24-050 TheSenior System Administratorwill provide primary and backup server system administration and information assurance support. Duties and Responsibilities: + + Provide systems administration support for the Windows operating system and applications and backup support for VMWare virtual environments. Install, configure, maintain, and provide troubleshooting support for all oper

Full-time

System Administrator

Oakton, Virginia

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Today

System Administrator Oakton, VA Information Technology Join our Talent Network Are you ready to enhance your skills and build your career in a rapidly evolving business climate? Are you seeking a career where professional development is embedded in your employer's core culture? If so, Chenega Military, Intelligence & Operations Support (MIOS) could be the place for you! Join our team of professionals who support large-scale government operations by leveraging cutting-edge technology and take you

Full-time

Senior Systems Administrator

Remote

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Today

9th Way Insignia is a service-disabled, veteran-owned small business bringing transformative technology to our government customers so they can achieve their missions. Our specialties include cybersecurity, cloud modernization, software development, data analytics, enterprise architecture, enterprise IT, analytics, process automation, and artificial intelligence. Learn more about 9th Way Insignia at Application password: Niner This position is contingent upon contract award. Professional Level

Full-time

USD 78,522.00 - 95,000.00 per year

Sr. Systems Administrator (Hybrid)

Bethesda, Maryland

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Today

Join our team of experts at a leading professional services firm that specializes in providing consulting, technology, and outsourcing solutions to government agencies and public sector organizations. As a Sr. System Administrator, you will play a crucial role in managing and maintaining mission-critical application systems in a hybrid work environment. Sr. System Administrator Bethesda, MD & Remote (Hybrid) - 4 to 5 days onsite for the first 30 to 45 days. 2 days on-site after that. Must curre

Full-time

Senior DevOps/Systems Administrator (Active Top Secret Clearance)

Remote or Huntsville, Alabama

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Today

Please note: This role is contingent upon a contract award. While it is not an immediate opening, we are actively conducting interviews and extending offers in anticipation of the award. ICF is a mission-driven company filled with people who care deeply about improving the lives of others and making the world a better place. Our core values include Embracing Difference; we seek candidates who are passionate about building a culture that encourages, embraces, and hires dimensions of difference. O

Full-time

USD 81,499.00 - 167,644.00 per year

Senior DB2 z/OS Database Administrator / Systems Programmer

Remote

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15d ago

Infinite Solutions Inc, headquartered at Sacramento, California, focuses on global delivery model to meet the needs of its most valued customers. Infinite Solutions Inc provides services in the areas of IT consulting, development, training and mentoring. Core areas of services include Custom application development; web 2.0 rich internet applications, Mainframe and client server applications, telemedicine, application consulting services. Infinite Solutions Inc. is looking for a qualified indivi

Easy Apply

Contract

Depends on Experience

Sr. Systems Administrator

Arlington, Virginia

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Today

Date Posted: 2026-01-26 Country: United States of America Location: US-VA-ARLINGTON-VA1 ~ 2461 S Clark St ~ BLDG 1, Ste 1000 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance Type: DoD Clearance: Top Secret Security Clearance Status: Active and existing security clearance required on day 1 At Raytheon, the foundation of everything we do

Full-time

USD 75,800.00 per year

Senior Systems Administrator

Washington, District of Columbia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux, Microsoft Windows, System Administration Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Senior Systems Administrator Own your opportunity to join our team, bringing professionalism and initiative to a fas

Full-time

USD 96,569.00 - 130,651.00 per year

Senior Systems Administrator (Windows/Linux) - 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

Systems Administrator Senior

Remote

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Today

Type of Requisition: Pipeline Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: BI Full 6C (T4) Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Containerization, Linux, Shell Scripting Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: GDIT has a requirement for an experienced Systems Administrator Senior to join our Scientific Modeling, Applicat

Full-time

USD 96,569.00 - 130,651.00 per year

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