Senior Systems Administrator Jobs

61 - 80 of 164 Jobs

Senior Systems AdministratorJob Title - Senior Systems Administrator

Virginia JobsCompany Name - Virginia Jobs

•

Virginia, USA

Full-time

Job Description This Senior Systems Administrator position is responsible for maintaining information technology infrastructure to support Virginia Tech sites in both Alexandria and Arlington. This position maintains systems for client support, security monitoring, and virtualization and will be called upon to modify and/or replace them as needed with input and assistance from other members of the team. Some of the technology and services in use include Windows Active Directory, Microsoft Intun

Enterprise Senior Systems AdministratorJob Title - Enterprise Senior Systems Administrator

General DynamicsCompany Name - General Dynamics

•

Albuquerque, New Mexico, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Top Secret Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Critical Systems, Enterprise Servers, Operating Systems (OS) Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: GDIT seeks a highly motivated and experienced Enterprise Senior Systems Engineer to support the Defense Th

Senior Systems Administrator - TS/SCI with PolygraphJob Title - Senior Systems Administrator - TS/SCI with Polygraph

General DynamicsCompany Name - 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

G2 Senior Systems Administrator | Active Top Secret clearanceJob Title - G2 Senior Systems Administrator | Active Top Secret clearance

General DynamicsCompany Name - 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

Sr. Systems Administrator/Task Lead/ManagerJob Title - Sr. Systems Administrator/Task Lead/Manager

General DynamicsCompany Name - General Dynamics

•

Florida, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI 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, Mentorship, People Management Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: GDIT has an immediate opening for a Senior Systems Administrator/Task Lead/Manager to fi

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

General DynamicsCompany Name - 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 Systems AdministratorJob Title - Senior Systems Administrator

Modern Technology SolutionsCompany Name - Modern Technology Solutions

•

Beavercreek, Ohio, USA

Full-time

Overview Own Your Future. Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Systems Administrator in Beavercreek, OH Why is MTSI known as a Great Place to Work? Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the indu

Senior Systems AdministratorJob Title - Senior Systems Administrator

Tyler Technologies, IncCompany Name - Tyler Technologies, Inc

•

Kansas, USA

Full-time

Description Tyler Technologies is currently looking to hire a Cloud Engineer to work a hybrid schedule at one of several of our key locations. This job requires working closely with our development and operations teams to build automation and tools to streamline our customer migrations. Successful candidates will bring cloud expertise, scripting and IaC skills. Have the ability to think and work independently, as needed. Participate in project development and be responsible for Cloud requiremen

Senior Systems Administrator (Australia) - TS/SCI with PolygraphJob Title - Senior Systems Administrator (Australia) - TS/SCI with Polygraph

General DynamicsCompany Name - General Dynamics

•

Hayward, California, 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: 5 + years of related experience ship Required: Yes Job Description: General Dynamics Information Technology (GDIT) is seeking an IT Engineer with Mi

Senior Systems Administrator - Operations LeadJob Title - Senior Systems Administrator - Operations Lead

Akima, LLCCompany Name - Akima, LLC

•

Albuquerque, New Mexico, USA

Full-time

We are seeking an experienced Senior Systems Administrator - Server Operations Lead to support a mission-critical IT security program within a Federal Government environment. This role is responsible for leading server operations, system administration, and infrastructure management, ensuring the security, availability, and performance of IT systems. The ideal candidate will have expertise in server architecture, virtualization, Active Directory management, and IT security best practices. Additi

Sr Windows Systems AdministratorJob Title - Sr Windows Systems Administrator

RTX CorporationCompany Name - RTX Corporation

•

McKinney, Texas, USA

Full-time

Date Posted: 2025-07-02 Country: United States of America Location: TX190: 2501 West University, McKinney 2501 West University , McKinney, TX, 75070 USA 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: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation

Sr Linux Systems AdministratorJob Title - Sr Linux Systems Administrator

RTX CorporationCompany Name - RTX Corporation

•

McKinney, Texas, USA

Full-time

Time Systems Sr. AdministratorJob Title - Time Systems Sr. Administrator

National GridCompany Name - National Grid

•

Syracuse, New York, USA

Full-time

About us We are dedicated to providing safe and secure energy to homes, communities, and businesses. Our commitment is to support people in their time of need, connecting them to essential energy for daily life. As societal and industry changes accelerate, our expertise uniquely positions us to shape a sustainable energy future. To succeed, we proactively anticipate customer needs, aiming to lower energy delivery costs while developing flexible energy systems for tomorrow. This commitment driv

Sr Windows Systems AdministratorJob Title - Sr Windows Systems Administrator

RTX CorporationCompany Name - RTX Corporation

•

El Segundo, California, USA

Full-time

Date Posted: 2025-07-02 Country: United States of America Location: CA222: 2006 E El Segundo Blvd BldgE04 2006 East El Segundo Boulevard Building E04, El Segundo, CA, 90245 USA 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: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calli

Sr Linux Systems AdministratorJob Title - Sr Linux Systems Administrator

RTX CorporationCompany Name - RTX Corporation

•

El Segundo, California, USA

Full-time

Senior Linux Systems AdministratorJob Title - Senior Linux Systems Administrator

Cornerstone DefenseCompany Name - Cornerstone Defense

•

No location provided

Full-time

Type: Contract Job #3699 Senior Linux Systems Administrator Aurora, CO Active TS/SCI with Poly Compensation Range: $125,000 - $145,000 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 they have supporting the mission. Our Team is pushed every day to use thei

Senior Systems Security AdministratorJob Title - Senior Systems Security Administrator

Johns Hopkins University AppliedPhysicsLaboratoryCompany Name - 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

Sr. Specialist, Systems AdministratorJob Title - Sr. Specialist, Systems Administrator

Harris CorporationCompany Name - Harris Corporation

•

Melbourne, Florida, USA

Full-time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris Technologie

Senior Classified Systems AdministratorJob Title - Senior Classified Systems Administrator

DraperCompany Name - Draper

•

Cambridge, Massachusetts, USA

Full-time

Overview: Draper is an independent, nonprofit research and development company headquartered in Cambridge, MA. The 2,000+ employees of Draper tackle important national challenges with a promise of delivering successful and usable solutions. From military defense and space exploration to biomedical engineering, lives often depend on the solutions we provide. Our multidisciplinary teams of engineers and scientists work in a collaborative environment that inspires the cross-fertilization of ideas

Senior Red Hat Systems AdministratorJob Title - Senior Red Hat Systems Administrator

Harris CorporationCompany Name - Harris Corporation

•

Anaheim, California, USA

Full-time