Senior Systems Administrator

5 days ago


Chantilly, Virginia, United States Cornerstone Defense Full time
Job Summary:
Cornerstone Defense is seeking a highly skilled Senior Systems Administrator to support our mission critical infrastructure. The ideal candidate will have a strong background in Windows and/or Linux Server Operating Systems, as well as experience with infrastructure re-architecture support and enterprise security assessment.

Responsibilities:
Provide on-site, remote, phone, or email support for systems and networks.
Analyze existing systems and networks to identify areas for improvement and implement proactive recommendations.
Develop solutions to drive change and create efficiencies.

Requirements:
Active TS/SCI with Polygraph
8 years of technical experience with a bachelor's degree in an IT field; 5 years with a Master's degree, and 3 years with a PhD Degree
Experience with Windows and/or Linux Server Operating Systems
Experience with Infrastructure Re-Architecture Support
Experience with Enterprise Security Assessment Support and A&A accreditation

Preferred Qualifications:
CCNA Certification
Experience with Juniper Firewalls
Knowledge of Server Operating System MS 2019
Knowledge of Power Shell and Basic commands
Knowledge of MS patching process using WSUS
Knowledge of Active Directory
Knowledge of RMF and A&A accreditation process

  • Chantilly, Virginia, United States NewGen Technologies (Maryland) Full time

    Job Title: Senior System AdministratorNewGen Technologies is seeking a highly skilled Senior System Administrator to support the Intelligence Community in providing technical support for the customer's system test and integration lab, and customer production environment.The ideal candidate will have a strong background in system administration, with...


  • Chantilly, Virginia, United States Information Management Group Full time

    Job Title: Senior System AdministratorInformation Management Group (IMG) is seeking a highly skilled Senior System Administrator to support the Intelligence Community / National Security in providing technical support for the customer's system test and integration lab, and customer production environment.The ideal candidate will have a strong background in...


  • Chantilly, Virginia, United States Systems Planning and Analysis, Inc Full time

    Job Title: Senior Administrative AssistantSystems Planning and Analysis, Inc. (SPA) is seeking a highly skilled and experienced Senior Administrative Assistant to join our Rushmore FOS team supporting the Mission Integration Directorate Front Office Group (MID/FOG).Job Summary:The successful candidate will provide executive administrative support to the...


  • Chantilly, Virginia, United States Systems Planning and Analysis, Inc Full time

    Job Title: Senior Administrative Support SpecialistSystems Planning and Analysis, Inc. (SPA) is seeking a highly skilled and experienced Senior Administrative Support Specialist to join our Rushmore FOS team supporting the Mission Integration Directorate Front Office Group (MID/FOG).Job Summary:The successful candidate will provide executive administrative...


  • Chantilly, Virginia, United States The Metamorphosis Group, Inc. Full time

    Job SummaryThe Metamorphosis Group, Inc. is seeking a highly skilled Senior Systems Administrator to join our team. As a key member of our IT department, you will be responsible for designing, managing, and maintaining a multi-level processing and storage system that holds unique, highly classified data.Key ResponsibilitiesDesign and implement network,...


  • Chantilly, Virginia, United States Leidos Full time

    Job Title: Senior Systems AdministratorLeidos is seeking a highly skilled Senior Systems Administrator to join our team. As a key member of our IT department, you will be responsible for the full life cycle management of our Windows Client / Server Environment.This position requires excellent communication skills, both verbal and written, as well as the...


  • Chantilly, Virginia, United States A&M Technologies, Inc. Full time

    Job SummaryA&M Technologies, Inc. is seeking a highly skilled Senior Systems Administrator to support the Intelligence Community in providing technical support for the customer's system test and integration lab, and customer production environment.The successful candidate will provide hand-on support for the IT infrastructure and technical assistance and...


  • Chantilly, Virginia, United States DANE LLC Full time

    Job Title: Senior System AdministratorWe are seeking a highly skilled Senior System Administrator to join our team at DANE LLC. As a key member of our IT department, you will be responsible for maintaining the established standard operating environment (SOE) for desktops and remote devices, deploying patches, and more.Responsibilities:Support Microsoft...


  • Chantilly, Virginia, United States Systems Planning and Analysis, Inc Full time

    Job Title: Senior Administrative Support SpecialistSystems Planning and Analysis, Inc. (SPA) is seeking a highly motivated and customer-oriented Senior Administrative Support Specialist to join our Rushmore FOS team supporting the Mission Integration Directorate Front Office Group (MID/FOG).Responsibilities:Provide executive administrative support to the...


  • Chantilly, Virginia, United States The Metamorphosis Group, Inc. Full time

    The Metamorphosis Group, Inc. is seeking a highly skilled Senior Systems Administrator to join our team. This is a hands-on position that requires near state-of-the-art experience in Windows and Linux systems administration.The ideal candidate will possess the knowledge and skills to design, manage, and maintain a multi-level processing and storage system...


  • Chantilly, Virginia, United States ManTech Full time

    Become an integral part of a diverse team at ManTech, where our employees come first. At ManTech, you will help protect our national security while working on innovative projects that offer opportunities for advancement.ManTech is looking for a motivated, customer-oriented Senior Systems Administrator to join our team in Chantilly, VA.Responsibilities...


  • Chantilly, Virginia, United States ManTech Full time

    Job SummaryManTech is seeking a highly skilled Senior Systems Administrator to join our team in Chantilly, VA. As a key member of our team, you will be responsible for maintaining and troubleshooting Windows servers and workstations, both on-site and remote. Your expertise will also be utilized to perform Windows system administrative support, including...


  • Chantilly, Virginia, United States DanSources Full time

    Job Summary:As a Senior Network and Systems Administrator at DanSources, you will be responsible for the operation, maintenance, and administration of existing network and systems architectures. This includes hardware, software, physical cabling, and IP address management, as well as virtualization environments, servers, authentication services, and...


  • Chantilly, Virginia, United States Peraton Full time

    Job Title: Senior Windows Systems AdministratorJob Summary:Peraton is seeking a highly skilled Senior Windows Systems Administrator to manage and administer Windows resources and infrastructure on a dedicated network within a production environment. As part of our classified Windows-based Operational Support Network team, you will support an exciting program...


  • Chantilly, Virginia, United States Systems Planning and Analysis, Inc Full time

    Job SummarySystems Planning and Analysis, Inc. (SPA) is seeking a highly motivated and experienced Senior Administrative Support Specialist to join our Rushmore FOS team supporting the Mission Integration Directorate Front Office Group (MID/FOG). The ideal candidate will provide executive administrative support to senior leadership, manage complex schedules,...


  • Chantilly, Virginia, United States RCT Systems Full time

    Job SummaryRCT Systems is seeking a highly skilled Senior Systems Infrastructure Specialist to join our dynamic team. As a key member of our team, you will be responsible for designing and implementing core infrastructure solutions using industry best practices.Key Responsibilities:Manage server, storage, and virtualization technologies across multiple...


  • Chantilly, Virginia, United States Finch AI Full time

    Job Summary:Finch AI is seeking a highly skilled Senior Geospatial Systems Administrator to join our team. As a key member of our geospatial systems team, you will be responsible for deploying, optimizing, and maintaining enterprise geospatial systems, including databases, tools, and applications. You will also provide user support and assist in security...


  • Chantilly, Virginia, United States Castalia Systems Full time

    Job Title: Senior Systems EngineerWe are seeking a highly skilled Senior Systems Engineer to join our team at Castalia Systems. As a key member of our ERP Management Division, you will be responsible for providing IT support to our government clients.Job Summary:The successful candidate will serve as a lead for technical discussions with interface partners,...


  • Chantilly, Virginia, United States Leidos Full time

    Job Title: Sr. System AdministratorThe Digital Modernization Sector at Leidos has an opening for a Sr. System Administrator to provide technical support for a system test and integration lab, and production environment.The Sr. System Administrator provides hands-on support for the IT infrastructure and technical assistance and support as needed to on-site...


  • Chantilly, Virginia, United States Apogee Integration Full time

    Job Summary:We are seeking a highly skilled Senior Enterprise Linux Systems Administrator to join our team at Apogee Integration. As a key member of our infrastructure team, you will be responsible for the administration and maintenance of our Enterprise Linux infrastructure.Key Responsibilities:Provide expert support in the administration and maintenance of...