• Principal System

    RTX Corporation (Springfield, VA)
    …clearance​ **Security Clearance:** TS/SCI with Polygraph + ** Principal ** ** System Administrator ** **-** ** Network Operations Center** **-Springfield, ... responsibility and provide access to tools and resources that enable this ** Principal ** ** System Administrator - Network Operations Center** employee to… more
    RTX Corporation (06/12/25)
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  • Principal Systems

    ManTech (Arlington, VA)
    ManTech seeks a motivated, career and customer-oriented ** Principal Systems Administrator ** to join our team in **Pentagon, VA.** The position is **onsite.** ... skills in areas such as Windows and Linux operating systems , network administration, virtualization, and security +...VCP - VMware Certified Professional, CCNA - Cisco Certified Network Administrator + ITIL Foundations or later… more
    ManTech (05/24/25)
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  • Principal Systems

    Leidos (Chantilly, VA)
    …Solutions Division (MDS) within the Leidos National Security Sector is seeking a skilled Principal Systems Administrator to join a new cyber security program ... and play a key role in supporting government-critical systems . You will be part of a program that...to enhance infrastructure efficiency. + Troubleshoot and resolve complex system and network issues in high-availability environments.… more
    Leidos (03/29/25)
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  • Principal Network Systems

    Saliense Consulting (Arlington, VA)
    …preview of the full benefits package. Saliense is now hiring a Senior Technical Consultant ( Principal Network Systems Engineer) to join our team in support ... be eligible to obtain a Top Secret clearance. The Principal Network Systems Engineer will...impacting the enterprise environment. Responsibilities include: + Manages the ' system of systems ' architecture development, partitioning of… more
    Saliense Consulting (05/03/25)
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  • United States Postal Service (USPS) Incumbent…

    General Dynamics Information Technology (Fairfax, VA)
    …Cisco ISE Engineer + DNS/DHCP Network Engineer + Microsoft Power BI Developer + Principal Unix/Linux Systems Administrator + VPN Network Engineer + ... Compute Architect + Mobile Design & Application Architect + Network Architect + Solutions Architect + Systems ...+ IT Administrators + IT Administrative Analyst + IT System Administrator + IT Engineers + Mechanical… more
    General Dynamics Information Technology (06/03/25)
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  • Principal /Sr. Principal

    Northrop Grumman (Stafford, VA)
    …process for multiple networks + Ancillary duties may include setting up administrator and service accounts, maintaining system documentation, tuning system ... design, development, monitoring and testing methodologies + Candidate requires strong system Windows & Server Administrator skills to support the smooth… more
    Northrop Grumman (06/05/25)
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  • Principal System Architect

    ManTech (Chantilly, VA)
    ManTech seeks a motivated, career and customer-oriented ** Principal System Architect** to join our team in **Chantilly, VA.** The position is **onsite.** The ... Professional, VMware VCP - VMware Certified Professional, CCNA - Cisco Certified Network Administrator + ITIL Foundations or later certification highly desired… more
    ManTech (05/24/25)
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  • IT Systems Integration Principal

    SAIC (Chantilly, VA)
    …preferably at the associates level or an equivalent + Prior experience as a system administrator + Solid understanding and familiarity with Windows and Linux ... **Description** SAIC is seeking a Systems Integration Engineer to join our team in...to create and deploy integrated hardware and software IT system architecture. Key duties/responsibilities include, but are not limited… more
    SAIC (06/13/25)
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  • Senior Principal Azure Cloud Engineer

    ManTech (Chantilly, VA)
    ManTech seeks a motivated, career and customer-oriented **Senior Principal Azure** **Cloud Engineer** to join our team in Chantilly, VA. **Responsibilities include ... scripting languages such as PowerShell, Python, or Azure CLI. + Help with network security groups (NSGs) and application gateways. + Work with Azure services… more
    ManTech (04/01/25)
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  • Principal DevOps Engineer

    Leidos (Reston, VA)
    …talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence ... National Security!** **Job Summary** This PrincipalDevOps Engineer role provides mission critical system support to our customer. You will closely work with the… more
    Leidos (04/24/25)
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