- Leidos (Vienna, VA)
- **Description** The National Security Sector at Leidos is seeking a ** Senior System Administrator** to join a dynamic team based in **Tysons Corner, VA** . This ... exciting opportunity allows you to apply your expertise in system administration and software programming while supporting a small team responsible for managing… more
- SimIS Inc. (Dahlgren, VA)
- … system administration , and information assurance support for combat system interface simulation, test, analysis, and training systems associated with ... + Experience in implementing and maintaining complex computer system network administration activities. + Experience in Microsoft Windows computer operating … more
- GovCIO (Fairfax, VA)
- **Overview** GovCIO is currently hiring for a Senior Systems Engineer with an active Secret clearance to provide administration and tier 3 operational ... USD $165,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6349/ senior - systems -engineer/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-VA-Fairfax_ **ID** _2025-6349_ **Category** _IT… more
- ManTech (Chantilly, VA)
- …including documentation required for A&A IAW ICD 503. + Experience with Windows administration , Active Directory, administrative scripting languages, and ... **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Engineer** to join...and experience with virtual infrastructure technologies, all components of Windows and Linux system infrastructure, Local Area… more
- General Dynamics Information Technology (Quantico, VA)
- …be TS/SCI eligible) + **Required Experience:** + 5+ years of experience with Systems Administration , general computer system , network administration , ... Infrastructure and Operations **Skills:** Mobile Device Management (MDM),Next-Generation Network (NGN), System Administration **Certifications:** Security+ CE - CompTIA… more
- US Coast Guard (Chesapeake, VA)
- …standards, optimizing checkout processes, and managing network connectivity for POS and inventory systems . The Sr . Retail IT Specialist designs and manages the ... expertise in architecting, configuring, implementing, administering, and troubleshooting distributed Windows servers and desktop operating systems (Win11), along… more
- Infinity Systems Engineering (Alexandria, VA)
- …Juniper switch configuration (Cisco experience is a plus) + Proficient in Linux and Windows system administration + Active CompTIA Security+ CE or equivalent ... + Configure, manage, secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms (updates, security,… more
- Noblis (Chantilly, VA)
- Responsibilities As a Senior Systems Engineer, you will plan, design, and implement additions and changes to network hardware, infrastructure server ... and security + Cloud platforms (AWS GovCloud, SC2S, C2S) + Linux and Windows operating systems + Windows Active Directory + Network hardware… more
- M. C. Dean (Vienna, VA)
- …and other components of our cybersecurity infrastructure. As part of the team, the ** Senior Systems Engineer** 's responsibilities will include (but will not be ... characteristics; testing and evaluation of technology components; + **Producing detailed system design** , including network and systems infrastructure,… more
- SimIS Inc. (Dahlgren, VA)
- …the listed position and is contingent upon award. Job Description: SimIS, Inc. seeks a Senior Systems Engineer to lead systems engineering activities for a ... systems and training environments Experience Required: + Eight (8) years of systems administration experience with three (3) years in leadership roles +… more