• Penetration Tester, Senior

    CACI International (Chantilly, VA)
    …functions (SMS, MMS, Voice, data) and cellular system functions * Understanding of Operating Systems ( Windows , MacOS, Linux, Mac OS, Mobile OS, etc.) * ... creative ways to break into a range of customer systems and illustrate to stakeholders what could happen if...Wireshark, Metasploit, Canvas, Kismet, BackTrack etc.) * Proficient in Windows System Administration with basic understanding of… more
    CACI International (10/18/25)
    - Related Jobs
  • Systems Administrator

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    …responsibilities:** * System Maintenance: Install, configure, update, and maintain operating systems , software, servers, and hardware. * Technical Support: ... security of the IT infrastructure. * Performance Optimization: Monitor system performance and optimize systems to ensure...to obtain a TS/SCI with Poly highly desired * Operating Systems : Strong knowledge of Windows more
    CGI Technologies and Solutions, Inc. (10/01/25)
    - Related Jobs
  • System Administrator

    Gromelski & Associates, Inc. (Manassas, VA)
    …+ Performs duties as System Administrator on systems using Linux, Windows , and other operating systems as needed. + Maximizes network performance; ... of security and performance requirements. + Developing and documenting system administration standard operating procedures. **_System Administrator Additional… more
    Gromelski & Associates, Inc. (12/17/25)
    - Related Jobs
  • Cyber Security Implementation Engineer

    CACI International (Springfield, VA)
    …and maintain on-premises and cloud-based cybersecurity infrastructure and applications running on Windows and Linux operating systems + Engineer and ... of cloud infrastructure, security principles, compute, storage, and transport. + Expertise in Windows and Linux server operating systems . + Excellent writing… more
    CACI International (11/14/25)
    - Related Jobs
  • IT Support Engineer I (ONS)

    Amazon (Herndon, VA)
    …Basic Qualifications - High school or equivalent diploma - 2+ years of corporate setting Windows , Mac or Linux Operating systems support experience - 2+ ... Support Engineers have an advanced understanding of IT standards, systems and equipment deployed throughout Amazon. They can work...hardware - Assist with activities to triage and escalate system or network outages to reduce downtime - Understand… more
    Amazon (11/07/25)
    - Related Jobs
  • Windows Administrator

    GovCIO (Richmond, VA)
    …+ Experience in Computer Science or IT. + 5+ years' experience as a Windows Systems Administrator or Engineerwith 3+ years' experience in automating assigned ... a Windows Administrator, tocreate and maintain team technical instructions, operating procedures and policies as needed.This position will be located in Radford,… more
    GovCIO (09/24/25)
    - Related Jobs
  • Principal Systems Engineer

    Northrop Grumman (Chantilly, VA)
    …generator, oscilloscope, multi-meter, spectrum analyzers, etc. + Knowledge and familiarity with Windows and Linux Operating Systems , specifically the ability ... to execute in command line and rapidly navigate both operating systems + Experience with requirements management **Preferred Qualifications for both levels:** +… more
    Northrop Grumman (12/19/25)
    - Related Jobs
  • Systems Engineer

    TekSynap (VA)
    …deployment, security, and administration of commercial cloud provider (CCP) solutions, including Windows and RHEL operating systems . + Manage enterprise ... and cloud hosting solutions. + Ensure cloud hosting environments, hosted resources, operating systems , software systems , and related procedures comply… more
    TekSynap (11/15/25)
    - Related Jobs
  • Senior IT Systems Administrator

    ManTech (Chantilly, VA)
    …or equivalent) or ability to obtain one within 180 days. + Experience with Windows and Linux operating systems . + Experience providing help-desk end-user ... + Experience and ability to perform software installations and upgrades to operating systems and layered software packages. + Experience with Intelligence… more
    ManTech (12/03/25)
    - Related Jobs
  • System Operations/Administrator

    Sciolex Corporation (Chantilly, VA)
    …or in a similar IT support role. Compliant with DoD Directive 8570 Knowledge of Windows and Linux operating systems . CompTIA Security+ or ability to obtain ... Deploy software updates, patches, and security fixes to desktop systems . Conduct regular system backups and data recovery operations. Maintain and update asset… more
    Sciolex Corporation (10/14/25)
    - Related Jobs