333 system support jobs at 170 companies in Winchester, VA
1mo
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System Administrator
Herndon, Virginia, United States
OnsiteFull Time
Active TS/SCI with Full-Scope Polygraph required. Provide Tier 2 systems administration and help-desk support in a 24x7 environment, troubleshoot hardware/software, maintain SOPs and monitor messaging systems.
2w
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System Administrator
Herndon, Virginia, United States
OnsiteFull Time
Manage cloud R&D environments, perform system administration/O&M, backups, patching, security hardening, firewall/SSL/x509/PKI implementation, support deployments; US citizenship required.
Linux, Windows, SSL, x509, PKI, firewalls, middleware, Cloud
1mo
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Lead System Engineer (Government)
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOETS/SCI with poly required. Minimum 5 years systems engineering experience with Linux/Windows, networking, databases, scripting, cybersecurity baselines (CIS/STIG), and enterprise system lifecycle support.
Red Hat Enterprise Linux, Rocky, Debian, Windows, SSH, SFTP, SCP, HTTPS, DNS, SNMP, Oracle, MySQL, PostGres, CIS, STIG, Bash, Python, Perl, Ansible, Puppet, Splunk, VMWare/vSphere
2mo
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System Technician I
Reston, Virginia, United States
$47k-$54k/yr OnsiteFull Time
1+ YOESystem Technician role providing Tier 1 IT support, hardware/software troubleshooting, incident management, and in-office collaboration.
Ticketing Systems, Windows, Microsoft Office, POS Systems, VOIP Phones, Printers, Networking Equipment, Firewalls, Switches, Access Points
1mo
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RMS System Manager
Manassas, Virginia, United States
$90k-$100k/yr OnsiteFull Time
3+ YOESupport and manage PremierOne/Records Management Systems, troubleshoot application/hardware/network issues, work with MSSQL/Windows Server, maintain customer relationships, and pass CJIS fingerprint/background checks.
PremierOne RMS, Microsoft Windows Server, Microsoft SQL Server, ODBC, Ops Manager (SCOM), Network Load Balancing (NLB), SQL, XML, .NET, NIBRS, FortiGate, HP, Storage Area Network (SAN)
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MSP System Administrator
Sterling, Virginia, United States
$70k-$95k/yr FieldFull Time
Experienced IT professional to diagnose and resolve complex client issues, recommend and implement technical solutions, provide onsite support across Northern Virginia/DC, document work in PSA, and communicate effectively.
Microsoft Windows Desktop OS, Microsoft Windows Server OS, Apple / Mac Desktop OS, Microsoft Office 365, Google Workspace, iPhone, Android, Multi-factor Authentication, MS Office Suite, TCP/IP, Active Directory, Group Policy, DHCP, DNS, ConnectWise Manage, ConnectWise Automate, IT Glue, Azure, AWS, Hyper-V, VMware, Cisco, Meraki, Sophos, FortiGate, PSA platform
2w
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System User Expert
Beale AFB or Chantilly
HybridFull Time
9+ YOEProvide operator training and support for CMCC/OmniView, create operator materials, capture feedback, support test events and live operations; proficiency with Jira and Confluence; TS/SCI clearance preferred.
OmniView, Jira, Confluence
3d
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Sr Windows System Administrator
Chantilly, Virginia, United States
$180k-$190k/yr OnsiteFull Time
8+ YOE8+ years Windows systems administration experience; architecture and support of Windows infrastructure including AD, Group Policy, DNS, patching, file servers, Exchange; SCCM/MDT; backup/DR; troubleshooting; strong communication; travel up to 20%.
Active Directory, Group Policy, DNS, SCCM, MDT, Exchange Server, PowerShell, Python, Bash, VMware, Hyper-V, KVM, SQL Server, ServiceNow
2w
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System User Expert
Chantilly, Virginia, United States
$80k-$120k/yr OnsiteFull Time
9+ YOE9+ years related experience (or HS+11yrs); experience training operators in C2/C2ISR/Air Battle Management; hands-on OmniView or similar UIs; proficiency with Jira and Confluence; ability to produce operator materials and support live operations and test events.
OmniView, Jira, Confluence
2mo
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IT Support and System Administrator (USA)
Warrenton, Virginia, United States
OnsiteFull Time
Provide end-user IT support, provision workstations, implement/configure hardware and software, troubleshoot ICT/AV issues, manage helpdesk tickets, and apply security practices; expertise in Microsoft Entra ID, Microsoft Intune, PowerShell, and Bash preferred.
Microsoft Entra ID, Microsoft Intune, CMMC, Windows, macOS, Linux, PowerShell, Bash
1w
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Senior Information System Security Officer
Reston, Virginia, United States
OnsiteFull Time
14+ YOEDesign and implement IA/security systems, perform RMF processes, STIG/ACAS artifact loading and mitigation, security assessments, limited penetration testing, and support ATO activities; active Top Secret/SCI with CI polygraph required.
Xacta, ACAS, STIG, Risk Management Framework (RMF)
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Combat System Test and Evaluation (T&E) Support Analyst
Washington or Washington or Sterling or Annapolis or Pascagoula
OnsiteFull Time
6+ YOEABET bachelor's in engineering (or 5+ years military experience), 6+ years relevant Navy/Coast Guard ship construction/repair experience, DoD security clearance (or ability to obtain interim), T&E and C5ISR expertise, Microsoft Office proficiency, ability to travel up to 10%.
Microsoft Office
2w
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Space System Engineer - Level 4
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOEBachelor's in STEM with 5+ years relevant experience supporting satellite/payload design, integration, testing, operations, acquisition processes, and mission analyses; TS/SCI and polygraph required; proficiency with MATLAB, Python, STK, LabVIEW, DOORS, Cameo.
MATLAB, Python, STK, LabVIEW, DOORS, Cameo
1mo
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IT Systems & Support Engineer
Reston, Virginia, United States
$70k-$80k/yr HybridFull Time
3+ YOE3+ years IT support/systems experience; hands-on AWS and Azure management; Office 365/SharePoint administration; networking and security knowledge; strong problem-solving and user-support skills.
AWS, EC2, S3, IAM, Azure, Active Directory/Entra ID, Virtual Machines, Office 365, SharePoint, Microsoft Teams, Exchange Online, Windows, macOS, PowerShell, Bash, Python, Microsoft Intune, Jamf, VPN, EDR, TCP/IP, DNS, DHCP, VLAN
3w
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Information System Security Engineer (ISSE)
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOE5+ years ISSE experience supporting enterprise and cloud security, RMF/ICD 503 accreditation, SSP development, risk assessment, and continuous monitoring.
ICD 503 Rev. 4, Risk Management Framework (RMF), System Security Plan (SSP)
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IT Support Specialist
Ashburn, Virginia, United States
OnsiteFull Time
3+ YOEBachelor's degree or equivalent experience; 3–5 years IT support experience; strong knowledge of computer systems, networks, security, troubleshooting, technical writing, and communication skills.
3d
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Technical Support Engineer
Greensboro or Hagerstown
FieldFull Time
6+ YOE6+ years technical support or heavy-duty service experience; expert knowledge of Class 8 truck systems, diagnostics, root-cause analysis, and North American workshop practices.
2d
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Customer Support Specialist (Remote)
New Mexico or Utah or West Jordan or Washington or Centreville or Texas or United States
RemoteFull Time
3+ YOERequires 3 years of related SaaS support experience or 1 year supporting Neumo products, plus a bachelor's degree or equivalent experience; troubleshooting, communication, ticketing, and system administration skills required.
Anti-Virus Software, Microsoft Active Directory, Microsoft Domain Name Services, Microsoft Dynamic Host Configuration Protocol, Microsoft Windows, Network Printers, Microsoft Office Suite, Salesforce, Zendesk, Customer Relationship Management (CRM)
3w
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Information System Security Engineer (ISSE) (2026-0170)
Chantilly, Virginia, United States
OnsiteFull Time
8+ YOEDesign and embed security controls, conduct technical assessments, support A&A activities, maintain baselines and documentation; TS/SCI with polygraph and bachelor\u0002s degree plus 8 years required.
2w
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Operations Support Technician
Chantilly, Virginia, United States
$124k-$155k/yr OnsiteFull Time
5+ YOE5+ years supporting sensitive client operations, familiarity with policies/systems for sensitive ops, independent and process-oriented, experience creating SOPs, training, and executive communication; active TS/SCI with polygraph required.