Systems Administrator / Senior IT Support Specialist

Job Description

Position Summary: As a Systems Administrator and Senior IT Support Specialist, you will manage, operate, sustain, and provide advanced support for Sigmatech's IT infrastructure. This dual-focus role serves as the primary technical escalation point for complex helpdesk tickets while actively administering enterprise networks, cloud services, and security compliance. In addition to internal infrastructure duties, you will provide critical technical, integration, and operational support for the Kuwait Security Assistance Liaison Office (KSALO) mission, supporting on-site and remote personnel out of our Crystal City location.

Specific Duties

• Advanced Escalation Support: Serve as the senior technical escalation point for user support, managing requests through the IT Service Management (ITSM) ticketing system to isolate faults, make repairs, and restore service.
• Systems Administration: Administer and maintain Microsoft Active Directory, Microsoft Entra ID, Windows Server, and Microsoft 365 services (including Exchange, SharePoint, and Teams).
• Network & Infrastructure Support: Support and troubleshoot office networking equipment, including firewalls, switches, wireless access points, and teleconference systems. Assist in managing and monitoring enterprise backup solutions.
• Endpoint & Security Management: Manage mobile devices and endpoints using Microsoft Intune. Assist in monitoring and enforcing Data Loss Prevention (DLP) policies and compliance standards to safeguard proprietary data and Controlled Unclassified Information (CUI).
• KSALO Mission Customer Support: Provide dedicated, high-level technical support to on-site and remote KSALO personnel, including international partners and contractor support staff. Resolve complex account issues and integrate systems as directed by mission leadership.
• Hardware & Software Provisioning: Analyze, recommend, and execute the ordering and purchasing