C3EL is seeking a Senior IT Support Specialist to support the mission in Washington, DC. This professional will specialize in troubleshooting of complex and advanced end-user issues with hardware and software in a diverse MS Windows environment. They will provide Tier 2 and Tier 3 deskside end user support including imaging, deployment, asset management, and Windows 11 with strong user interaction skills. Need to be able to work independently and as part of a team. Diagnose and troubleshoot Apple (MAC) computer and iOS hardware and software. Perform repairs on Apple computer and iOS hardware and software. Understanding of the MAC OS Imaging process using JAMF preferred but not required. May be assigned to assist in leading small projects and team efforts. Skills should include hardware and software diagnostics, mobile device deployment, recovery and troubleshooting Perform IMAC procedures and lifecycle refresh activities. Familiarity with Remedy and Service Now a plus; provide updates in ITSM system to document problem resolution progress and meet SLAs. Experience supporting Active Directory, MS Office Suite, Google Workspace for Enterprise, Bomgar, VPN, SCCM, VTC, Zoom needed. Escalates complex problems to upper-level deskside engineers. Must have a broad base of support and diagnostic knowledge and be fluent in multiple IT disciplines such as computing, networking, integration, and domain administration.