Senior Systems Administrator, Systems Support

Manage escalated Tier 3 support issues and deliver expert systems administration across Active Directory, directory services, and backup/restore. Triages tickets at Tier 1–2 levels, creates and documents procedures for software/hardware changes from testing to production, and continuously streamlines support workflows. Partner with team leads on training and policy updates, mentor associate systems administrators, and participate in after-hours on-call while coordinating with vendors to resolve issues.