**MANTECH** seeks a motivated, career and customer-oriented **System Administrator** to join our team in **Columbia, Maryland.**

**Responsibilities include but are not limited to:**

+ Provide Tier 2 and Tier 3 problem identification, diagnosis and resolution.
+ Manage the daily activities of configuration and operation of IT systems.
+ Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all the client/server/storage/network devices, mobile devices, etc.
+ Provide support for the escalation and communication of status to agency management and internal customers.
+ Optimize system operations and resource utilization, and perform system capacity analysis and planning.
+ Provide support for the dispatch system and hardware problems and remains involved in the resolution process.
+ Configure and manage Linux and Windows (or other applicable) operating systems, install/loads operating system software, tr...