This position requires an active DoD Clearance (Top Secret/SCI with a CI Polygraph) Because an active DoD clearance is required, U.S. Citizenship is required Description TEKsystems is looking for a Systems Administrator for a large government integrator near Denver, CO. Job responsibilities will include, but not be limited to, the following: Perform as a Linux System Administrator on large government contracts. Perform administration on VMware technologies (or related) Maintain smooth operation