Machine Operator II (Welder Assistant). Pay Range: $23-24/hour. At 90 days, qualified employees will be assessed for $1/hour pay increase based upon performance. . Shift: M-F 7:00 AM-3:30 PM with occasional overtime as business needs demand. Overview. The primary responsibility of the Machine Operator II (Welder Assistant) is to support the lead welder(s) in various welding, brazing or cutting tasks during welding operations. Culture and Fit. ...