Inspects and fills compressed gas cylinders. Reports to Site or Operations Manager/Supervisor.  Interacts with customers, MTG sales, management and other operations personnel. - Inspects and performs pre fill testing on compressed gas cylinder and related equipment and materials. - Fills compressed gas cylinders to industry and Valley specifications. - Complies with all filling procedures, and inspection paperwork and signs of that proper procedure were followed.  This includes: filler calibration logs, regulatory forms, checklists and manifest preparation/verification. - Labels and safely stores cylinders in appropriate storage areas and maintains proper inventory levels. - Report any problems or issues with equipment or materials to supervisor or other designated personnel. - Performs routine maintenance on cylinders, such as basic repair and painting. - Assist in loading cylinders on trucks as time permits. - Assist sales persons and customers on filling orders or other related questions.