Job Description. Job Description. QTA Machining, Inc. About Us. QTA Machining is a precision machine shop located in the heart of Buffalo, in close proximity to the I-190. The company currently has a wide array of CNC machines, employs 20 employees, and operates in an ISO-9001:2015 certified quality environment. The work we do varies in size and volume, from small parts (. CNC Machinery consist of Lathes, Mills (4-axis), EDM, OD/ID Grinder (see w...