Meanings of metallurgical engineer in английском

This has been worked out by E. J. Janitzky, metallurgical engineer of the Illinois Steel Company, as follows:

The report's author, Yun Chung, a University of California, Berkeley-trained retired Bechtel metallurgical engineer, recommended replacing some rods on the bridge's eastern section.

After attending Michigan Technological University, she worked for nine years as the only female metallurgical engineer at Bendix aircraft; her specialty was failure analysis.

These tables are a revision of those by Sauveur & Boylston, metallurgical engineers, Cambridge, Mass.