a field technician who assists surveyors in conducting surveys by operating and maintaining survey instruments like total stations and GPS equipment. They are responsible for setting up, operating, and maintaining various surveying instruments, collecting and recording data, and ensuring the equipment is in good working order. 

a high school diploma or equivalent, some technical training in surveying, and experience with surveying instruments. A minimum of 2 years of experience in land surveying and operating surveying instruments is often a requirement. Specific requirements may vary based on the job role and company, but generally, an Instrument Man assists surveyors in conducting surveys, operates surveying instruments, and ensures their proper maintenance and safekeeping.