Business owners that have more work than they can handle have to decide to either turn work away by ignoring calls, raising prices, or both. OR they must swallow the bitter-sweet pill of hiring additional help. Now I recommend that business owners hire an office person first. Administration staff, like a secretary, can maximize your time by saving you from spending time on answering calls, handling book keeping and other office chores, thereby allowing you to be on the job producing (i.e. making money).
Sometimes, though you need to hire help in servicing customer needs. You have to hire a wildlife control operator (WCO), a tech. But how do you write up the job description? Well I have written a description and it is available in a new book, Becoming a Wildlife Professional edited by Scott E. Henke and Paul R. Krausman. Baltimore: Johns Hopkins University Press, 2017. This book, as the title suggests, seeks to help undergraduate wildlife biologists think and plan about their career path by describing the options and detailing what skills are necessary to obtain those jobs.
I wrote the section on Nuisance Wildlife Control Operator pp. 88-90. The book is available at https://jhupbooks.press.jhu.edu/content/becoming-wildlife-professional It is a bit pricey at 85 dollars, but prices may be lower at other retailers. But despite the price, you also have to consider the value of your time. Do you really want to write up your own job description?
Stephen M. Vantassel is a specialist in wildlife control. He has published numerous books and articles on the subject. He is available for research, training, seminars, and writing.