Hello, I am new to Wiki-editing, so please point out my faults gently. 

 The Sales Engineer article presents the work of a sales engineer in only one sphere. I know this because it has been my occupation for 3 decades. The focus of the article is on sales which have an IT connection, this ignores the sales of the many products and projects of other types. For example, I sold epoxy resins and composite materials; to do so required both considerable technical knowledge and sales ability. My job title was Sales Engineer. I suggest broadening the article to include such examples.