It Sounds so Simple
What Do You Call The Role?
Sales Consultant (SC), Sales Engineer, Solution Engineer (SE), Customer Solution Advisor, PreSales...
Whatever you call the role, its the hugely important technical sales role that can establish the rapport and credibility, build the trust, prove the value and deliver the insights to take complex services and solution sales over the winning line, into success, retention and expansion.
If you want to dive into the basics of the PreSales / SE role then I'd totally recommend this one hour beginners LinkedIn Learning course 'Technical Sales: The Role of the Sales Engineer' by the brilliant John Care. You may need to have a LinkedIn Premium account (or find someone who has one) to access this course.