Estimator
Reviews and corrects the manufacturing cost calculation, adjusts the assumptions and sees what the calculation is based on.
Manufacturing engineer / work preparation
Reviews the proposed manufacturing approach, machine assumptions and technical inputs before they move further through the process.
Sales / account management
Works from the reviewed manufacturing cost and technical assumptions to decide margin, commercial terms and the quotation that goes to the customer.
Director / operations manager
Sees how the quotation process is performing: throughput, response times, and where estimating capacity or technical review is slowing things down.