- Sales & Project Engineer for Industrial Pipeline...air, Gas, Fire, Lube & Water. - as a Sales Engineer You Will Close New Sales Opportunities By Creating Competitive High-quality Proposals and also Take Part in Tendering and Bidding Process. - Sales Engineer Key Role & Responsibilities. - as a Sales Engineer You Will Close New Sales Opportunities By Creating Competitive High-quality Proposals and also Take Part In. - Coordinating with Clients, Architects, Vendors to Get Complete Details for the Project. - Preparation of the Detail Boq as per the Drawings.