As a proposal manager, your primary responsibilities involve preparing company proposals and working to ensure you meet goals on time. Your duties require you to collaborate with marketing, operations, business development, and other departments to review information and assess the most efficient and effective plan. You write a draft, prepare a presentation, and bring your recommendations to clients. You manage the request for proposal (RFP) from start to finish and assist along the way. You maintain the resource materials, check that you are following proper procedures and standards, and communicate with outside vendors as needed.