A business developer is an executive or high-level sales rep whose primary goal is to help their company or clients increase revenue. In this role, you develop strategies to attract new customers and engage existing ones. You may work through a development agency or be retained in-house. Regardless of where you work, your goals are to determine customer choices, add value to the company, and improve consumer engagement. You work closely with the marketing and advertising departments as well as product design if your job is in the manufacturing industry. Business developers work in business-to-business, business-to-customer, and non-profit sectors.