David Campbell has over 15 years of experience in various fields including sales, security, solar energy, insurance, and construction. He has a degree in multidisciplinary studies with a focus on business, communication, and sociology. His skills include energy auditing, AutoCAD, sales, leadership, and building rapport with clients. His work history includes positions in furniture sales, security systems, solar energy auditing and installation, insurance sales, transportation, warehouse management, and construction. He provides references from past bosses and clients.