Chubb is seeking a skilled Commercial Lines Underwriter to join its Middle Market Commercial Insurance team in our Portland Branch. This role involves managing a renewal book and generating new business, with a focus on driving profitable growth through collaboration with assigned agents and brokers. The product portfolio includes Package, Property, General Liability, Auto, Worker’s Compensation, Umbrella/Excess, and International programs, featuring both guaranteed cost and Loss Sensitive structures. We are looking for a highly motivated, results-oriented candidate with strong business and underwriting acumen.