A Usability Engineer enhances product design by ensuring intuitive user experiences. This role is vital for optimizing usability and user satisfaction, directly affecting product success. Responsibilities include conducting user research, usability testing, and data analysis. Required skills encompass UX principles, prototyping, and analytical thinking. Usability Engineers typically work in collaborative environments with designers, developers, and product managers, fostering multidisciplinary teamwork. Career paths may lead to senior UX roles or product management, with growth opportunities in leadership or specialized UX domains.