To thrive as a Seasonal Costco employee, you need strong customer service skills, the ability to operate point-of-sale systems, and a willingness to perform a variety of physical tasks such as stocking and assisting customers. Familiarity with cash registers, inventory management tools, and basic safety procedures is helpful, though most technical training is provided on the job. Dependability, teamwork, and a positive attitude are key soft skills that set top performers apart. These competencies ensure efficient store operations and a positive shopping experience during Costco's busy seasons.