To thrive as a Costco Maintenance worker, you need basic mechanical and electrical repair skills, a high school diploma or equivalent, and physical stamina. Familiarity with tools like power drills, floor scrubbers, and HVAC or refrigeration systems is often required, along with relevant safety certifications such as OSHA training. Strong attention to detail, reliability, and effective communication help team members excel. These abilities ensure that Costco facilities remain clean, safe, and operational for employees and customers.