Maintenance Assistant

Job Description California applicants: Please click here to review the Costco Applicant Privacy Notice. The jobs listed are examples of the typical kinds of positions that Costco may hire for when openings exist. The listing does not mean that any positions are currently open or available at Costco.

Position Summary

Provides janitorial services and general maintenance of warehouse and grounds. Provides a high level of member service.. Job Duties Cleans warehouse floors, offices, break room, and restrooms by operating self-propelled floor scrubbing machinery, and by sweeping, mopping, spraying, and wiping. Follows departmental procedures and standards for cleanliness and performance of duties.

Restocks supplies. Paints, replaces bulbs, maintains equipment, and performs routine repairs throughout the warehouse. Assists in building displays and fixtures. Maintains grounds outside the warehouse including blowing leaves, picking up litter, roof checks, pressure washing, and building maintenance. Participates in snow and ice removal.

Follows safety and security procedures, such as tagging and locking off power access when working on electrical equipment or contracting out electrical work, wearing safety goggles when using compactor and baler, product disposal. Responds quickly to clean up spills. Empties trash from designated areas throughout the warehouse.

Operates garbage compactor and cardboard baler. Checks daily schedule for assigned routine tasks and maintenance repair jobs. Drives personal vehicle to purchase supplies and parts needed for projects. Ensures proper cleanup and disposal of hazardous materials. Ability to operate vehicles, equipment or machinery. Assists with department duties as necessary.

Assists in other departments of the warehouse as necessary. For additional information about pay ranges, click here. We offer a comprehensive package of benefits including paid time off, health benefits - medical/dental/vision/hearing aid/pharmacy/behavioral health/employee assistance, health care reimbursement account, dependent care assistance plan, short-term disability and long-term disability insurance, AD&D insurance, life insurance, 401(k), stock purchase plan to eligible employees.

Apart from any religious or disability considerations, open availability is needed to meet the needs of the business. If hired, you will be required to provide proof of authorization to work in the United States. Job Description Posting Updated: July 2026 Job Code: 0507