AeroCareers Job Posting: Maintenance Assistant at Costco Wholesale Corporation. This is a Full-Time role in Commerce, CA, USA, CA. Salary: Negotiable.

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Maintenance Assistant

Posted on December 22, 2025

Commerce, CA, USA, CA Full-Time Negotiable
Costco Wholesale Corporation is a renowned multinational corporation recognized for its leading membership warehouse clubs worldwide. Established with the aim of providing high-quality products at the lowest possible prices, Costco operates a global chain of large-scale warehouse stores that offer a wide variety of merchandise, including groceries, appliances, electronics, clothing, and many other categories. With a strong commitment to operational excellence, sustainability, and customer satisfaction, Costco has grown to become a trusted name in retail, consistently delivering value to its members. Known for creating a positive employee experience, Costco emphasizes a culture of respect, teamwork, and growth opportunities for its workforce. The jobs listed here represent typical roles that Costco may hire for when openings exist but do not guarantee current vacancies. The Janitorial and Maintenance position at Costco is pivotal in maintaining the cleanliness and overall upkeep of the warehouse and surrounding grounds. This role is essential to ensure that the shopping environment remains safe, healthy, and pleasant for both employees and customers. The janitor and maintenance staff engage in various cleaning tasks, repair activities, and preventive maintenance duties. The job involves comprehensive janitorial services that include cleaning floors, restrooms, and common areas, as well as general maintenance tasks to address minor repairs and upkeep. Candidates for this position should expect to be proactive in identifying facility issues and performing routine maintenance to avoid larger problems. In addition to maintaining the visual appearance of the warehouse, the role supports the operational efficiency of Costco by ensuring that physical premises are well-maintained, helping to prevent accidents and equipment downtime. Costco offers competitive compensation and a comprehensive benefits package that includes paid time off, extensive health coverage (medical, dental, vision, hearing aids, pharmacy, behavioral health services, and employee assistance programs), as well as financial security options such as health care reimbursement accounts, dependent care assistance plans, short-term and long-term disability insurance, accidental death and dismemberment insurance, life insurance, 401(k) retirement savings plans, and a stock purchase plan for eligible employees. This role provides an excellent opportunity for individuals seeking to work with a globally recognized company committed to maintaining high standards in safety, cleanliness, and employee well-being. Responsibilities in this role often require physical stamina, teamwork, and a keen attention to detail. Employment in this capacity helps support Costco’s mission to provide a superior shopping experience while fostering a supportive work environment for its staff.
  • high school diploma or equivalent
  • ability to perform physical labor and manual tasks
  • reliable attendance and punctuality
  • ability to work flexible hours including weekends and holidays
  • willingness to adhere to safety protocols
  • valid identification and eligibility to work
  • ability to work as part of a team