CareerWall Job Posting: Part-Time USPS Mail Handler Assistant – Costa Mesa CA | Part Time at United States Postal Service. This is a Part Time role in Costa Mesa, CA. Salary: $19 - $21.

Part-Time USPS Mail Handler Assistant – Costa Mesa CA | Part Time

Posted on April 08, 2026

Costa Mesa, CA Part Time $19 - $21

Part-Time Job Highlights – Costa Mesa

Part-Time Job in Costa Mesa: USPS Mail Handler Assistant Hiring Organization: United States Postal Service Worksite: Costa Mesa, CA

Pay: $19-$21/Hour (approx. $24k/Year) Benefits: Flexible scheduling to fit your personal or study commitments. Excellent work-life balance for part-time staff in Costa Mesa.

Position Scope

Apply your your professional skills skills in a flexible part-time role at our Costa Mesa location.

  • This part-time role in Costa Mesa is an excellent opportunity for professionals skilled in relevant skills.
  • Our United States Postal Service part-time team in Costa Mesa, CA is growing.
  • Benefit from working part-time in Costa Mesa, a key hub for the Government And Logistics industry.


Behind the Scenes of the Supply Chain

Before the mail ever reaches a delivery truck, it must be processed at lightning speed in our massive sorting facilities. The Mail Handler Assistant (MHA) is the physically demanding, high-energy engine of the USPS processing plant.

  • The Work: You will load, unload, and move bulk mail and empty equipment. You will physically toss sacks, push heavy wire cages, and operate mechanized sorting equipment.
  • The Environment: Fast-paced, loud, and industrial. This is not a desk job; it is a full-body workout.
  • The Future: MHAs are first in line to become Career Mail Handlers, unlocking federal pensions and lifelong healthcare security.

If you prefer the warehouse floor over driving a route, we need your strength today!