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Line Assistant Jobs in California (NOW HIRING)

Costco Wholesale Corporation

Any Position

Santa Cruz, CA · On-site

$16.25 - $20.25/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

Tracy, CA · On-site

$14.75 - $18.50/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

Santa Clarita, CA · On-site

$14.75 - $18.50/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

Hanford, CA · On-site

$13.75 - $17.25/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

Hayward, CA · On-site

$16 - $20/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

Livermore, CA · On-site

$15.50 - $19.50/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

Rancho Cordova, CA · On-site

$14.50 - $18/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

San Jose, CA · On-site

$16.50 - $20.75/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

Tustin, CA · On-site

$15 - $18.75/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

Fremont, CA · On-site

$16.50 - $20.75/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

San Diego, CA · On-site

$15 - $18.75/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Amirian Management Company

Cook

Hesperia, CA

$20/hr

Heat inserts of prepared products for the front line. * Assist in filling and packaging orders. * Monitor and correct cleanliness of the restaurant. Cooks are responsible for exhibiting a friendly ...

Costco Wholesale Corporation

Any Position

Mountain View, CA · On-site

$16.50 - $20.75/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Amirian Management Company

Cook

Anaheim, CA

$20/hr

Heat inserts of prepared products for the front line. * Assist in filling and packaging orders. * Monitor and correct cleanliness of the restaurant. Cooks are responsible for exhibiting a friendly ...

Amirian Management Company

Cook

Lancaster, CA

$20/hr

Heat inserts of prepared products for the front line. * Assist in filling and packaging orders. * Monitor and correct cleanliness of the restaurant. Cooks are responsible for exhibiting a friendly ...

Costco Wholesale Corporation

Any Position

Alhambra, CA · On-site

$14.50 - $18.25/hr

May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers. * May assist members with self checkouts through monitoring the registers for errors and ...

Costco Wholesale Corporation

Any Position

Ontario, CA · On-site

... Line Assistant. 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 ...

Amirian Management Company

Cook

Colton, CA

$20/hr

Heat inserts of prepared products for the front line. * Assist in filling and packaging orders. * Monitor and correct cleanliness of the restaurant. Cooks are responsible for exhibiting a friendly ...

Amirian Management Company

Cook

Pasadena, CA

$20/hr

Heat inserts of prepared products for the front line. * Assist in filling and packaging orders. * Monitor and correct cleanliness of the restaurant. Cooks are responsible for exhibiting a friendly ...

Amirian Management Company

Cook

Hesperia, CA

$20/hr

Heat inserts of prepared products for the front line. * Assist in filling and packaging orders. * Monitor and correct cleanliness of the restaurant. Cooks are responsible for exhibiting a friendly ...

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Line Assistant information

Is 25 too old to become a lineman?

Line assistants and linemen typically start training in their late teens or early twenties, but 25 is not too old to begin a career in this field. Physical fitness, technical skills, and proper training or certifications are important, and many employers value experience and dedication regardless of age.

How to become a line worker?

To become a line worker, typically you need a high school diploma or equivalent and relevant training or apprenticeships in manufacturing or production environments. On-the-job training is common, and skills in operating machinery, attention to safety, and physical stamina are important. Some positions may require certifications in safety or equipment operation.

Is being a powerline technician worth it?

A powerline technician, including roles like a line assistant, performs high-voltage electrical work often outdoors and requires safety training and certifications. The job offers good pay, job stability, and opportunities for advancement, but it involves physical labor and exposure to hazards. Overall, it can be a rewarding career for those interested in electrical infrastructure and safety procedures.

What are Line Assistants?

Line Assistants are support personnel who help with the smooth operation of production or assembly lines in manufacturing, food processing, or similar industries. Their responsibilities typically include preparing materials, monitoring equipment, assisting operators, and ensuring that products meet quality standards. They play a key role in maintaining workflow efficiency and may also help with cleaning, minor maintenance, and reporting issues to supervisors. Line Assistants often work as part of a team and need to follow safety and operational guidelines closely.

What is the difference between Line Assistant vs Machine Operator?

AspectLine AssistantMachine Operator
Required CredentialsHigh school diploma or equivalent; on-the-job trainingHigh school diploma; technical training or certification often preferred
Work EnvironmentFactories, production lines, manufacturing plantsFactories, manufacturing facilities, industrial settings
Employer & Industry UsageManufacturing companies, assembly linesManufacturing, industrial production, machinery operation
Common Search & ComparisonOften compared for entry-level manufacturing rolesCompared for technical skills and machinery handling

In summary, a Line Assistant typically supports production line activities with minimal technical skills, while a Machine Operator handles specific machinery, often requiring technical training or certifications. Both roles are essential in manufacturing environments but differ in responsibilities and skill requirements.

Is 32 too old to become a lineman?

Line assistants and linemen can start their careers at various ages, and 32 is not considered too old to begin training or enter the field. Physical fitness, relevant skills, and completing necessary certifications are important factors for success in this physically demanding job.

What are some common challenges faced by Line Assistants, and how can they be effectively managed?

Line Assistants often encounter challenges such as maintaining a consistent workflow during high-volume production periods and quickly adapting to changes in product specifications or equipment. Effective communication with team members and supervisors is essential to address issues promptly and minimize downtime. Staying organized, following safety protocols, and proactively monitoring the production line can help Line Assistants manage these challenges efficiently and contribute to the overall success of the team.

What are the key skills and qualifications needed to thrive as a Line Assistant, and why are they important?

To thrive as a Line Assistant, you need a solid understanding of manufacturing processes, attention to detail, and often a high school diploma or equivalent. Familiarity with assembly line machinery, safety protocols, and inventory tracking systems is typically required. Strong teamwork, time management, and the ability to follow instructions precisely are valuable soft skills in this role. These skills and qualities are crucial to ensure efficient workflow, product quality, and a safe working environment on the production line.
What are the most commonly searched types of Line jobs in California? The most popular types of Line jobs in California are:
What cities in California are hiring for Line Assistant jobs? Cities in California with the most Line Assistant job openings:
Line Assistant jobs near you
Infographic showing various Line Assistant job openings in California as of July 2026, with employment types broken down into 1% As Needed, 76% Full Time, 19% Part Time, 1% Temporary, and 3% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution.
Any Position

Any Position

Costco Wholesale Corporation

Santa Cruz, CA • On-site

$16.25 - $20.25/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 19 days ago

Costco rating

8.1

Company rating: 8.1 out of 10

Based on 1,907 frontline employees who took The Breakroom Quiz

2nd of 39 rated national retailers

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
Actively greets members, provides a high level of member service, performs clean up, department set-up and closing tasks as necessary.
Job Duties
  • Greets members, helps members load order onto conveyor belt, determines member packing preferences, answers questions, relates information on special promotions, thanks members, assists cashier by counting items left in cart, checking under items and positioning them for scanning.
  • Packs member orders into boxes and loads to a separate cart or flatbed. Checks packaging for tampering. Follow all safety and security procedures. Follows proper departmental procedures for performance of duties. Assists members loading orders into the car when appropriate.
  • May assist members with self checkouts with regards to scanning heavy merchandise, entering in items numbers.
  • May assist members with self checkouts through monitoring the registers for errors and keeping the belt area clean of product and debris.
  • Maintains cleanliness of register area and general front-end area. Cleans spills and trip hazards immediately.
  • Performs set up and closing duties for the department, such as returning products, collecting paperwork, stocking registers, and cleaning area.
  • Transfers pallets of merchandise from the receiving area to the steel shelves and bulk wall for storage, or directly to the sales floor.
  • Assists with stocking. Clears sales floor debris. Observes and ensures correct product signage; creates computer-generated signs. Labels unmarked product with item number.
  • Ensures proper cleanup and disposal of hazardous materials
  • Assists with department duties as necessary.
  • Assists in other departments of the warehouse as necessary.
  • Ability to operate vehicles, equipment or machinery.

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

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About Costco

Sourced by ZipRecruiter

Costco is a membership warehouse club, dedicated to bringing our members the best possible prices on quality brand-name merchandise. With more than 800 locations worldwide, Costco provides a wide selection of merchandise, plus the convenience of specialty departments and exclusive member services, all designed to make your shopping experience a pleasurable one. Today, as the company evolves, it stays true to the qualities that helped attract and retain millions of loyal members around the globe: Commitment to quality. Costco warehouses carry about 4,000 SKUs (stock keeping units) compared to the 30,000 found at most supermarkets. By carefully choosing products based on quality, price, brand, and features, the company can offer the best value to members.

Industry

Retail

Company size

10,000+ Employees

Headquarters location

Issaquah, WA, US

Year founded

1983

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