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Lab Assistant Jobs in Rialto, CA (NOW HIRING)

CommonSpirit Health

Lab Assistant

San Bernardino, CA · On-site

One California As our Lab Assistant, you will play a crucial role in solving diagnostic mysteries, bringing us one step closer to effectively treating patient illnesses and injuries. Every day, you ...

Chapman University

General Lab Assistant

Orange, CA · On-site

$50/hr

Posting Details Position Information Position Title General Lab Assistant Position Type Temporary Job Number SA73124 Full or Part Time part-time 0-19 hours weekly Fair Labor Standard Act ...

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Lab Assistant information

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How much do lab assistant jobs pay per hour?

As of Aug 27, 2026, the average hourly pay for lab assistant in Rialto, CA is $20.30, according to ZipRecruiter salary data. Most workers in this role earn between $16.63 and $23.12 per hour, depending on experience, location, and employer.

What is a lab assistant?

As a laboratory assistant or lab technician, you are responsible for helping scientists conduct experiments in a laboratory environment. You may be asked to prepare, clean, and maintain lab equipment and log readings and results. Your responsibilities may also include performing basic analyses of samples and recording results accurately. Your responsibilities will vary based on the type of lab you work in, but compliance with protocols and commitment to safety and accuracy are critical in any lab.

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

To thrive as a Lab Assistant, you need a basic understanding of laboratory procedures, safety protocols, and often an associate degree or relevant coursework in science. Familiarity with laboratory information management systems (LIMS), standard lab equipment, and proper sample handling techniques is typically required. Attention to detail, strong organizational skills, and effective teamwork are essential soft skills for this role. These skills ensure accurate results, maintain lab safety standards, and support smooth laboratory operations.

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

Lab Assistants often encounter challenges such as managing multiple tasks under tight deadlines, maintaining strict adherence to safety protocols, and ensuring the accuracy of data collection. To manage these effectively, it's important to stay organized, communicate proactively with supervisors and colleagues, and remain attentive to details when handling samples or preparing equipment. Many labs offer training on safety and procedures, so taking advantage of these resources can help new hires adapt quickly and perform confidently in their roles.

What is the difference between Lab Assistant vs Medical Laboratory Technician?

AspectLab AssistantMedical Laboratory Technician
Required CredentialsHigh school diploma or equivalent; on-the-job trainingAssociate degree in medical laboratory technology or related field
Work EnvironmentHospitals, clinics, research labsHospitals, diagnostic labs, healthcare facilities
Job ResponsibilitiesAssist with sample collection, prepare specimens, maintain lab equipmentPerform complex tests, analyze samples, report results
Industry UsageCommonly used in healthcare and research settingsPrimarily in medical diagnostics and healthcare

While both roles support laboratory operations, Medical Laboratory Technicians perform more advanced testing and require specialized education. Lab Assistants typically handle basic tasks and support lab staff, making them entry-level positions in healthcare labs.

How much does a lab assistant get paid?

Lab assistants typically earn between $25,000 and $40,000 annually, depending on experience, location, and the specific industry or laboratory setting. Entry-level positions may start lower, while those with specialized skills or certifications can earn higher wages. Pay can also vary based on full-time or part-time status and the complexity of tasks performed.

What exactly does a lab assistant do?

A lab assistant supports laboratory operations by preparing samples, maintaining equipment, recording data, and ensuring safety protocols are followed. They often work under the supervision of scientists or technicians and may need knowledge of lab procedures and basic scientific techniques.

What qualifications do I need to be a lab assistant?

To become a lab assistant, candidates typically need a high school diploma or equivalent; some positions may require postsecondary education or relevant coursework in science. Basic knowledge of laboratory procedures, attention to detail, and familiarity with lab equipment are important. Certifications such as OSHA safety training can also be beneficial.
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Lab Assistant jobs near you
Infographic showing various Lab Assistant job openings in Rialto, CA as of August 2026, with employment types broken down into 2% As Needed, 74% Full Time, 21% Part Time, 1% Temporary, and 2% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $42,230 per year, or $20.3 per hour.

Lab Assistant

CommonSpirit Health

San Bernardino, CA • On-site

Full-time

This job post has expired today. Applications are no longer accepted.

CommonSpirit Health rating

7.0

Company rating: 7.0 out of 10

Based on 539 frontline employees who took The Breakroom Quiz

417th of 894 rated healthcare providers

Job description

Founded in 1928, Dignity Health - St. Bernardine Medical Center is a 342-bed, acute care, nonprofit hospital located in San Bernardino, California. Serving nearly 100,000 patients annually, the hospital offers a full complement of services including a Level III NICU, heart care, stroke care and orthopedics. Additionally, St.Bernardine Medical Center has been recognized as an LGBTQ+ Healthcare Equality High Performer by the Human Rights Campaign Foundation. It is a Joint Commission-certified Primary Stroke Center and was recently awarded AMA/ASA’s Get the Guidelines - Stroke Gold Plus Quality Achievement, recognizing the hospital’s commitment to providing the best stroke care. It was named one of Healthgrades America’s 100 Best Hospitals for Prostate Surgery in 2026.

One Community. One Mission. One California 


As our Lab Assistant, you will play a crucial role in solving diagnostic mysteries, bringing us one step closer to effectively treating patient illnesses and injuries.

Every day, you will utilize your expertise and our advanced technology to precisely collect, prepare, and process a diverse range of patient specimens (blood, urine, tissue, etc.) for various diagnostic tests.

To be successful in this role, you will possess a foundational understanding of laboratory procedures, demonstrate meticulous attention to detail, and maintain an eager commitment to continuous learning and professional development.

Responsibilities: 

  • The lab assistant must be able to demonstrate the knowledge and skills necessary to provide appropriate care relative to the patient's age-specific needs.
  • This lab assistant will play a critical role in the Emergency Room schedule
  • Assist with specimen processing, including labeling, centrifuging, and aliquoting.
  • Prepare reagents and solutions according to established protocols.
  • Maintain laboratory equipment and supplies to ensure cleanliness and proper functioning.
  • Perform routine lab tasks such as washing glassware, sterilizing instruments, and preparing culture media.
  • Assist with data entry and record-keeping, ensuring accuracy and compliance with relevant regulations.
  • Assist with other tasks as assigned by the laboratory supervisor.
  • Will be required to work in the Emergency Room

This position is represented by SEIU-UHW and is covered by the terms and conditions of the applicable collective bargaining agreement.


  • Minimum of six (6) months as a laboratory phlebotomist is required.
  • California Certified Phlebotomy through the Department of Public Health required. California Phlebotomy Certification

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