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Overnight Lab Assistant Jobs in California (NOW HIRING)

Certified Group

Chemistry Lab Tech

Tustin, CA · On-site

$20 - $26.50/hr

JOB SUMMARY Assist in the chemical testing of food products, ingredients, and other matrices with ... Overnight Travel may be required at the discretion of management * Regularly lift and/or move up to ...

Primus Group

Overnight Dispatch Coordinator

Salinas, CA · On-site

$23 - $25/hr

They will assist the laboratory with administrative duties such as customer service, dispatching ... the lab, and conducting facility sampling and routinely picking up product samples (clean DMV ...

Primus Group

Overnight Dispatch Coordinator

Salinas, CA · On-site

$23 - $25/hr

They will assist the laboratory with administrative duties such as customer service, dispatching ... the lab, and conducting facility sampling and routinely picking up product samples (clean DMV ...

Certified Group

Chemistry Lab Tech

Tustin, CA · On-site

$21 - $24/hr

JOB SUMMARY Assist in the chemical testing of food products, ingredients, and other matrices with ... Overnight Travel may be required at the discretion of management * Regularly lift and/or move up to ...

HonorVet Technologies

Travel Cath Lab RN

Burbank, CA · On-site

Call Required - 7 call shift per pay period -- 7 overnight calls per 14 days. They try to have ... LPNs/LVNs, CNAs/CMAs, and NPs--across diverse facilities, including hospitals, clinics ...

New

Certified Group

Chemistry Lab Tech

Tustin, CA

$21 - $24/hr

JOB SUMMARY Assist in the chemical testing of food products, ingredients, and other matrices with ... Overnight Travel may be required at the discretion of management * Regularly lift and/or move up to ...

LanceSoft

Travel Cath Lab RN

Burbank, CA · On-site

Call Required - 7 call shift per pay period -- 7 overnight calls per 14 days. They try to have ... Assistants, and Certified Nursing Assistants to work in Acute Care Centers, Skilled Nursing ...

New

Veolia

Senior Lab Pack Chemist

San Jose, CA · On-site

Mentor and assist new employees in field work duties. * Complete site walks to inventory and assess ... Moderate to extensive travel with 20% overnight travel * Physical ability to lift and move material ...

Enviri Corporation

Senior Lab Pack Chemist

San Jose, CA · On-site

$37 - $38/hr

Mentor and assist new employees in field work duties. * Complete site walks to inventory and assess ... Moderate to extensive travel with 20% overnight travel * Physical ability to lift and move material ...

Enviri Corporation

Senior Lab Pack Chemist

San Jose, CA · On-site

$37 - $38/hr

Mentor and assist new employees in field work duties. * Complete site walks to inventory and assess ... Moderate to extensive travel with 20% overnight travel * Physical ability to lift and move material ...

Enviri Corporation

Lab Pack Manager

San Jose, CA · On-site

$80K - $100K/yr

Conduct weekly meetings with staff to provide updates and address any issues that arise. * Assist ... overnight travel * Must be able to regularly access and use general office equipment including ...

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Overnight Lab Assistant information

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

AspectOvernight Lab AssistantLaboratory Technician
CredentialsHigh school diploma or equivalent; some roles may require certificationAssociate's degree or certification in laboratory sciences
Work EnvironmentLaboratories operating overnight, often in healthcare, research, or industrial settingsLaboratories during regular hours, involved in testing, analysis, and data recording
Employer & IndustryHospitals, research facilities, industrial labsMedical labs, research institutions, manufacturing companies
Search & Comparison IntentPeople comparing overnight roles with lab support positionsIndividuals seeking detailed lab technician roles

Overnight Lab Assistants typically work during night shifts with minimal certifications, focusing on basic lab support tasks. Laboratory Technicians usually hold formal education and work during daytime hours, performing detailed testing and analysis. Both roles are essential in lab operations but differ mainly in shift timing and qualification requirements.

What are some common challenges faced by overnight lab assistants and how can they be addressed?

Overnight Lab Assistants often face challenges such as working independently with limited supervision, managing fatigue during late hours, and troubleshooting unexpected equipment issues. To address these, it's important to develop strong time management skills, maintain open communication with daytime staff through detailed shift reports, and familiarize yourself thoroughly with lab protocols and emergency procedures. Taking regular, scheduled breaks and staying organized can also help you stay alert and productive throughout your shift.

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

To thrive as an Overnight Lab Assistant, you need a basic understanding of laboratory procedures, attention to detail, and typically a high school diploma or associate degree in a science-related field. Familiarity with laboratory equipment, safety protocols, and lab information management systems (LIMS) is often required. Strong organizational skills, reliability, and effective communication are crucial soft skills for this role. These competencies ensure accurate sample processing, maintain lab safety standards, and support seamless operations during overnight shifts.

What is an overnight lab assistant?

Overnight Lab Assistants are support staff who work during nighttime hours in laboratories, often in medical, research, or educational settings. Their primary responsibilities include preparing and processing samples, running routine tests, maintaining lab equipment, and ensuring that the lab operates smoothly outside of regular business hours. They may also assist with data entry, inventory management, and reporting results to supervisors. Working overnight requires attention to detail, the ability to work independently, and adherence to safety protocols. This role is essential for labs that operate 24/7 or require continuous monitoring of experiments or specimens.
What are popular job titles related to Overnight Lab Assistant jobs in California? For Overnight Lab Assistant jobs in California, the most frequently searched job titles are:
What job categories do people searching Overnight Lab Assistant jobs in California look for? The top searched job categories for Overnight Lab Assistant jobs in California are:
What cities in California are hiring for Overnight Lab Assistant jobs? Cities in California with the most Overnight Lab Assistant job openings:
Overnight Lab Assistant jobs near you
Infographic showing various Overnight Lab Assistant job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Lab Assistant Non Licensed: Microbiology

Hoag

Newport Beach, CA • On-site

Part-time

Posted 14 days ago

Job description

Work Schedule: This is a parttime, overnight position scheduled from 9:30 PM to 6:00 AM, with required shifts every other weekend.

Primary Duties And Responsibilities

The Laboratory Assistant I may verify, process (including complex and multiple step procedures) and prepare specimens for clinical lab, reference and/or point of care testing. Communicates lab related information including but not limited to results to customers (within and outside of the organization). May perform maintenance as directed and maintain department supply par levels including distribution as necessary. May assist with quality assurance data collection and recording, as well as action/follow-up. Performs varies lab related administrative duties.

The Laboratory Assistant I projects an image of professionalism in communication, appearance and conduct, and supports the laboratory and Hoag's mission. Maintains current knowledge of departmental updates, policies and procedures. Uses initiative to resolve problems with appropriate action and follow through, including documentation. 

Performs other duties as assigned.

Hoag Memorial Hospital Presbyterian is a nonprofit regional health care delivery network in Orange County, California, consisting of three acute-care hospitals with sixteen urgent care centers, eleven health centers and a network of more than1,800 physicians, 100 allied health members, 8,000 employees, and 2,000 volunteers. More than 30,000 inpatients and 550,000 outpatients choose Hoag each year.

For over 70 years, Hoag has delivered a level of personalized care that is unsurpassed among Orange County's health care providers. Since 1952, Hoag has served the local communities and continues its mission to provide the highest quality health care services through the core strategies of quality and service, people, physician partnerships, strategic growth, financial stewardship, community benefit and philanthropy.

Hoag offers a comprehensive blend of health care services including six institutes providing specialized care in the areas of cancer, heart and vascular, neurosciences, women's health, orthopedics, and digestive health through our institutes.

Hoag was the highest ranked hospital in Orange County in the 2024-2025 U.S. News &World Report, the only Orange County hospital ranked in the top 10 for California. The organization was ranked the #5 hospital in the Los Angeles Metro Area and the #10 hospital in California.

To learn more about Hoag's awards and accreditations, visit: https://www.hoag.org/about-hoag/awards-accreditations/.

Hoag is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind. Hoag is committed to the principle of equal employment opportunity for all employees and providing employees with a work environment free of discrimination and harassment. Hoag hires a diverse group of people in a manner that allows them to reach their full potential in the pursuit of organizational objectives.

Education and Experience

Required:

High school graduate or equivalent 

Preferred:

Baccalaureate Degree including science courses 

License Required

N/A

License Preferred

N/A

Certifications Required

N/A

Certifications Preferred

N/A

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