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Weekend Lab Jobs in Riverside, CA (NOW HIRING)

TridentCare

Lab Assistant

Irvine, CA · On-site

$18/hr

Routes reference lab specimens, with a copy of the requisition, to the reference lab desk for inclusion into the TRK Sendout Manifest for the Burbank lab. * Prepares reference lab coolers correctly ...

Trident Care

Lab Assistant

Irvine, CA

$18/hr

Routes reference lab specimens, with a copy of the requisition, to the reference lab desk for inclusion into the TRK Sendout Manifest for the Burbank lab. * Prepares reference lab coolers correctly ...

Trident Care

Lab Assistant

Irvine, CA

$18/hr

Routes reference lab specimens, with a copy of the requisition, to the reference lab desk for inclusion into the TRK Sendout Manifest for the Burbank lab. * Prepares reference lab coolers correctly ...

TridentCare

Lab Assistant

Irvine, CA · On-site

Routes reference lab specimens, with a copy of the requisition, to the reference lab desk for inclusion into the TRK Sendout Manifest for the Burbank lab. * Prepares reference lab coolers correctly ...

TridentCare

Lab Assistant

Irvine, CA

$18/hr

Routes reference lab specimens, with a copy of the requisition, to the reference lab desk for inclusion into the TRK Sendout Manifest for the Burbank lab. * Prepares reference lab coolers correctly ...

TridentCare

Lab Assistant

Irvine, CA · On-site

Routes reference lab specimens, with a copy of the requisition, to the reference lab desk for inclusion into the TRK Sendout Manifest for the Burbank lab. * Prepares reference lab coolers correctly ...

Inficare Technologies

Lab Technician

Irvine, CA · On-site

$20.50 - $27/hr

Role - Qualys Lab Technician Location - Irvine, CA (100% onsite) POSITION DESCRIPTION: We are seeking a highly skilled and experienced Lab Infrastructure Services Engineer to join Client's team. The ...

Optiq Health Labs

Lab Technician I/II/III

Santa Ana, CA · On-site

$17 - $20/hr

  • Medical

  • Dental

  • Vision

  • PTO

Lab Techs ensure all tasks are completed in compliance with established quality and safety ... Weekend availability required Work Location Requirements: * Ability to reliably commute to Santa ...

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 ...

Carenest Health

Registered Nurse - Cath Lab

Orange, CA · On-site

Call Requirements: 7 days/month; 1 weekend per month (Fri-Sun PM) + 1 day/week. Candidates should have at least 2 years lab exp in a 250 bed facility. If IR RN, must have EPIC experience. If Cath Lab ...

System One

Lab Technician

Irvine, CA · On-site

$28 - $32/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Lab Technician Location : Irvine, CA Work Model : Onsite Hours : M-F 8am-5pm Compensation : $28.00 - $32.00/hr Type : 12-month contract, Potential for extension or conversion to permanent ...

System One Holdings, LLC

Lab Technician

Irvine, CA · On-site

$28 - $32/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Lab Technician Location : Irvine, CA Work Model : Onsite Hours : M-F 8am-5pm Compensation : $28.00 - $32.00/hr Type : 12-month contract, Potential for extension or conversion to permanent ...

System One

Lab Technician

Irvine, CA · On-site

$28 - $32/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Lab Technician Location : Irvine, CA Work Model : Onsite Hours : M-F 8am-5pm Compensation : $28.00 - $32.00/hr Type : 12-month contract, Potential for extension or conversion to permanent ...

PML

Lab Sampler/Driver

Irvine, CA · On-site

$20.50 - $27/hr

  • Medical

  • Dental

Lab Sampler/Driver Reports to: Logistics Dept. Location: Irvine, CA Company Description PML's mission is to adopt best practices in cannabis testing, provide unrivaled customer service and accurate ...

PML

Lab Sampler/Driver

Irvine, CA · On-site

$20.50 - $27/hr

  • Medical

  • Dental

Lab Sampler/Driver Reports to: Logistics Dept. Location: Irvine, CA Company Description PML's mission is to adopt best practices in cannabis testing, provide unrivaled customer service and accurate ...

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Showing results 1-20

All JobsLab JobsWeekend Lab JobsWeekend Lab Jobs in Riverside, CA

Weekend Lab information

See Riverside, CA salary details

$10

$26

$47

How much do weekend lab jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for weekend lab in Riverside, CA is $26.34, according to ZipRecruiter salary data. Most workers in this role earn between $20.05 and $29.09 per hour, depending on experience, location, and employer.

What is a Weekend Lab?

A Weekend Lab job typically refers to a laboratory technician or assistant position where the primary work schedule falls on weekends. Employees in this role are responsible for performing lab tests, managing samples, maintaining equipment, and recording data, often in hospitals, research facilities, or diagnostic labs. Weekend Lab staff play a critical part in ensuring continuous laboratory operations, especially when full-time weekday staff are unavailable. These positions may require technical skills, attention to detail, and the ability to work independently. Weekend Lab jobs are ideal for individuals seeking flexible work hours or supplemental income.

What are some unique challenges faced by professionals working in a Weekend Lab position?

Professionals in a Weekend Lab role often encounter challenges such as managing time-sensitive experiments with limited weekday support and adapting to a quieter, sometimes solitary work environment. Being responsible for ongoing research or diagnostic work during weekends requires strong organization and the ability to troubleshoot issues independently. Collaboration with weekday staff is essential, so clear documentation and effective communication are key to ensuring continuity and data integrity across shifts.

What are the key skills and qualifications needed to thrive as a Weekend Lab technician, and why are they important?

To thrive as a Weekend Lab Technician, you need a solid understanding of laboratory procedures, attention to detail, and at least an associate degree or certification in laboratory science. Familiarity with laboratory information systems (LIS), automated analyzers, and standard lab equipment is typically required. Strong problem-solving skills, effective communication, and the ability to work independently are crucial soft skills for this role. These competencies ensure accurate test results, efficient workflow, and reliable laboratory operations during weekend shifts.

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

AspectWeekend LabMedical Laboratory Technician
CredentialsTypically requires a certification or training specific to weekend shiftsRequires an associate degree in medical laboratory technology and certification
Work EnvironmentLaboratories operating on weekend schedules, often in hospitals or clinicsHospitals, clinics, or diagnostic labs during regular or weekend hours
Industry UsageUsed in healthcare settings needing weekend coverageStandard role in medical diagnostics and lab testing

Weekend Lab roles focus on providing laboratory services during weekends, often requiring specific certifications for weekend work. Medical Laboratory Technicians perform diagnostic tests in healthcare labs, usually with formal education and certification. While both work in lab environments, Weekend Lab positions are tailored for weekend shifts, whereas Medical Laboratory Technicians work throughout the week. Understanding these differences helps job seekers find roles aligned with their credentials and scheduling preferences.

What are the most commonly searched types of Lab jobs in Riverside, CA?

The most popular types of Lab jobs in Riverside, CA are:

What cities near Riverside, CA are hiring for Weekend Lab jobs?

Cities near Riverside, CA with the most Weekend Lab job openings:

Weekend Lab jobs near you
Infographic showing various Weekend Lab job openings in Riverside, CA as of August 2026, with employment types broken down into 1% As Needed, 69% Full Time, 25% Part Time, 4% Contract, and 1% Nights. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution, with an average salary of $54,789 per year, or $26.3 per hour.

Lab Tech II (Environmental Monitoring & Water Testing Analyst)

Orion Group

Orange, CA • On-site

$23 - $26/hr

Contractor

Posted 12 days ago

Job description

Lab Tech II (Environmental Monitoring & Water Testing Analyst)
100% Onsite - Irvine, CA
Contract until end of year (extension will depend on performance & business need)
Hourly Rate: $23-26/hr (medical benefits available at a cost)
We're seeking a detail-oriented Lab Technician/Analyst to support environmental monitoring and microbiological water testing within a cGMP-regulated laboratory in Irvine, CA. The ideal candidate will have a bachelor's degree in a scientific discipline, at least two years of QC/GMP laboratory experience, and hands-on knowledge of water collection, bioburden, endotoxin testing, and general microbiology. This 100% onsite role requires strong documentation and data-integrity practices, the ability to work independently, and flexibility to work overtime, weekends, or nonstandard hours as business needs arise.
Furthermore, the position requires the individual to work with and in areas requiring select agents and Toxins access (i.e. Biosafety level 2 and biosafety level 3 laboratories). Access to and use of select agents is regulated by federal policies. Therefore, the candidate must conduct all work activities in compliance with internal and applicable regulatory requirements.
What are the top 3-5 skills, experience or education required for this position:
  1. Environmental monitoring
  2. water bioburden
  3. water endotoxin
  4. water collection
  5. Able to work overtime, weekends, odd hours as needed

Job Description:
  • Understand Regulations and business processes required to maintain Laboratory Data Integrity.
  • Maintain and comply with Laboratory Documentation and Computerized Systems Data Integrity requirements
  • Responsible for the timely completion of laboratory testing.
  • Adhere to cGMP requirements.
  • Adhere to and supports all EHS & E standards, procedures and policies
  • Prefer knowledge in environmental monitoring or water collection
  • Prefer knowledge in water testing, general microbiology
  • Prefer knowledge working in a GMP lab setting
  • Responsible for daily activities such as waste disposal, glasswasher, autoclave runs
  • Able to work overtime, weekends and odd hours as needed

Qualification:
  • Bachelor's Degree in Sciences, with a minimum of 2 year of lab experience in a QC GMP environment
  • Experience working in a GMP regulated environment
  • Ability to articulate clearly when dealing with colleagues, peer groups and managers.
  • Proven ability to work independently and autonomously when required.
  • High attention to detail.
  • Ability to work well under pressure and consistently deliver results while demonstrating an action- orientated approach to overcome obstacles.
  • Relevant industry experience preferred.

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Orion Group was founded in 1987 and is now one of the largest, independent, international recruitment companies. We have a network of 200 employees working from 24 offices, delivering a range of services - Talent Acquisition, Recruitment Outsourcing Services, Retained Search, Global Workforce Solutions, Completions & Commissioning and Materials Management - across 68 countries. As a global leader in workforce solutions, we recruit personnel across the Engineering & Technical, Office & Commercial, Scientific and Skilled Trades disciplines, for sectors including Oil & Gas, Life Science, Power & Utilities, Constructions & Infrastructure, Manufacturing and Renewables.

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