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Weekend Lab Assistant Jobs in Perris, CA (NOW HIRING)

Cement Lab Technician III

Jurupa Valley, CA

$19.25 - $25.50/hr

Additional voluntary benefits Compensation Responsibilities * Assist laboratory personnel on duties ... Oversee the Physical lab daily operations * Analyze data, prepare detailed technical reports, and ...

Cement Lab Technician III

Jurupa Valley, CA

$19.25 - $25.50/hr

Additional voluntary benefits Compensation Responsibilities * Assist laboratory personnel on duties ... Oversee the Physical lab daily operations * Analyze data, prepare detailed technical reports, and ...

Cement Lab Technician III

Jurupa Valley, CA · On-site

$19.25 - $25.50/hr

Additional voluntary benefits Compensation Responsibilities * Assist laboratory personnel on duties ... Oversee the Physical lab daily operations * Analyze data, prepare detailed technical reports, and ...

Clinical Lab Scientist

Temecula, CA · On-site

$44.74 - $67.12/hr

Clinical Lab Scientist (CLS) Reporting to the Director of Laboratory Services, the Clinical Lab Scientist is responsible for following established procedures to perform routine and STAT clinical ...

Clinical Lab Scientist (CLS) Reporting to the Director of Laboratory Services, the Clinical Lab Scientist is responsible for following established procedures to perform routine and STAT clinical ...

Physical ability to perform labor-intensive work including but not limited the safe handling and transport of concrete samples, soil samples, and other lab related materials. * Must have a valid ...

Physical ability to perform labor-intensive work including but not limited the safe handling and transport of concrete samples, soil samples, and other lab related materials. Qualifications * Must ...

Lab Technician

Riverside, CA · On-site

$20 - $25/hr

Physical ability to perform labor-intensive work including but not limited the safe handling and transport of concrete samples, soil samples, and other lab related materials. Qualifications * Must ...

Maintain lab safety, cleanliness and sample storage. * Understand and be familiar with Ultrasonic ... Maintain Homogenization Reports file. * Assist in QA projects/tasks directed by Metallurgist and QA ...

Medical Assistant

Chino, CA · On-site

$18 - $20/hr

Track lab results, call in prescriptions, and handle basic medical office duties Qualifications * BLS Certification or Certified Medical Assistant desired * Excellent customer service skills * Strong ...

Medical Assistant

Chino, CA · On-site

$18 - $20/hr

Track lab results, call in prescriptions, and handle basic medical office duties Qualifications * BLS Certification or Certified Medical Assistant desired * Excellent customer service skills * Strong ...

Lab Tech/Metallographer 1

Fontana, CA · On-site

$22 - $23.50/hr

Maintain lab safety, cleanliness and sample storage. * Understand and be familiar with Ultrasonic ... Maintain Homogenization Reports file. * Assist in QA projects/tasks directed by Metallurgist and QA ...

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Weekend Lab Assistant information

See Perris, CA salary details

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How much do weekend lab assistant jobs pay per hour?

As of Jul 19, 2026, the average hourly pay for weekend lab assistant in Perris, CA is $20.64, according to ZipRecruiter salary data. Most workers in this role earn between $16.92 and $23.51 per hour, depending on experience, location, and employer.

What is a Weekend Lab Assistant job?

A Weekend Lab Assistant supports laboratory operations by preparing samples, maintaining equipment, and assisting with experiments, typically on weekends. Responsibilities may include organizing lab materials, handling specimens, and ensuring safety protocols are followed. This role is common in medical, research, or academic labs and requires attention to detail and basic lab skills. It is ideal for students or individuals seeking part-time lab experience.

What are the key skills and qualifications needed to thrive in the Weekend Lab Assistant position, and why are they important?

To thrive as a Weekend Lab Assistant, you should have a solid background in basic laboratory procedures, safety protocols, and at least a high school diploma or equivalent, with higher education in the sciences preferred. Familiarity with lab equipment such as centrifuges, spectrophotometers, and laboratory information management systems (LIMS) is often required. Strong attention to detail, organizational skills, and effective communication set candidates apart in this role. These abilities are crucial for ensuring accurate sample handling, data recording, and maintaining a safe laboratory environment during non-standard work hours.

How much does a lab assistant get paid?

The average pay for a weekend lab assistant typically ranges from $10 to $15 per hour, depending on the location, employer, and required skills. Some positions may offer higher wages for specialized tasks or certifications, and schedules often include evening or weekend hours.

How many hours do lab assistants work?

Weekend lab assistants typically work part-time hours, often around 4 to 8 hours per shift, depending on the employer and schedule needs. Many positions are flexible and may require working evenings or weekends, with total weekly hours usually ranging from 8 to 20 hours. Full-time roles are less common for weekend lab assistants, who often work during specific shifts or on an as-needed basis.

What are the typical responsibilities of a Weekend Lab Assistant?

As a Weekend Lab Assistant, your primary duties include preparing and processing samples, maintaining lab equipment, recording data accurately, and ensuring the lab is clean and organized. You may also assist with inventory management, support researchers or senior technicians, and follow established protocols for safety and quality control. Due to the weekend schedule, you may work more independently but will still receive guidance from laboratory supervisors. This role provides valuable hands-on experience in a professional lab environment and the opportunity to collaborate with experienced staff when needed.

What qualifications do I need to be a lab assistant?

To be a weekend lab assistant, candidates typically need a high school diploma or equivalent. Relevant skills include attention to detail, basic knowledge of laboratory procedures, and the ability to follow safety protocols; some positions may require prior experience or coursework in science or related fields.

Are lab assistants in high demand?

Lab assistants are generally in steady demand across various industries such as healthcare, research, and education. Employment growth depends on the sector and geographic location, but the role often requires attention to detail and basic laboratory skills. Opportunities may increase with advancements in scientific research and healthcare services.
What job categories do people searching Weekend Lab Assistant jobs in Perris, CA look for? The top searched job categories for Weekend Lab Assistant jobs in Perris, CA are:
What cities near Perris, CA are hiring for Weekend Lab Assistant jobs? Cities near Perris, CA with the most Weekend Lab Assistant job openings:
Cement Lab Technician III

Cement Lab Technician III

CalPortland

Jurupa Valley, CA

$19.25 - $25.50/hr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 7 days ago


CalPortland rating

7.5

Company rating: 7.5 out of 10

Based on 28 frontline employees who took The Breakroom Quiz


Job description

Job Summary

The Laboratory Technician III will be responsible for performing and overseeing cement laboratory operations, including sampling, preparation, and testing of materials in accordance with ASTM and AASHTO standards. This position performs advanced quality tests, analyzes data, and prepares detailed technical reports while ensuring accurate recordkeeping. The role involves coordinating daily lab activities and collaborating with chemists and management to improve testing methods and procedures. Additionally, the technician mentors junior staff, supports audits and inspections, and maintains a clean, safe, and compliant laboratory environment. Strong technical expertise, problem-solving skills, and the ability to work independently and lead others are essential for success in this role. 

Benefits

CalPortland is proud to offer a comprehensive, competitive benefits package that provides health and financial support to our most important resources: our employees. Your benefits are an important part of your overall compensation at CalPortland. That's why we give you a wide range of benefits to choose from. 

  • Medical, Dental, Vision
    • low-cost premiums even for family coverage
  • Company-paid life/AD&D insurance
  • Company-paid short-term disability
  • Paid sick/vacation/holiday
  • 401k/Company Funded Pension Program (program is dependent upon location and job type)
  • Employee Assistance Program (EAP)
  • Additional voluntary benefits
Compensation
Responsibilities
  • Assist laboratory personnel on duties that pertain to sampling, preparation, and testing of cement
  • Perform sample preparations and standard quality tests on Portland cement (in accordance with the most current ASTM and AASHTO standards)
  • Maintain clear and accurate records on test and quality data
  • Oversee the Physical lab daily operations
  • Analyze data, prepare detailed technical reports, and present findings to the Laboratory Manager and other stakeholders
  • Collaborate with chemists and management to develop new testing methods and optimize existing procedures
  • Coordinate with the Laboratory Manager to plan and prioritize workload, ensuring timely completion of high-priority tasks
  • Assist in laboratory audits and inspections, and ensure all documentation is up-to-date and accurate
  • Mentor and train Lab Technician I and II staff in advanced techniques, laboratory best practices, and safety procedures
  • Ensure the laboratory is properly maintained by keeping all work areas clean, organized, and compliant with housekeeping standards, and by disposing of samples in the appropriate designated waste containers
  • Perform any other tasks as directed by the Laboratory Manager to support laboratory operations and research initiatives
Education
  • High school diploma
  • Associate degree in Engineering Technology or equivalent preferred 
Requirements/Qualifications
  • Minimum 5 years' experience in similar roles in cement plant labs, Technical Centers performing cement standard tests, or similar - 7 Years' experience preferred
  • Possess a strong understanding and hands-on expertise in the key tests related to cement, including all testing associated to ASTM C150, C595, C618, C989, and additional tests such as C157, C1038, C452, C1012, C1260, C1567, and any other relevant test
  • Possess certifications relevant to cement testing, preferred
  • Strong problem-solving skills and ability to work independently on complex tasks
  • Excellent communication and leadership abilities, with experience mentoring and training junior staff
  • Proficiency in data analysis and report writing, with strong attention to detail
  • Requires the following motions: climbing, stooping, bending, squatting, occasional lifting of up to 50 pounds, stretching, sitting, walking on uneven ground and stairs
  • Able to work cooperatively with others
  • Overtime work will be required as needed
  • Must meet OSHA 10 guidelines and be able to follow all CalPortland Safety Policies
  • ANSI approved PPE will be provided and must be used when required
  • Intermediate skills in Microsoft Office Suite
  • Must be able to speak, read and write in English
Conditions of Employment

Successful candidate must submit to a post-offer pre-employment physical examination, drug/alcohol screen, and background check. Some positions require Federal Motor Carrier Safety Administration (FMCSA) registration/clearance as well as ongoing alcohol and drug testing. In accordance with the San Francisco Fair Chance Ordinance, for work that will be performed in the San Francisco area, qualified applicants with arrest and conviction records will be considered for employment.


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