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Weekend Chemistry Jobs in Riverside, CA (NOW HIRING)

LGM Pharma, LLC

ATS CHEMIST II

Irvine, CA · On-site

$30 - $34/hr

Bachelors degree in chemistry or related discipline. * 2+ years experience in a chemistry laboratory. * 2+ yrs of years experience with analytical instrumentation, such as HPLC, GC, CE, ICP, FTIR ...

Actalent

Analytical Chemist

Irvine, CA

$70K - $83K/yr

Bachelor's degree in Chemistry or a closely related scientific discipline. * 2-5+ years of experience in an analytical chemistry role, preferably within a GMP-regulated laboratory. * Hands-on ...

Kelly Services

Quality Control Chemist II-III

Irvine, CA

$30 - $38/hr

Bachelor's degree in chemistry or related discipline. 2-8 years' experience in a chemistry laboratory, or equivalent combination of education and experience. * 2-8 years' experience with analytical ...

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LGM Pharma, LLC

ATS CHEMIST III

Irvine, CA · On-site

$34 - $38/hr

Bachelor's degree in chemistry or related discipline. * 5+ plus years' experience in a chemistry laboratory, or equivalent combination of education and experience. * 5+ years' experience with ...

Vitrax

Medicinal Chemist

Placentia, CA · On-site

$90K - $170K/yr

Seeking self motivated experienced medicinal chemist to help lead custom synthesis group. Primary job responsibility involves development of key radiolabeled starting materials and their application ...

CalPortland

Research Chemist

Jurupa Valley, CA · On-site

$70K - $80K/yr

... Chemistry, Geology, Material Science; or Engineering, Chemistry, or a related field, with a minimum of 5 years of relevant experience * Other degrees may be acceptable depending on work experience ...

CalPortland

Research Chemist

Jurupa Valley, CA · On-site

$70K - $80K/yr

... Chemistry, Geology, Material Science; or Engineering, Chemistry, or a related field, with a minimum of 5 years of relevant experience * Other degrees may be acceptable depending on work experience ...

Vitrax

Medicinal Chemist

Placentia, CA · On-site

$90K - $170K/yr

Seeking self motivated experienced medicinal chemist to help lead custom synthesis group. Primary job responsibility involves development of key radiolabeled starting materials and their application ...

CalPortland

Research Chemist

Jurupa Valley, CA

$70K - $80K/yr

... Chemistry, Geology, Material Science; or Engineering, Chemistry, or a related field, with a minimum of 5 years of relevant experience * Other degrees may be acceptable depending on work experience ...

Enviri Corporation

Lab Pack Chemist I

Pomona, CA · On-site

$30/hr

Basic understanding of chemistry through general chemistry or biology This position requires a CDL B to be obtained within a 6-month period from your start date. Selected candidates will receive paid ...

Enviri Corporation

Lab Pack Chemist I

Pomona, CA · On-site

$30/hr

Basic understanding of chemistry through general chemistry or biology This position requires a CDL B to be obtained within a 6-month period from your start date. Selected candidates will receive paid ...

Kelly Services

Quality Control Chemist

Irvine, CA

$30 - $34/hr

Bachelor's degree in Chemistry or a related discipline * 2-5 years of experience in a pharmaceutical chemistry laboratory * 2-5 years of experience with analytical instrumentation such as HPLC, GC ...

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All JobsChemistry JobsWeekend Chemistry JobsWeekend Chemistry Jobs in Riverside, CA

Weekend Chemistry information

See Riverside, CA salary details

$14

$23

$33

How much do weekend chemistry jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for weekend chemistry in Riverside, CA is $23.22, according to ZipRecruiter salary data. Most workers in this role earn between $19.04 and $25.58 per hour, depending on experience, location, and employer.

What are some unique challenges faced by chemists working weekend shifts, and how can they be managed?

Chemists working weekend shifts often encounter challenges such as limited access to support staff, fewer colleagues on-site, and potential delays in obtaining approvals or materials. To manage these, it's important to plan experiments in advance, clearly communicate with weekday teams, and ensure all necessary resources are available before the weekend. Many organizations provide detailed shift handover protocols and remote support options to help weekend chemists address issues efficiently and maintain safety standards.

What is a weekend chemist?

A Weekend Chemist is a professional responsible for performing chemical analyses, experiments, and lab maintenance duties during weekends. They may work in academic, pharmaceutical, industrial, or environmental labs, supporting ongoing research or production processes outside of standard weekday hours. Weekend Chemists often ensure that critical experiments are monitored and that lab operations continue smoothly over the weekend. This role can be ideal for students, part-time workers, or those seeking flexible schedules.

What skills and qualifications are needed to thrive as a weekend chemist?

To thrive as a Weekend Chemistry Lab Technician, you need a solid understanding of chemical principles, laboratory procedures, and safety protocols, usually supported by at least an associate or bachelor’s degree in chemistry or a related field. Familiarity with analytical instruments such as spectrophotometers, chromatographs, and laboratory information management systems (LIMS) is typically required. Strong attention to detail, effective communication, and the ability to work independently during off-hours are vital soft skills. These qualifications ensure precise and safe experimentation, reliable data collection, and smooth lab operations outside standard workdays.

What is the difference between Weekend Chemistry vs Weekend Chemical Technician?

AspectWeekend ChemistryWeekend Chemical Technician
CertificationsTypically requires a chemistry degree or related certificationRequires a chemistry or chemical technician certification or associate degree
Work EnvironmentLaboratory settings, research facilities, or industrial labsLaboratory environments, manufacturing plants, or quality control labs
Industry UsageUsed across research, pharmaceuticals, and industrial sectorsCommon in manufacturing, quality assurance, and industrial processes

Weekend Chemistry and Weekend Chemical Technician roles share similar environments and certifications, often overlapping in industrial and laboratory settings. The main difference lies in the job scope, with chemists focusing more on research and analysis, while chemical technicians support manufacturing and quality control processes.

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

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

What are popular job titles related to Weekend Chemistry jobs in Riverside, CA?

For Weekend Chemistry jobs in Riverside, CA, the most frequently searched job titles are:

What job categories do people searching Weekend Chemistry jobs in Riverside, CA look for?

The top searched job categories for Weekend Chemistry jobs in Riverside, CA are:

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

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

Weekend Chemistry jobs near you

ATS CHEMIST II

LGM Pharma, LLC

Irvine, CA • On-site

$30 - $34/hr

Full-time

Medical, Dental, Vision, Retirement

Posted 10 days ago

Job description

PRIMARY DUTIES AND RESPONSIBILITIES:

  • Perform and/or assist with analytical testing of raw materials, in-process samples, and finished products.
  • Utilize analytical laboratory instrumentation with supervision.
  • Comply with cGMP regulations and follow all standard operating procedures.
  • Peer review data generated by other technicians.
  • Maintain and troubleshoot laboratory equipment and analytical instrumentation within level of experience.
  • Perform and/or assist with equipment calibrations and qualification.
  • Other related duties as required.


REQUIRED SKILLS, ABILITIES, AND QUALIFICATIONS:

  • Bachelors degree in chemistry or related discipline.
  • 2+ years experience in a chemistry laboratory.
  • 2+ yrs of years experience with analytical instrumentation, such as HPLC, GC, CE, ICP, FTIR, TOC, MS, and dissolution apparatus.
  • Ability to follow standard operating procedures.
  • Strong communication skills, both written and verbal.
  • Ability to organize, prioritize and effectively perform concurrent tasks with minimal supervision.
  • Strong attention to detail.
  • Desire and ability to work in a positive team environment.

*We are not offering sponsorship or relocation for this position.

At LGM Pharma, we always take pride in putting our people first. We are an equal opportunity employer. We offer medical, dental, vision and company matching 401K.

All suitably qualified candidates will receive consideration for employment based on objective work-related criteria and without regard for the following: age, disability, ethnic origin, gender, marital status, race, religion, responsibility of dependents, sexual orientation, or gender identity or other characteristics in accordance with the applicable governing laws.