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Weekend Chemistry Jobs in Riverside, CA (NOW HIRING)

Certified Group

Analytical Chemist

Tustin, CA

BA/BS degree in Chemistry related field, or 2-3 year of relevant work experience * Knowledge of GMP GLP GDP * Strong relevant quantitative skills * High level of computer skills and familiarity with ...

LGM Pharma, LLC

QC CHEMIST III

Irvine, CA · On-site

$30 - $35/hr

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

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 ...

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 ...

WINONICS

Lamination Operator - 3rd Shift

Brea, CA · On-site

$20 - $25/hr

Support overtime and weekend production schedules as needed Job Qualifications * High school diploma or equivalent required; technical training in plating, chemistry, or manufacturing preferred

WINONICS

Lamination Operator - 3rd Shift

Brea, CA · On-site

$20 - $25/hr

Support overtime and weekend production schedules as needed Job Qualifications * High school diploma or equivalent required; technical training in plating, chemistry, or manufacturing preferred

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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 Jun 13, 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 are the key skills and qualifications needed to thrive as a Weekend Chemistry Lab Technician, and why are they important?

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

Analytical Chemist

Certified Group

Tustin, CA

Other

Medical, Dental, Life, Retirement

Posted 7 days ago

Job description

Certified Group is committed to delivering expert solutions and quality testing our customers can feel confident in - on time, every time - so the world can trust in what it consumes.  As a leading North American provider of laboratory testing, regulatory consulting, and certification & audit services, Certified Group includes Food Safety Net Services (FSNS), FSNS Certification & Audit, Certified Laboratories, EAS Consulting Group, and Labstat International Inc. Certified Group provides analytical testing and regulatory guidance services in the food & beverage, dietary supplements & NHP, cosmetics, OTC, personal care, tobacco, nicotine, cannabis, and hemp industries.

We have embarked on an important journey to unify and strengthen our culture by living these core values: Start with the Customer, Drive to Deliver, Commit to Safety and Quality, and Believe in the Team - including believing in you.

We are currently looking for an Chemist to join our growing team!

ESSENTIAL RESPONSIBILITIES

  • Perform analysis using one or more of the following techniques: GC, LCMS, GCMS, GC, HPLC, ICP/MS, ICP-OES, UV-VIS, FTIR, Titration, Gravimetric Analysis, or other techniques, as appropriate in a timely fashion maintaining a high level of quality.
  • Prepare analytical standards.
  • Perform daily balance, temperature and monthly pipette verification.
  • Perform sample processing in accordance with standard operating procedures.
  • Perform sample preparation.
  • Successfully participate in proficiency testing.
  • Calibrate and maintain analytical instruments.
  • Participate in relevant ISO QA/QC activities and documentation thereof
  • Prepare standards and maintain inventory.
  • Effectively participate in proficiency testing as required by ISO17025 and other accrediting/certifying bodies.
  • Maintain analytical and quality records as required for accreditation/certification and related to analytical work and instrument maintenance.
  • Submit accurate and timely reports based on the analysis.
  • Identify results that require further investigation or discussion with the Department Manager/Supervisor.
  • Participate in OOS investigation and/or CAPA when necessary.
  • Plan and perform work to meet deadlines and expected turn-around times.
  • Perform routine diagnosis, troubleshooting and maintenance of equipment.
  • Learn new techniques and technologies as appropriate.
  • Works effectively with other departments.
  • Provide training to new chemists when needed. 
  • Other duties as required.

MINIMUM QUALIFICATIONS

  • BA/BS degree in Chemistry related field, or 2-3 year of relevant work experience
  • Knowledge of GMP GLP GDP 
  • Strong relevant quantitative skills
  • High level of computer skills and familiarity with data acquisition software
  • Strong trouble-shooting and problem-solving skills
  • High level of computer literacy
  • Good conceptual basis in analytical chemistry
  • Proven ability to perform standard chemical laboratory techniques 

Benefits: 

  • Progressive 401k Retirement Savings Plan
  • Employer Paid Short- Term and Long-Term Disability, and Life Insurance
  • Group Medical
  • Tuition Reimbursement
  • Flexible Spending Accounts
  • Dental
  • Paid Holidays and Time Off
  • Many positions which qualify for the company bonus program

Certified Group values diversity in its workforce. The company is firmly committed to a policy of Equal Opportunity and will administer its policies in a manner that treats each employee and applicant for employment on the basis of merit. Certified Group will take affirmative action to seek out qualified applicants without regard to race, color, religion, sex, national origin, age, handicap, or veteran status.

Schedule: Monday - Friday,  8:00AM - 5:00PM

 

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