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Laboratory Assistant

Harken Research
Pasadena, CA Part Time
POSTED ON 7/28/2026
AVAILABLE BEFORE 11/24/2026

Company Description

Harken Research is an ISO17025 accredited testing laboratory located in Pasadena with two core business units: consumer product testing and pharmaceutical contract research. Within the consumer product testing unit dietary supplements, food, and cosmetics are the focus – with additional testing services catering to other industries. Our strengths are our ability to offer customized testing and problem solving to address client needs; excellent customer service; and quick turnaround times.

Summary

We're looking for a dependable, organized, and motivated Part-Time Laboratory Assistant to support our laboratory operations. This position is ideal for someone interested in laboratory science or looking to gain hands-on experience in an analytical chemistry laboratory. The position is approximately 20 hours per week, with an ideal schedule of 4 hours per day, Monday through Friday, although some flexibility may be available based on the candidate's schedule and laboratory needs.

Duties

The Laboratory Assistant will support the laboratory with a variety of operational, administrative, and facility-related tasks, including:

  • Assist with sample intake and accessioning
  • Enter client orders and sample information into the laboratory information system
  • Assist with general administrative and laboratory support duties as needed
  • Fold and discard empty cardboard boxes
  • Move sample retention bins between the intake area and the main laboratory
  • Organize and maintain the sample retention room
  • Dispose of expired retained samples according to laboratory procedures
  • Clean and organize laboratory benches and common work areas
  • Restock laboratory consumables and supplies
  • Monitor inventory levels and submit purchase requests
  • Register new analytical standards and reagents in the Chemical ID Master List
  • Check and collect mail from downstairs mailboxes
  • Move argon gas cylinders between storage locations using proper safety procedures
  • Dispose of acid and solvent waste into designated waste containers
  • Aspirate liquid from HPLC vials prior to disposal
  • Transport laboratory waste containers to the designated disposal area
  • Defrost laboratory freezers according to schedule
  • Move delivered laboratory supplies and equipment from downstairs to the laboratory
  • Perform daily laboratory verification tasks, including:
  • Temperature monitoring
  • Balance verification
  • Assist chemists and laboratory staff with additional projects as needed

Qualifications

  • High school diploma or equivalent required
  • College coursework in chemistry, biology, biochemistry, or a related science is preferred but not required
  • Previous laboratory experience is a plus but not required
  • Strong organizational skills and attention to detail
  • Comfortable using computers and learning new software
  • Ability to follow written procedures accurately
  • Reliable, punctual, and dependable
  • Ability to lift up to 50 pounds and safely move laboratory supplies and equipment
  • Comfortable standing, walking, and performing light physical work throughout the day

Pay: $19.00 - $21.00 per hour

Experience:

  • Laboratory: 1 year (Required)

Ability to Commute:

  • Pasadena, CA 91105 (Required)

Ability to Relocate:

  • Pasadena, CA 91105: Relocate before starting work (Required)

Work Location: In person

Salary : $19 - $21

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