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Posted August 23, 2026

Pesticides Analytical Chemist - LC-MS/MS & GC-MS

Optiq Health Labs
Santa Ana, CA, US Full Time

Job Description

Job Description

Key Responsibilities

  • Analyze cannabis compliance & R&D samples for pesticide testing.
  • Prepare calibration standards, quality control samples, and analytical batches.
  • Perform instrument calibration, tuning, preventative maintenance, and routine troubleshooting.
  • Accurately document testing activities in laboratory notebooks, instrument logs, worksheets, and laboratory systems.
  • Maintain assigned laboratory instruments and equipment in a state of readiness.
  • Follow established SOPs, analytical methods, quality requirements, and laboratory safety procedures.
  • Maintain a clean, organized, and inspection-ready laboratory workspace.

Required Qualifications

  • Bachelor’s degree in Chemistry, Biochemistry, Chemical Engineering, Biology, or a related scientific field. Relevant analytical laboratory experience may be considered in place of formal education.
  • Minimum 2 years of analytical laboratory experience, preferably in a regulated testing environment.
  • Demonstrated hands-on experience operating LC-MS/MS and/or GC-MS systems.
  • Ability to recognize abnormal analytical results and troubleshoot potential instrument, calibration, preparation, or method-related issues.
  • Strong attention to detail and ability to maintain complete and accurate laboratory records.
  • Ability to follow controlled procedures and work independently while meeting laboratory turnaround requirements.

Preferred Qualifications

  • Experience with Shimadzu LC-MS/MS or GC-MS instrumentation.
  • Experience with SCIEX mass spectrometry platforms and software.
  • Experience working in an ISO/IEC 17025-accredited or similarly regulated laboratory.
  • Experience performing instrument maintenance and advanced troubleshooting.

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