Sr. Lab Technician

Lab Technician Sr. 3rd Shift
Location: Santa Rosa, CA

Seeking a detail-oriented Senior Laboratory Technician to support analytical laboratory operations by performing sample processing, data analysis, documentation, and quality assurance activities. The ideal candidate will have a Bachelor's degree in Chemistry or a related scientific discipline, experience in an analytical laboratory environment, and knowledge of GC/MS and LC/MS/MS instrumentation.

• Read, understand, and follow Standard Operating Procedures (SOPs) to ensure compliance with laboratory protocols.
• Verify sample identification and confirm the accuracy of sample sequencing for analytical batches.
• Operate analytical instruments and process acquired data using GC/MS and LC/MS/MS systems.
• Perform first-level review of analytical data in accordance with assay-specific SOPs.
• Generate analytical reports and ensure accurate transcription or upload of test results into the Laboratory Information Management System (LIMS/LIS).
• Maintain complete and accurate Chain of Custody (COC) documentation for all laboratory batches.
• Monitor data quality and identify discrepancies or deviations, escalating issues to supervisors as needed.
• Ensure compliance with laboratory safety procedures, quality standards, and regulatory requirements.
• Handle biological specimens, laboratory chemicals, reagents, and analytical equipment safely.
• Collaborate with laboratory staff and supervisors to maintain efficient workflow and timely sample processing.

• Bachelor's degree in Chemistry, Analytical Chemistry, Biology, or a related scientific field.
• Minimum of one year of experience in an analytical laboratory.
• Experience with laboratory instrumentation, preferably GC/MS (Gas Chromatography-Mass Spectrometry) and/or LC/MS/MS (Liquid Chromatography-Tandem Mass Spectrometry).
• Familiarity with Laboratory Information Systems (LIMS/LIS) and Chain of Custody documentation.
• Strong analytical, organizational, and problem-solving skills.
• Excellent attention to detail and documentation accuracy.
• Effective verbal and written communication skills.
• Ability to work independently during overnight (3rd shift) operations.
• Knowledge of laboratory safety procedures, Good Laboratory Practices (GLP), and quality control standards.
• Ability to safely handle biological specimens, chemicals, laboratory equipment, and analytical instruments.