Analytical Chemist I - Analytical Toxicology Laboratory

Analytical Chemist I - Analytical Toxicology Laboratory
Scientific Pomona Contract Aug 19, 2026

Location: Pomona, CA
Position Type: Full-Time, 6-Month Contract
Industry: Diagnostics / Analytical Toxicology

Viltis is seeking a motivated Chemist I to support one of our clients at their analytical toxicology laboratory in Pomona, CA
. This is a six-month contract opportunity ideal for an early-career scientist looking to gain hands‑on experience in analytical testing,
LC-MS/MS
, and regulated laboratory operations.

The Chemist I will perform routine sample preparation, analytical testing, data review, and documentation in support of toxicology studies. The successful candidate will work in a fast-paced laboratory environment alongside experienced scientists and laboratory professionals.

• Perform routine sample preparation, extraction, and sample processing.
• Conduct analytical testing using LC-MS/MS instrumentation
  .
• Prepare reagents, standards, controls, calibration solutions, and sample dilutions.
• Perform accurate and precise pipetting, including handling microliter volumes.
• Execute analytical methods according to approved procedures, protocols, and laboratory requirements.
• Review analytical data for accuracy, completeness, and compliance with established requirements.
• Maintain accurate laboratory records, notebooks, and electronic documentation.
• Assist with routine instrument maintenance, troubleshooting, and performance checks.
• Participate in laboratory investigations, deviations, and corrective actions as assigned.
• Support laboratory organization, inventory management, and general housekeeping activities.
• Follow all applicable safety, GMP, GLP, and laboratory procedures.
• Perform duties in compliance with established business policies and quality requirements.
• Support the development, implementation, and effectiveness of Quality Management Systems in accordance with applicable ISO, FDA, and other regulatory requirements
  .

• Bachelor's degree in Chemistry, Biochemistry, Analytical Chemistry, Toxicology
  , or a related scientific discipline.
• 0-2 years of analytical laboratory experience
  .
• Basic understanding of chromatographic and mass spectrometry techniques.
• Strong pipetting skills, including accurate and precise handling of microliter volumes.
• Experience preparing standards, controls, reagents, and sample dilutions.
• Strong attention to detail and organizational skills.
• Ability to follow written procedures and maintain accurate laboratory documentation.
• Proficiency with Microsoft Office applications.

• Experience in a toxicology, pharmaceutical, environmental, diagnostics, or CRO laboratory
  .
• Hands-on experience with LC-MS/MS systems
  .
• Knowledge of GMP, GLP, or other regulated laboratory environments
  .

• Ability to work in a laboratory environment for extended periods.
• Ability to lift up to 25 pounds.
• Ability to wear required personal protective equipment (PPE).

This position offers the opportunity to:

• Gain hands‑on experience in analytical toxicology
  .
• Work directly with LC-MS/MS and modern analytical instrumentation
  .
• Build experience within a regulated laboratory and Quality Management System.
• Work alongside experienced chemists and laboratory professionals.
• Strengthen analytical testing, sample preparation, documentation, and laboratory troubleshooting skills.