Senior Laboratory Technician – Confirmations, 3rd Shift

Viltis; Santa Rosa (CA); On-site; USD 34,440 - 48,216; Full time

Job summary

Viltis is seeking a Senior Laboratory Technician – Confirmations in Santa Rosa, CA to support analytical operations on the 3rd shift. You will review GC/MS and LC/MS/MS data, ensure accurate documentation, and enter results into the LIS for final review and certification.

The ideal candidate holds a bachelor’s degree in chemistry or a related field and has at least one year of experience in an analytical lab.

Qualifications

• Bachelor’s degree in chemistry or a related field.
• At least one year in an analytical laboratory.
• Experience with SOPs and controlled documentation.
• Ability to safely handle biological samples and chemicals.
• Strong attention to detail and data integrity.
• Good written and verbal communication.
• Ability to work third shift and in a fast-paced lab.

Responsibilities

• Review and process GC/MS and LC/MS/MS data for accuracy.
• Maintain accurate documentation and chain of custody.
• Enter results into the Laboratory Information System for final review.
• Identify data discrepancies and escalate issues promptly.
• Follow all laboratory safety and quality procedures.
• Support additional lab activities as needed.

Skills

SOP Adherence

Data Review

Documentation

Attention to Detail

Safety

Team Collaboration

Independence

Education

Bachelor’s degree in chemistry or related field

Tools

LIS (Laboratory Information System)

Job description

Scientific Santa Rosa, California Contract Jul 23, 2026 Senior Laboratory Technician – Confirmations, 3rd Shift

Location: Santa Rosa, CA 95403

Schedule: 3rd Shift

Employment Type: Contract

Position Overview

Viltis is seeking a Senior Laboratory Technician – Confirmations to support a client’s analytical laboratory operations. This position is responsible for reviewing and processing analytical data generated through GC/MS and LC/MS/MS testing, maintaining accurate documentation, and ensuring results are entered into the laboratory information system for final review and certification.

The ideal candidate has a bachelor’s degree in chemistry or a related scientific discipline and at least one year of experience working in an analytical laboratory.

Responsibilities

• Read, understand, and follow written Standard Operating Procedures.
• Correctly identify analyzed samples and verify the accuracy of sample sequences for each batch.
• Process acquired instrument data and generate appropriate analytical reports.
• Conduct the initial review of GC/MS and LC/MS/MS analytical data in accordance with assay-specific procedures.
• Transcribe or upload test results into the Laboratory Information System for final review and certification.
• Maintain complete and accurate chain-of-custody and batch documentation.
• Identify data discrepancies, instrument issues, or other emerging challenges and promptly escalating them to laboratory supervisors.
• Follow laboratory quality, safety, and documentation requirements.
• Safely handle biological specimens, chemicals, laboratory equipment, and analytical instruments.
• Maintain and promote a safe and healthful working environment for all laboratory personnel.
• Support additional laboratory activities as assigned.

Required Qualifications

• Bachelor’s degree in chemistry, analytical chemistry, biochemistry, or a related scientific field.
• At least one year of experience working in an analytical laboratory.
• Experience following laboratory SOPs and maintaining controlled documentation.
• Ability to work safely with biological specimens, chemicals, equipment, and analytical instruments.
• Strong attention to detail and the ability to accurately review and document analytical data.
• Effective written and verbal communication skills.
• Ability to work independently and collaboratively in a fast-paced laboratory environment.
• Availability to work the designated third-shift schedule.

Preferred Qualifications

• Previous experience reviewing GC/MS or LC/MS/MS analytical data.
• Experience working in a regulated, clinical, toxicology, pharmaceutical, or high-throughput testing laboratory.
• Familiarity with Laboratory Information Systems.
• Experience with chain-of-custody documentation and laboratory quality systems.

About Viltis

Viltis partners with life sciences, pharmaceutical, biotechnology, and medical device organizations to provide specialized scientific, quality, regulatory, clinical, and engineering talent.

Viltis is an equal opportunity employer. Employment decisions are made without regard to race, color, religion, sex, national origin, age, disability, veteran status, or any other status protected by applicable law.