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Mass Spec Jobs in California (NOW HIRING)

Superbeo

Test Technician

Hollister, CA · On-site

Mass spec (i.e., leak) testing in accordance with written procedures such as IPTs, ATP's, QTP's, and MP's. * Environmental testing, with support from higher level technicians in accordance with ...

Superbeo

Senior Test Technician

Hollister, CA · On-site

Mass spec (i.e., leak) testing in accordance with written procedures such as IPTs, ATP's, QTP's, and MP's. * Environmental testing, with support from higher level technicians in accordance with ...

Waters Corporation

Account Manager

San Francisco, CA · On-site

UPLC, Mass Spec, field sales and/or marketing is a plus * Overnight travel is required and international travel as needed Skills: * Action oriented and eager to achieve results * Sound communication ...

Waters Corporation

Account Manager

San Francisco, CA · On-site

UPLC, Mass Spec, field sales and/or marketing is a plus * Overnight travel is required and international travel as needed Skills: * Action oriented and eager to achieve results * Sound communication ...

Waters Corporation

Account Manager

San Francisco, CA · On-site

UPLC, Mass Spec, field sales and/or marketing is a plus * Overnight travel is required and international travel as needed Skills: * Action oriented and eager to achieve results * Sound communication ...

Waters Corporation

Account Manager

San Francisco, CA · On-site

UPLC, Mass Spec, field sales and/or marketing is a plus * Overnight travel is required and international travel as needed Skills: * Action oriented and eager to achieve results * Sound communication ...

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Mass Spec information

What is the difference between Mass Spec vs Analytical Chemist?

AspectMass SpecAnalytical Chemist
Required CredentialsTypically requires a degree in chemistry, biochemistry, or related field; specialized training in mass spectrometryRequires a degree in chemistry or related field; often includes training in various analytical techniques including mass spectrometry
Work EnvironmentLaboratories, research facilities, pharmaceutical or biotech companiesLaboratories, manufacturing plants, research institutions
Industry UsageUsed for detailed molecular analysis, identification, and quantification of compoundsUsed for broad chemical analysis, quality control, and method development

Mass Spectromists specialize in operating and maintaining mass spectrometry equipment for precise molecular analysis, while Analytical Chemists have a broader role in performing various chemical analyses, including mass spectrometry. Both roles often overlap in laboratory settings within the industry, but Mass Spectromists focus more on the instrumentation and data interpretation specific to mass spectrometry techniques.

What cities in California are hiring for Mass Spec jobs?

Cities in California with the most Mass Spec job openings:

Mass Spec jobs near you
Infographic showing various Mass Spec job openings in California as of August 2026, with employment types broken down into 6% Internship, 55% Full Time, 6% Part Time, 11% Temporary, and 22% Contract. Highlights an 100% In-person job distribution.

Experienced Mass Spectrometry Field Service Engineer

Cerritos, CA • On-site

EquipNet, Inc.
51 - 200 employees
Learn more about EquipNet, Inc.external

Full-time

Medical, Dental, Retirement, PTO

Re-posted 25 days ago

Job description

**Please note - selected candidate must be within commuting distance of our warehouse location in Cerritos - will also be traveling to client sites, and some remote work from home***
EquipNet is seeking a Mass Spec Field Engineering Specialist to provide expert technical support for a wide range of laboratory instrumentation, with a primary focus on LC-MS and GC-MS systems.
This role includes remote and on-site client support, ensuring optimal system performance, compliance, and customer satisfaction across leading biotech, pharmaceutical, chemical, and environmental laboratories.
 

Key Responsibilities
  • Deliver remote and on-site technical support for LC-MS and GC-MS instrumentation, ensuring maximum performance and uptime.
  • Diagnose and troubleshoot hardware, software, and application-related issues on systems from SCIEX, Agilent, Thermo Fisher, Waters, Shimadzu, Bruker, and PerkinElmer.
  • Perform preventative maintenance, repairs, and calibrations to meet manufacturer specifications and regulatory standards.
  • Support the installation, qualification (IQ/OQ/PQ), and validation of new LC-MS and GC-MS systems.
  • Optimize instrument performance through tuning, method troubleshooting, and workflow improvements.
  • Provide technical training and guidance to laboratory personnel on instrument operation, maintenance, and best practices.
  • Maintain accurate service logs, compliance records, and documentation of all service activities.
  • Serve as a brand ambassador, promoting EquipNet’s technical expertise and commitment to client success.
  • Partner with engineering, customer service, and technical support teams to expedite complex problem resolution.
  • Extend support to additional platforms, including Hamilton Liquid Handlers and Becton Dickinson Flow Cytometry systems.

Required Skills & Qualifications
  • Five (5) plus years of hands-on experience servicing and repairing Sciex, Shimadzu, or Agilent mass spectrometry systems AND leadership/supervisory oversight in their previous role. (SCIEX highly preferred).
  • Ability to diagnose complex failures and implement effective solutions quickly.
  • Familiarity with chromatography data systems (CDS) and mass spectrometry software.
  • Excellent problem-solving, analytical, and communication skills.
  • Strong organizational skills with a focus on compliance, accuracy, and documentation.
  • Ability to work independently in client environments while maintaining a professional, service-oriented approach.

Experience & Education
  • Associate’s or Bachelor’s degree in Analytical Chemistry, Engineering, Instrumentation, Biomedical Engineering, or related field (or equivalent experience).
  • Hands-on experience with systems from SCIEX, Agilent, Thermo Fisher, Waters, Shimadzu, Bruker, and PerkinElmer
  • Experience with Hamilton Liquid Handlers and BD Flow Cytometry systems preferred.
  • Knowledge of regulatory standards (GLP/GMP, ISO, FDA) is a plus.
  • Proficiency with PC operating systems (Windows XP/7/10) and Microsoft Office Suite.
  • Valid driver’s license and ability to travel up to 25% overnight.

Compensation & Benefits
  • Salary Range: $75,000 - $110,000 plus bonus/variable component. (Range has some flexibility, dependent on experience) 
  • Comprehensive health and dental insurance
  • 401(k) plan with year-end employer contribution
  • Paid time off and holidays
  • Professional development opportunities, including training and certifications
  • Supportive, collaborative work environment with opportunities for advancement

 

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