Field Service Engineer - Mass Spectrometry (SCIEX & Waters)

EquipNet helps the largest manufacturers in the world to buy, sell, and manage their surplus capital equipment. 

We're seeking an experienced Field Service Engineer with 5+ years of hands-on expertise servicing SCIEX and Waters mass spec systems, including TOF instrumentation, to provide remote and on-site support to biotech, pharma, chemical, and environmental labs across the region.

Key Responsibilities

• Deliver expert remote and on-site technical support for LC-MS and GC-MS instrumentation, with a primary focus on SCIEX and Waters mass spec and TOF systems, ensuring maximum performance and uptime. 

• Diagnose and troubleshoot hardware, software, and application-related issues across mass spec platforms, including SCIEX and Waters.

• Perform preventative maintenance, repairs, and calibrations on SCIEX and Waters instrumentation to meet manufacturer specifications and regulatory standards. 

• Lead installation, qualification (IQ/OQ/PQ), and validation of new LC-MS, GC-MS, and TOF systems. 

• Optimize instrument performance through advanced tuning, method troubleshooting, and workflow improvements on SCIEX and Waters platforms. 

• 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, representing EquipNet's technical expertise and commitment to client success. 

• Partner with engineering, customer service, and technical support teams to expedite resolution of complex, high-stakes issues. 

• 
  5+ years of hands-on field service experience with SCIEX and Waters mass spectrometry systems, including TOF instrumentation, required. 

• Advanced expertise in LC-MS and GC-MS systems: hardware troubleshooting, maintenance, and software configuration. 

• Proven ability to diagnose complex failures independently and implement effective solutions quickly, often under time pressure in live lab environments. 

• Strong familiarity with chromatography data systems (CDS) and mass spectrometry software, particularly SCIEX and Waters platforms (e.g., Analyst, Mass Lynx). 

• 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. 

• Must be local to Cerritos, CA.
  

Experience & Education

• Associate's or Bachelor's degree in Analytical Chemistry, Engineering, Instrumentation, Biomedical Engineering, or related field (or equivalent hands-on experience). 

• 5+ years of experience servicing SCIEX and Waters mass spec/TOF instrumentation in biotech, pharma, chemical, or environmental industries. 

• Knowledge of regulatory standards (GLP/GMP, ISO, FDA) is a plus. 

• Proficiency with PC operating systems (Windows) and Microsoft Office Suite. 

• Valid driver's license and ability to travel up to 25% overnight.

• Salary Range: $85,000 - $115,000 plus bonus/variable component.

• 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