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Scientist (Mass Spectrometry)

Quest Diagnostics Incorporated
flex time, 401(k)
United States, California, San Juan Capistrano
Oct 11, 2025
Job Description

ay Range: $85,000.00 - $105,000.00 / year

Salary offers are based on a wide range of factors including relevant skills, training, experience, education, and, where applicable, certifications obtained. Market and organizational factors are also considered. Successful candidates may be eligible to receive annual performance bonus compensation.

Benefits Information:

We are proud to offer best-in-class benefits and programs to support employees and their families in living healthy, happy lives. Our pay and benefit plans have been designed to promote employee health in all respects - physical, financial, and developmental. Depending on whether it is a part-time or full-time position, some of the benefits offered may include:

* Day 1 Medical, supplemental health, dental & vision for FT employees who work 30+ hours

* Best-in-class well-being programs

* Annual, no-cost health assessment program Blueprint for Wellness

* healthyMINDS mental health program

* Vacation and Health/Flex Time

* 6 Holidays plus 1 "MyDay" off

* FinFit financial coaching and services

* 401(k) pre-tax and/or Roth IRA with company match up to 5% after 12 months of service

* Employee stock purchase plan

* Life and disability insurance, plus buy-up option

* Flexible Spending Accounts

* Annual incentive plans

* Matching gifts program

* Education assistance through MyQuest for Education

* Career advancement opportunities

* and so much more!

Complete oversight of BME operations for large, complex sites and/or multiple sites to ensure service program efficiency and to satisfy the equipment support needs of the company.

The purpose of the BME Sr. Manager position is to develop, coordinate, and expand the BME program as necessary to ensure all aspects of service (internal and external) for all lab instrumentation and general lab equipment satisfy the quality and regulatory requirements and service needs for each lab, enabling operations to run efficiently, profitably, and with excellent quality.

The Sr. Manager has more experience than

At Quest Diagnostics, our Scientists will be responsible for supporting the development, validation and transfer of both FDA and non-FDA analytical methods for the quantification of various analytes (i.e. small molecules) by GC-MS, LC-MS/MS.This professional will plan, prepare, conduct and record complex bench level chemical/biochemical experiments, reports and analysis of results. Activities may be focused on individual projects or assignments as a member of a project team which may include project leadership duties.

This person will work within the R&D Mass Spectrometry group developing clinical mass spec- based assays for diagnostics testing.



Responsibilities:
  • Plans, conducts, performs and executes laboratory experiments for GC-MS, LC-MS/MS for both defined and novel protocols. Reports status of assigned projects by preparing detailed reports and documentation that critically interprets and summarizes results from complex experiments within a specific project or technology area.
  • Effectively utilizes and applies advanced methods by maintaining knowledge of technological developments that may assist in the completion of an assignment or lead to novel ideas by reading current literature and attending scientific meetings and training.
  • The individual will be expected to generate, compile, analyze and evaluate analytical data for technical reports including regulatory submissions, SOPs, validation reports. The candidate will be encouraged to submit abstracts for posters/presentations at scientific meetings.
  • Identifies problems, investigates alternatives and recommends possible courses of action.
  • Able to troubleshoot and resolve technical difficulties
  • Ability to perform and prioritize multiple tasks/projects
  • Other responsibilities include working with infectious materials, supporting and complying with the company hazard waste handling practices.


Qualifications:

Qualifications:

The ideal candidate will have experience or strong understanding of various laboratory techniques including, but not limited to: sample preparation & extraction (i.e. precipitation, solid phase extraction) analyte quantitation using isotopically-labeled internal standards, or familiarity with HPLC and mass spectrometry. Prior experience in enzymology/enzyme assay development, compound optimization, operation and troubleshooting of various GC-MS, LC-MS/MS platforms is a plus.

A successful candidate will be a self-starter capable of performing experimental work. This professional will have a strong foundation in technical skills and has the ability to work independently and in collaboration with other team members - should be familiar with common data processing software (Excel, R, etc.) and should be able to present data in a meaningful manner.

Education:

  • BS with 2-3 years of related experience
  • MS with 1 year of related experience
  • PhD and one year Post Doc experience, or related.
  • Experience working in a biochemical genetics and chemistry laboratory setting is preferred.


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Quest Diagnostics honors our service members and encourages veterans to apply.

While we appreciate and value our staffing partners, we do not accept unsolicited resumes from agencies. Quest will not be responsible for paying agency fees for any individual as to whom an agency has sent an unsolicited resume.

Equal Opportunity Employer: Race/Color/Sex/Sexual Orientation/Gender Identity/Religion/National Origin/Disability/Vets or any other legally protected status.
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