Scientist Jobs at Quest Diagnostics with Visa Sponsorship
Scientist jobs at Quest Diagnostics span clinical research, laboratory operations, and diagnostic development across a nationwide network of labs. Quest has a consistent track record of sponsoring international scientists across multiple visa categories, making it a viable target for candidates at various stages of their U.S. work authorization journey.
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Clinical Lab Scientist I
Location: San Juan Capistrano, CA
Work Schedule: Tuesday to Saturday, 2:00PM to 10:30PM
Department: Special Chemistry
Pay range: $40.00 - $56.44 / hour; employee may be eligible to receive shift differential of 10% for some or all hours worked on second shift and 15% for some or all hours worked on third shift. Additional details on shift differential will be provided if an offer is extended.
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!
This position is accountable for performing clinical laboratory testing, following all applicable policies and procedures.
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.
- Independently performs moderate to highly complex clinical tests following the required procedures and policies. Performs newly introduced tests to the laboratory that require defined skills.
- Prepares and oversees the preparation of reagents or media as well as stock solutions, standards, and controls. Tests new reagents or controls and evaluates their usefulness based on standard criteria.
- Determines the acceptability of specimens for testing according to established criteria in testing procedures.
- Determines calculated results utilizing testing data by means of manual or computerized procedures.
- Accurately enters results of testing. Checks the computer review reports to monitor accurate reporting of laboratory results. Adheres to analytical schedules to maintain turnaround times of results.
- Evaluates the acceptability of routine and complex analyses prior to releasing patient reports. Recognizes and takes appropriate action in response to critical values or unusual or unexpected results, and documents action taken.
- Responsible for preventative maintenance, troubleshooting and calibration of laboratory equipment.
- Evaluates the results of instrument performance checks. Performs linearity, accuracy and precision checks as required.
- Performs Quality Control and calibrations with the appropriate frequency and evaluates results, to determine acceptability of result release.
- Selects and evaluates control materials using established criteria. Initiates a corrective action process whenever test systems do not perform according to the established criteria.
- Accurately performs and records proficiency testing.
- Demonstrates the ability to detect and correct technical and operational problems. Notifies the supervisor, and contacts manufacturer or field service support for additional assistance, if necessary.
- Ensures accurate tracking and labeling of reagents and supplies.
- Consistently maintains a safe and neat work area.
- Demonstrates effective two-way communication with staff, immediate manager, suppliers, internal and external customers, via meetings, written and verbal interactions, to create an informed positive environment.
- Actively participates in staff meetings, and in Quality Improvement meetings as assigned.
- Takes on additional business-related responsibilities or projects, as delegated by the Supervisor or Manager. This may include but not be limited to evaluation of new techniques and procedures in terms of personnel and requirements, method comparison, cost analysis, establishment of reference ranges, writing and revising technical procedures, and evaluation of productivity and key results measures.
- Responsible for following all required procedures, practices and related guidelines as provided in company policy and associated procedures for safety, environmental, and infection control.
- Collects and dispose of waste in proper receptacles.
- Demonstrates a high level of integrity and honesty in maintaining confidentiality.
- Provides direct and constant supervision to unlicensed staff as necessary and trains staff in proper performance of both routine and complex procedures. Supports Training Programs, where applicable.
- Maintains professional growth and development through continuing education. The continuing education must meet the education requirements for California state licensure.
- Answers phones, transfers, or takes accurate messages.
- Complies with all health and safety policies, procedures, and practices. Required to use personal protective equipment.
- Other duties as assigned. This is not an exhaustive list of all duties and responsibilities, but rather a general description of work performed by the position.
Required Work Experience:
Zero to three year’s direct experience in a laboratory setting.
Physical and Mental Requirements:
The normal performance of duties may require lifting and carrying objects. Objects in the weight range of 1 to 10 pounds are lifted and carried frequently; objects in the weight range of 11 to 25 pounds are lifted and carried occasionally and objects in the weight range of 26 to 50 pounds are seldom lifted and carried. Objects exceeding 50 pounds are not to be lifted or carried without assistance.
- Ability to perform repetitive tasks. Frequent simple grasping, reaching and fine manipulation.
- Ability to sit and/or stand for long periods.
- Have good eye and hand coordination.
- Testing for color blindness will be required upon hiring or transfer into technical functions requiring detection of, or rating of intensity of colors (e.g., Fluorescent microscopy reading).
Skills:
- Proficiency in Microsoft Office Application (Word, Excel, Outlook)
- Strong typing skills desirable.
- Other automation skills helpful.
Education:
Bachelor’s Degree Medical technology or other life or physical sciences from an accredited college or university. (Required)
Licenses and Certifications:
Current State Clinical Laboratory Scientist license if necessary (e.g. California) (Required)
Qualified applicants with arrest or conviction records will be considered for Employment in accordance with the following laws if applicable, the Los Angeles County Fair Chance Ordinance for Employers, the Los Angeles' Fair Chance Initiative for Hiring Ordinance, the San Francisco Fair Chance Ordinance, and the California Fair Chance Act.
Quest believes that conviction records may have a direct, adverse, and negative relationship to the following job duties: accessing company property, information, assets, and products including sensitive information; accessing customer data or confidential information, and partnering and regularly working with or supervising other Quest employees and interacting with Quest customers.
MLS, Medical Laboratory Scientist, Medical Lab Scientist, Med Tech, Medical Technologist, CLS, Clinical Lab Scientist.
See all 245+ Scientist Jobs at Quest Diagnostics
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Get Access To All JobsTips for Finding Scientist Jobs at Quest Diagnostics
Align your degree to the role posting
Quest Diagnostics Scientist postings typically require a degree in a specific scientific discipline, such as biochemistry, microbiology, or molecular biology. A general science degree paired with unrelated experience often fails the specialty occupation standard USCIS applies to H-1B petitions.
Target lab-specific openings over corporate roles
Quest operates regional and reference laboratories with distinct hiring needs. Laboratory-based Scientist postings at these facilities tend to move faster and carry clearer sponsorship precedent than roles in corporate or administrative functions, which are harder to classify under specialty occupation criteria.
Verify your OPT timeline before applying
If you're on F-1 OPT, confirm your STEM extension eligibility before starting interviews at Quest. The H-1B cap-gap provision protects your status if your OPT expires after April 1, but only if your employer files before the deadline.
Use Migrate Mate to filter verified sponsoring roles
Not every Quest Diagnostics Scientist posting will result in sponsorship. Use Migrate Mate to browse roles where Quest has an active sponsorship history, so you're applying to positions where international candidates have genuinely been supported through the process.
Ask about PERM timing during the offer stage
Quest sponsors Green Cards for Scientist roles through PERM-based EB-2 and EB-3 pathways. During offer negotiations, ask directly whether the role is eligible and what the typical timeline looks like from hire to PERM filing, since backlogs vary significantly by nationality.
Prepare documentation for TN eligibility if applicable
Canadian and Mexican nationals applying for Scientist roles at Quest may qualify for TN status, which requires no USCIS petition and no lottery. Confirm your specific job title maps to a qualifying TN category under the USMCA before your interview, as titles vary across Quest's lab network.
Frequently Asked Questions
Does Quest Diagnostics sponsor H-1B visas for Scientists?
Yes, Quest Diagnostics sponsors H-1B visas for Scientist roles. Sponsorship is most consistent for laboratory-based positions where the degree requirement is specific to a scientific field, satisfying USCIS specialty occupation standards. Roles requiring only a general bachelor's degree in any field are less likely to qualify. Confirming the degree requirement in the job posting before applying helps filter sponsorship-viable openings.
How do I apply for Scientist jobs at Quest Diagnostics?
Applications go through Quest Diagnostics' careers portal. For international candidates, Migrate Mate is the most efficient way to identify which open Scientist roles at Quest have an active sponsorship history before you apply. Tailoring your resume to match the specific scientific discipline listed in the posting, rather than submitting a general application, significantly improves your chances of moving through screening.
Which visa types does Quest Diagnostics commonly use for Scientist roles?
Quest Diagnostics sponsors Scientist roles across several visa categories, including H-1B, F-1 OPT, F-1 CPT, TN visa, and Green Card pathways through EB-2 and EB-3 classifications. H-1B is the most common route for full-time hires. TN visa is available to Canadian and Mexican nationals in qualifying scientific occupations. Green Card sponsorship typically follows after an initial period of employment.
What qualifications does Quest Diagnostics expect for sponsored Scientist roles?
Most Scientist postings at Quest require a bachelor's or master's degree in a specific discipline such as clinical laboratory science, biochemistry, microbiology, or a closely related field. Laboratory certifications, such as ASCP, strengthen your profile for clinical roles. Roles at the senior scientist level typically expect several years of hands-on laboratory experience, and some positions require familiarity with CAP or CLIA regulatory environments.
How long does the sponsorship process take for a Scientist role at Quest Diagnostics?
For H-1B, the process runs on an annual cycle. USCIS opens registration in March, with an October 1 start date for selected petitions. Premium processing can reduce the USCIS adjudication window to around 15 business days once a petition is filed. PERM-based Green Card sponsorship takes longer, often two or more years from filing to approval, with additional time depending on your country of birth and the applicable visa backlog.