Scientist Jobs at Quest Diagnostics with Visa Sponsorship
Scientist roles 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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INTRODUCTION
The R&D Toxicology Scientist will develop, plan, conduct, and record results from complex experiments in clinical, forensics, or environmental toxicology. Often includes solid phase extraction of urine, oral fluid, serum, or whole blood specimens for qualitative or quantitative analysis on LC-MS/MS platforms. The scientist will prepare reports and analysis of results as related to the product, process, or assay. Activities may be focused on individual projects or assignments as a member of a project team which may include project leadership duties.
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.
Responsibilities
- Perform laboratory experiments following defined protocols and company procedures. Report status of assigned projects through the preparation of detailed reports and documentation that summarize experimental results.
- Work within established parameters on individual assignments, on project teams for longer-term projects and as a technical leader to Associate Scientists.
- Identify problems, investigate alternatives and recommend possible courses of action.
- Maintain knowledge of technological developments that may assist in the completion of an assignment or lead to new products, processes or procedures by reading current literature.
- Effectively utilize and apply advanced methods or technologies.
- Contribute ideas for new product development typically within existing markets.
- Responsibilities include working with infectious materials, supporting and complying with the company hazard waste handling practices.
- 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.
BASIC QUALIFICATIONS
- Requires at least 6 (six) years of extensive laboratory/industry experience and significant demonstration of capabilities for a candidate with a Bachelor's degree or at least 4 (four) years of relevant industrial experience with a Master's degree, or a Ph.D. with thesis.
- Liquid chromatography tandem mass spectrometry (LC-MS/MS) operating experience.
- Chromatographic data processing/review.
- Biological sample handling and pipetting.
- Experience in developing or validating LC-MS/MS assays following CLSI, ANSI/ASB, CAP, NYSDOH, or ISO regulations.
PHYSICAL AND MENTAL REQUIREMENTS
- Frequently required to use hands to finger, handle or feel objects, tools or controls, and reach with hands and arms in the operation of equipment or instruments located in the work environment.
- Frequently required to sit and stand; and is occasionally required to walk and stop.
- Frequently lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
- Specific vision abilities required by this job include close vision and depth perception.
KNOWLEDGE
- Knowledgeable in the use of common laboratory equipment and safe chemical handling.
- Requires a thorough knowledge of related products and technologies gained through developmental experience in an academic or industrial setting.
SKILLS
- Ability to read and interpret documents such as professional journals, operating instructions, and procedure manuals.
- Ability to write complete reports and correspondence.
- Ability to speak effectively in one-on-one and small group situations.
- Ability to apply mathematical concepts to problem-solving situations.
- Ability to apply mathematical operations to such tasks as frequency distribution, determination of test reliability and validity, analysis of variance and correlation techniques.
- Ability to apply commonsense understanding to carry out instructions furnished in written, oral, or diagram form.
- Ability to deal with problems involving several variables in a variety of situations.
Education
Bachelor’s Degree (Required)
Master’s Degree
Doctoral Degree
Equal Opportunity Employer: Race/Color/Sex/Sexual Orientation/Gender Identity/Religion/National Origin/Disability/Vets or any other legally protected status.

INTRODUCTION
The R&D Toxicology Scientist will develop, plan, conduct, and record results from complex experiments in clinical, forensics, or environmental toxicology. Often includes solid phase extraction of urine, oral fluid, serum, or whole blood specimens for qualitative or quantitative analysis on LC-MS/MS platforms. The scientist will prepare reports and analysis of results as related to the product, process, or assay. Activities may be focused on individual projects or assignments as a member of a project team which may include project leadership duties.
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.
Responsibilities
- Perform laboratory experiments following defined protocols and company procedures. Report status of assigned projects through the preparation of detailed reports and documentation that summarize experimental results.
- Work within established parameters on individual assignments, on project teams for longer-term projects and as a technical leader to Associate Scientists.
- Identify problems, investigate alternatives and recommend possible courses of action.
- Maintain knowledge of technological developments that may assist in the completion of an assignment or lead to new products, processes or procedures by reading current literature.
- Effectively utilize and apply advanced methods or technologies.
- Contribute ideas for new product development typically within existing markets.
- Responsibilities include working with infectious materials, supporting and complying with the company hazard waste handling practices.
- 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.
BASIC QUALIFICATIONS
- Requires at least 6 (six) years of extensive laboratory/industry experience and significant demonstration of capabilities for a candidate with a Bachelor's degree or at least 4 (four) years of relevant industrial experience with a Master's degree, or a Ph.D. with thesis.
- Liquid chromatography tandem mass spectrometry (LC-MS/MS) operating experience.
- Chromatographic data processing/review.
- Biological sample handling and pipetting.
- Experience in developing or validating LC-MS/MS assays following CLSI, ANSI/ASB, CAP, NYSDOH, or ISO regulations.
PHYSICAL AND MENTAL REQUIREMENTS
- Frequently required to use hands to finger, handle or feel objects, tools or controls, and reach with hands and arms in the operation of equipment or instruments located in the work environment.
- Frequently required to sit and stand; and is occasionally required to walk and stop.
- Frequently lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
- Specific vision abilities required by this job include close vision and depth perception.
KNOWLEDGE
- Knowledgeable in the use of common laboratory equipment and safe chemical handling.
- Requires a thorough knowledge of related products and technologies gained through developmental experience in an academic or industrial setting.
SKILLS
- Ability to read and interpret documents such as professional journals, operating instructions, and procedure manuals.
- Ability to write complete reports and correspondence.
- Ability to speak effectively in one-on-one and small group situations.
- Ability to apply mathematical concepts to problem-solving situations.
- Ability to apply mathematical operations to such tasks as frequency distribution, determination of test reliability and validity, analysis of variance and correlation techniques.
- Ability to apply commonsense understanding to carry out instructions furnished in written, oral, or diagram form.
- Ability to deal with problems involving several variables in a variety of situations.
Education
Bachelor’s Degree (Required)
Master’s Degree
Doctoral Degree
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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Get Access To All JobsTips for Finding Scientist Jobs at Quest Diagnostics Jobs
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.
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.
Scientist at Quest Diagnostics jobs are hiring across the US. Find yours.
Find Scientist at Quest Diagnostics JobsFrequently 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, and Green Card pathways through EB-2 and EB-3 classifications. H-1B is the most common route for full-time hires. TN 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.
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