Scientist (R&D Toxicology)

Scientist (R&D Toxicology) at Quest Diagnostics

Alert: Scammers may offer fake Quest jobs using LinkedIn and other platforms. Click here to learn more.

Skip to main content

Career areas

Phlebotomy Laboratory Specimen processing Drivers Transportation and logistics Customer Service Per diem and on call

Sales Technology Corporate Medical, scientific, and R&D Internships All jobs India based jobs

Who we are

Culture Benefits Upcoming events

What we do

Innovation and insights Start your career with Quest Veterans at Quest Job seeker resources

Job alerts Saved jobs My profile Current employees

Search

Search by Keyword

Search by Location

5 miles 15 miles 25 miles 35 miles 50 miles

Radius

Search

More: Impact Discover a role that empowers some of life's most important healthcare decisions.

Scientist (R&D Toxicology)

Apply Save roleSaved role

Category Medical, Scientific and R&D Location Chantilly, Virginia Job function Research and Development Job family Scientist

Shift Day Employee type Regular Full-Time Work mode On-site

Job DescriptionPay Range: $80,000.00 - $100,000.00 / yearSalary 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!The R&D Toxicology Scientist will develop, plan, conduct, and document results from complex experimental studies in clinical, forensic, or environmental toxicology. This role heavily features high-recovery sample preparation, including solid-phase extraction (SPE) of biological matrices such as urine, oral fluid, serum, or whole blood specimens, for qualitative and quantitative analysis on LC-MS/MS platforms. The scientist will analyze experimental data and author comprehensive technical reports correlating findings to product, process, or assay performance. Activities will span individual project ownership as well as collaborative participation on cross-functional teams, with opportunities to assume technical leadership and project coordination responsibilities.Responsibilities: Execute complex laboratory experiments in strict compliance with validated protocols, standard operating procedures (SOPs), and company guidelines. Systematically document project milestones through comprehensive technical reports and experimental summaries.Work effectively within established parameters on individual tasks, contribute actively to long-term project teams, and serve as a technical leader and advisor to Associate Scientists.Proactively identify experimental and analytical anomalies, investigate alternative methodologies, and recommend strategic, data-driven courses of action.Maintain a cutting-edge understanding of industry-relevant technological advancements and peer-reviewed scientific literature to continuously optimize laboratory processes, workflows, or procedures.Adeptly integrate and apply advanced analytical methods and next-generation instrumentation.Contribute innovative ideas and technical concepts for new product development, primarily targeting established clinical and diagnostic markets.Safely handle infectious biological specimens and hazardous chemical waste in rigorous alignment with environmental health, safety, and corporate waste disposal practices.Perform other professional duties as assigned to support the continuous evolution of R&D objectives (this is a general description of work and is not intended to be an exhaustive list of all responsibilities).Qualifications: Required Work Experience:Requires a Bachelor''s degree in a relevant scientific discipline with 5+ years of progressive laboratory or industry experience demonstrating significant analytical capabilities.Or a Master''s degree (MS) with 3-5 years of laboratory or industry experience.Or a Doctoral degree (PhD) with a thesis focused on related analytical methodologies and hands-on laboratory experience (suitable for candidates seeking an industry-based post-doctoral opportunity).Hands-on operational expertise and troubleshooting experience with Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) systems.Proficiency in chromatographic data processing, qualitative/quantitative review, and analysis software.Extensive experience with biological sample handling, micro-pipetting, and biofluid extraction techniques.Demonstrated experience developing or validating LC-MS/MS assays in compliance with strict regulatory frameworks, such as CLSI, ANSI/ASB, CAP, NYSDOH, or ISO regulations.Physical and Mental Requirements:Frequently required to utilize precise manual dexterity and fine motor skills to manipulate sensitive laboratory tools, pipettes, and advanced instrumentation, as well as reach with hands and arms.Frequently required to maintain seated or standing positions for extended periods, with occasional walking and stooping.Regularly lift and/or manipulate objects weighing up to 10 pounds, and occasionally up to 25 pounds.Must possess close visual acuity and depth perception required for precise specimen handling, system operations, and data observation.Knowledge:Thorough knowledge of safe chemical handling protocols, hazardous material safety protocols, and standard laboratory equipment.Deep conceptual and practical understanding of related products and analytical technologies, acquired through developmental experience in academic or industrial settings.Skills:Ability to read, critically analyze, and interpret highly technical documents, including peer-reviewed scientific journals, instrument operating manuals, and standard operating procedures (SOPs).Ability to draft comprehensive, professional technical reports, scientific protocols, and clear business correspondence.Ability to communicate complex technical concepts clearly and effectively in individual discussions and small-group collaborative settings.Ability to apply advanced mathematical and statistical concepts to analytical problem-solving.Ability to perform statistical calculations relevant to assay performance, such as frequency distributions, determination of assay reliability and validity, analysis of variance (ANOVA), and correlation techniques.Ability to apply rigorous, systematic logic to execute complex, multi-step instructions provided in written, oral, or diagrammatic formats.Ability to systematically isolate, troubleshoot, and resolve multi-variable technical issues in a dynamic laboratory environment.Education:Bachelor's Degree (Required)Master's DegreeDoctoral Degree (Preferred)67403Quest 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.

Share this job

Facebook X LinkedIn Email

Explore this location Explore

"I love working here because Quest has been my second family and second home. I''ve experienced a wholesome work environment, and good management."

• Quest Employee

Featured Jobs Recently Viewed Jobs Saved Jobs

Phlebotomist I Grand Rapids, Michigan 08/28/2026

Lab Assistant (Specimen Technician I) Miramar, Florida 08/28/2026

Lab Assistant (Specimen Technician I) Miramar, Florida 08/28/2026

No jobs have been saved.

No jobs have been saved.

What it's like to work here

Culture Our people contribute to fostering an inspiring and supportive workplace where we empower better health for our customers every day. Through our 11 Employee Business Networks (EBNs) employees can grow, connect, and contribute with professional development, mentorship, EBN program offerings, and community engagement. Each of our Quest Employee Business Networks is open to all employees. View more

Benefits We strive to ensure our people live a healthier lifestyle by offering programs and solutions that help you take care of yourself and those you love. Find out how our benefits give you everything you need to live your best life. View more

Corporate Social Responsibility Report We''re committed to promoting a healthier world, creating an inspiring workplace, and building value for all stakeholders. Discover how we''re making this happen in our annual reports. View more

Job Seeker Resources | Quest Diagnostics No matter where you are in your journey with us, you''re probably curious about our hiring process. With that in mind, check out some of the most frequently asked questions we get from candidates below. View more

Upcoming events | Quest Diagnostics Our events are the perfect way to meet us and discover more about what it means to choose a career with Quest. Here's the place to keep your calendar up-to-date with all the details of our upcoming virtual and in-person events. View more

Innovations and Insights | Quest Diagnostics We're a customer-first organization dedicated to creating a healthier world. We offer an environment that encourages curiosity. Ready to collaborate with us? Explore the areas below or search all open jobs to discover your next meaningful and challenging role. View more

Students & early career | Quest Diagnostics Whether you are transitioning from high school, college or to civilian life after serving in the military, we have programs that can help you reach your goals - and share in the incredible work we do. At the same time, you'll be able to enjoy the satisfaction that comes with joining a network of 50,000 brilliant minds united by a shared passion to build a healthier future. View more

Load more

Why get job alerts? To stay in touch with us, we encourage you to sign up for our job alerts. Once registered, we'll match you with current and future career opportunities. You'll also receive updates about Quest news, events, and other exciting opportunities. Sign up today!

Equal employment opportunity

Quest Diagnostics is an equal employment opportunity employer. Our policy is to recruit, hire and promote qualified individuals without regard to race, color, religion, sex, age, national origin, disability, veteran status, sexual orientation, gender identity, or any any other legally protected status . Quest Diagnostics observes minimum age requirements established by federal, state and/or local laws, and will ask an applicant for verification when deemed necessary. Quest Diagnostics is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please complete the accommodation request form.

Our company Equal opportunities E-Verify Know your rights NLRA employee rights Los Angeles County FCOE

Our company

About us How we operate What we do Corporate responsibility Culture and belonging Actions and insights Suppliers Shop tests

Locations Careers Investors Specialty labs Newsroom

Connect With Us

Facebook X YouTube LinkedIn Instagram

Site map Privacy Terms Cookie Notice Contact us Language assistance / non-discrimination Asistencia de idiomas / Aviso de no discriminación / Privacy Shield Accessibility

Quest, Quest Diagnostics, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks- and -are the property of their respective owners. 2026 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.