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Application Support Scientist

Danaher · Chicago, IL · $74,000–$92,000 a year · Full time

Posted Sep 29, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you trained a customer or colleague on a complex instrument.

What they are checking: Whether they can teach technical material clearly to people of different skill levels.

Describe a time you shared customer feedback that changed how a product or application was handled.

What they are checking: Whether they act as a link between customers and Sales, Service and Product teams.

How do you manage several customer projects at once with travel?

What they are checking: Whether they can stay organized across demos, training and application work.

What would you do

A customer says their sensitivity dropped overnight. How do you troubleshoot it with them?

What they are checking: Whether they diagnose systematically through source, LC and sample issues instead of guessing.

How do you run a product demonstration that convinces a lab director?

What they are checking: Whether they can show relevant results using the customer's own samples and priorities.

A sales rep promises a customer something the instrument can't really do. What do you do?

What they are checking: Whether they protect customer trust with honest technical answers while supporting the team.

About the work

Walk me through how you'd develop an LC-MS method for a new drug panel in a forensic toxicology lab.

What they are checking: Whether they have real method development experience with sample prep, chromatography and MS settings.

What are the advantages of accurate mass instruments over triple quadrupoles for clinical and forensic work?

What they are checking: Whether they understand when high-resolution mass spectrometry adds value, like screening for unknowns.

What validation requirements matter to a clinical lab adopting a new LC-MS assay?

What they are checking: Whether they understand accuracy, precision, matrix effects and regulatory expectations.

How do you deal with matrix effects in a blood or urine sample?

What they are checking: Whether they know practical ways to detect and reduce ion suppression.

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The full job description

As published by Danaher.

Bring more to life. Are you ready to accelerate your potential and make a real difference within life sciences, diagnostics and biotechnology? At SCIEX, one of Danaher’s 15+ operating companies, our work saves lives—and we’re all united by a shared commitment to innovate for tangible impact. You’ll thrive in a culture of belonging where you and your unique viewpoint matter. And by harnessing Danaher’s system of continuous improvement, you help turn ideas into impact – innovating at the speed of life. As part of SCIEX, you will help to influence life changing research and outcomes, while accelerating your potential. For more than 50 years, we have been empowering our customers to solve the most impactful analytical challenges in quantitation and characterization through ground-breaking innovation and outstanding reliability and support. You will be part of a winning team, enabled by DBS, that is passionate about helping life science experts around the world get to answers they can trust. Learn about the Danaher Business System which makes everything possible. The Application Scientist supports LC-MS product demonstrations, application development, technical training, and customer-facing activities within the Clinical and Forensics markets. This role contributes to the success of SCIEX’s accurate mass product portfolio and partners with Sales, Service, and Product teams to deliver pre-sales support, customer presentations, and technical expertise This position reports to the Sr Manager, Application Support and is part of the North America Applications team located in Marlborough, MA or Golden, CO and will be an on-site role. In this role, you will have the opportunity to: • Prepare and deliver customer demonstrations showcasing SCIEX LC/MS products and workflows. Provide on-site training for customers on SCIEX hardware and software platforms and offer ongoing support to ensure customer satisfaction and product efficiency. • Work with business and sales units to pinpoint areas needing growth, identifying key application areas. • Investigate and develop comprehensive solutions (including sample preparation, analytical methods, and reporting) for internal use or customer deployment and collaborate with colleagues in different regions to develop a full suite of application solutions. • Assist in defining and developing new hardware and software products, thoroughly test these new products within both the nominal and accurate mass product portfolio. • Participate in scientific conferences, seminars, and training programs to stay updated and contribute to the scientific community. The essential requirements of the job include • Bachelor’s, Master’s, or Ph.D. in Chemistry, Biochemistry, Analytical Chemistry, or related life sciences field • 2+ Experience with mass spectrometry, liquid chromatography (LC-MS), and other analytical techniques with strong understanding of method development, validation, and troubleshooting for LC-MS/MS methods • Ability to present scientific data clearly to diverse audiences and build strong relationships with customers and internally within SCIEX • Proven capacity to troubleshoot instrumentation and application-related issues • Experienced with small molecule quantitation on triple quadrupoles Travel, Motor Vehicle Record & Physical/Environment Requirements: if applicable for role • The job function includes up to 50% of travel in North America if based local to the demo sites in Marlborough, MA or Golden, CO. • Possess a current driver license with an acceptable driving record. It would be a plus if you also possess previous experience in: • Using SCIEX instrumentation and software • Knowledge of clinical market trends, assays, and laboratory workflows and Prior experience working in a University Core Facility • Experience in training and supporting customers on instrumentation and software SCIEX, a Danaher operating company, offers a broad array of comprehensive, competitive benefit programs that add value to our lives. Whether it’s a health care program or paid time off, our programs contribute to life beyond the job. Check out our benefits at Danaher Benefits Info . The annual salary range OR the hourly range for this role is $74k-$92K This is the range that we in good faith believe is the range of possible compensation for this role at the time of this posting. This range may be modified in the future. This job is also eligible for bonus/incentive pay. We offer comprehensive package of benefits including paid time off, medical/dental/vision insurance and 401(k) to eligible employees. Note: No amount of pay is considered to be wages or compensation until such amount is earned, vested, and determinable. The amount and availability of any bonus, commission, benefits, or any other form of compensation and benefits that are allocable to a particular employee remains in the Company's sole discretion unless and until paid and may be modified at the Company’s sole discretion, consistent with the law. Join our winning team today. Together, we’ll accelerate the real-life impact of tomorrow’s science and technology. We partner with customers across the globe to help them solve their most complex challenges, architecting solutions that bring the power of science to life. For more information, visit www.danaher.com . Danaher Corporation and all Danaher Companies are committed to equal opportunity regardless of race, color, national origin, religion, sex, age, marital status, disability, veteran status, sexual orientation, gender identity, or other characteristics protected by law. The U.S. EEO posters are available here . For candidates who are based outside of New York City or who are applying for roles outside of New York City, for more information about conditions of any job offer please click here . We comply with federal and state disability laws and make reasonable accommodations for applicants and employees with disabilities. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact:1-202-419-7762 or applyassistance@danaher.com .

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