Field Applications Scientist (Chromatography)

The Field Application Scientist (FAS), Chromatography, is a technical leader and trusted advisor supporting the adoption and growth of Repligen's chromatography portfolio, including chromatography resins, pre-packed column solutions, and affinity ligand technologies. This customer-facing role combines deep downstream expertise with a commercial mindset to solve complex purification challenges and influence technology selection.
Working closely with customers, Sales, Product Management, Marketing, and R&D, the FAS will support customer programs from early process development through commercial manufacturing, help accelerate strategic opportunities, and contribute to the successful introduction of new technologies. This is an opportunity to work directly with leading biopharmaceutical companies, influence next-generation purification processes, and have a visible impact on the growth of Repligen's downstream business.
This role is expected to model our Leadership Behaviors—Integrity & Compliance, Customer Focus, Collaboration, Courage, Team Empowerment, and Accountability & Results—in all aspects of work.

Responsibilities

• Partner with Sales, Product Management, and Marketing to grow Repligen's chromatography portfolio through customer evaluations, technical presentations, demonstrations, troubleshooting, and Voice of Customer activities.

• Serve as a chromatography technical expert, helping customers solve complex purification challenges and optimize their processes from early development through commercial manufacturing.

• Build strong customer relationships and partner with Sales to accelerate opportunities, remove technical barriers, influence technology design-in, and increase confidence in Repligen solutions.

• Collaborate with Product Management, R&D, and Marketing to develop application data, technical reports, training materials, posters, and customer-facing content that support new product introductions.

• Provide customer and market insights that help shape product strategy and future applications, while staying current on downstream bioprocessing technologies and industry trends.

• Partner with Technical Support, Quality, and Operations to resolve customer issues, and maintain accurate opportunity and activity records in Salesforce.

Qualifications

• Bachelor's degree or higher in Biology, Biochemistry, Biotechnology, Chemical or Biological Engineering, or a related scientific discipline. MS or PhD preferred.

• 5+ years of experience in downstream bioprocessing, including demonstrated hands-on chromatography process development, resin evaluation, and optimization, with affinity chromatography experience.

• Strong knowledge of scale-up/scale-down, technology transfer, and cGMP environments.

• Excellent analytical, troubleshooting, and communication skills, with the ability to translate complex technical challenges into practical customer solutions.

• Ability to work independently, combining technical expertise with a commercial mindset to influence customer decisions.

• Willingness to work flexible hours, collaborate effectively across global teams, and travel domestically up to 75%, with occasional international travel.

Preferred Qualifications

• Experience with custom affinity ligand development or screening.

• Experience supporting biologics and advanced modalities, including antibodies, antibody conjugates, cell and gene therapy, viral vectors such as AAV, mRNA, and recombinant proteins.

• Experience working in or closely with Process Development, MSAT, or Manufacturing organizations.

• Customer-facing experience in field applications, technical support, technical sales, or a vendor FAS role.

• Experience using Salesforce or another CRM.

What Repligen Offers

Our mission is to inspire advances in bioprocessing as a trusted partner in the production of biologic drugs that improve human health worldwide. Focused on cost and process efficiencies, we deliver innovative technologies and solutions that help set new standards in bioprocessing. The estimated base salary range for this role, based in the United States of America is $100,000-$146,000. Compensation decisions are dependent on several factors including, but not limited to an individual's ,qualifications, location, internal equity, and alignment with market data. Additionally, employees are eligible to participate in one of our variable cash programs (bonus or commission) and eligible roles may receive equity as part of the compensation package. We offer a wide range of benefits such as paid time off, health/dental/vision, retirement benefits and flexible spending accounts. All compensation and benefits information will be confirmed in writing at the time of offer.