Senior Bioprocess Scientist

Role Overview

IDEXX is seeking an experienced and innovative Senior Upstream Bioprocess Scientist to join our Assay Design and Development team. In this role, you will provide scientific leadership for reagent and biologics development programs supporting IDEXX’s diagnostic products. You will contribute deep expertise in biologics process development while collaborating across R&D, Operations, Quality, Regulatory Affairs, and external partners to advance high‑impact projects from concept through implementation.

This is an on‑site role based in Westbrook, ME.

• Lead development and optimization of biologics production processes to support new product development and lifecycle management initiatives.
• Evaluate and implement technologies, methods, and approaches that improve reagent quality, process robustness, scalability, and operational efficiency.
• Design and execute experiments, interpret complex data sets, and recommend data‑driven technical decisions.
• Contribute throughout the product development lifecycle, including feasibility assessment, process development, verification and validation activities, and investigations.
• Collaborate closely with cross‑functional partners including R&D, Manufacturing, Quality, Regulatory Affairs, Supply Chain, Program Management, and external partners.
• Support preparation of technical documentation and regulatory submissions associated with biologics manufacturing and product development activities.
• Serve as a technical resource and mentor to scientists and engineers across the organization.
• Monitor scientific and industry developments and recommend opportunities to strengthen IDEXX capabilities and competitive position.

• Ph.D. in Biochemistry, Molecular Biology, Cell Biology, Bioprocess Engineering, Chemical Engineering, Biological Engineering, or a related field with 0–3 years of relevant industry experience; or Master’s degree in above disciplines with 8+ years of relevant industry experience.
• Demonstrated expertise in mammalian biologics process development, including experience with one or more protein production platforms.
• Experience supporting development, scale‑up, transfer, and/or commercialization of biologics manufacturing processes in a regulated environment.
• Strong technical problem‑solving skills with the ability to design experiments, analyze data, and develop practical solutions to complex challenges.
• Experience managing or leading technically complex projects involving multiple stakeholders.
• Proven ability to work effectively in cross‑functional teams and influence decisions through scientific expertise.
• Excellent written and verbal communication skills, including technical documentation and scientific presentations.
• Proficiency with statistical analysis and scientific data interpretation.
• Preferred:
  Experience supporting recombinant proteins, monoclonal antibodies, polyclonal antibodies, or other biological reagents; knowledge of veterinary biologics regulations or other regulated biologics development environments.
• Preferred:
  Experience with process characterization, technology transfer, validation, or commercial manufacturing support; familiarity with QbD, DoE, and risk‑based development approaches.
• Preferred:
  Experience working with external partners, contract research organizations, or contract manufacturing organizations.
• Preferred:
  Experience with data analytics or advanced modeling approaches applied to bioprocess development.

• Salary range starting at $105,000 based on experience.
• Opportunity for annual cash bonus.
• Health, Dental, Vision benefits.
• Day‑one 5% matching 401(k).
• Additional benefits including financial support, pet insurance, mental health resources, volunteer paid days off, employee stock program, foundation donation matching, and more.

Westbrook, Maine. The Westbrook area provides great access to active downtown areas and the outdoors, with the coast and numerous mountains and hiking trails nearby. Learn more on the Portland tourism website:

IDEXX is an equal opportunity employer. Applicants will not be discriminated against because of race, color, creed, sex, sexual orientation, gender identity or expression, age, religion, national origin, citizenship status, disability, ancestry, marital status, veteran status, medical condition, or any protected category prohibited by local, state, or federal laws.