Senior Associate Scientist / Scientist Upstream Process Development - Biopharmaceuticals

Role Description

Some roles ask you to follow a process. This one asks you to shape it. At Zoetis, we’re advancing the science of animal health—and we’re looking for a scientist or engineer who sees the big picture, navigates complexity with confidence, and brings precision to every detail. You’ll work hands-on at the intersection of upstream development and innovative bioreactor technologies, where biology meets data, and where every experiment moves us closer to breakthrough therapies for animals around the world. If you’re ready to take ownership of your work, share success with teams that value communication, and accelerate your career in a space where science meets purpose, we’d love to meet you.

What You’ll Do

•         Design and run mammalian cell culture experiments in shake flasks and bioreactors

•         Operate micro bench- and mid-scale bioreactors to produce monoclonal antibodies and proteins

•         Apply DOE, statistical models, and scale-up principles to optimize processes

•         Leverage digital tools and data analytics to improve process understanding and decision-making

•         Collaborate across upstream, downstream, formulation, and analytical teams

•         Document work in electronic lab notebooks and author technical reports

•         Support tech transfers and regulatory filings with high-quality documentation

•         Drive innovation by evaluating new bioprocess technologies and improving workflows

What You Bring

•         Aseptic technique and hands-on cell culture experience

•         Experience with bioreactor and/or fermenter operation

•         Familiarity with PAT tools, process automation, and/or continuous processing is a plus

•         Comfort with digital platforms, data visualization tools, and large data sets

•         Understanding of scale-up/scale-down principles and mass transfer models

•         Knowledge of GxP and regulatory expectations for biopharmaceuticals

•         Strong communication, collaboration, and organizational skills

Qualifications

•         BS in Biochemistry, Molecular Biology, Biotechnology, or Engineering + 2–4+ years industry experience

•           OR MS in a related field + 0–5 years experience

Full time

Regular

Colleague

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