Senior Associate Scientist - Biopharmaceutical Pilot Registration Lab

Role Description

As a Senior Associate Scientist in the Biopharmaceutical Pilot Registration Lab, you will play a vital role in the development, scale-up, and technology transfer of CHO-expressed monoclonal antibodies for veterinary use. You will operate in a GMP-regulated environment, collaborating with multidisciplinary teams to ensure a successful transition from development to pilot to commercial manufacturing. This role requires hands-on technical expertise in upstream and/or downstream processing, as well as strong organizational and communication skills.

The position is based in Lincoln, Nebraska with frequent interactions with colleagues and external partners located around the globe.

• Advanced experience in setting up, programming, operating and troubleshooting large-scale equipment for expression (mammalian cell culture) and/or purification of recombinant therapeutic proteins
• Represent the lab as a key technical leader in cross-functional project teams, collaborating with process development and manufacturing teams, driving process optimization and scale-up, ensuring seamless, high-quality technology transfer
• Demonstrate advanced expertise in authoring and reviewing process documentation, SOPs, protocols, technology transfer documents and regulatory filings ensuring the highest standards of scientific rigor and quality
• Hands‑on execution and support of upstream cell culture (shake flask to 2000-L production scale) and/or downstream purification (centrifugation, chromatography, filtration) to produce GMP batches of drug substance.
• Drive continuous improvement by optimizing existing workflows and procedures
• Ensure accurate and compliant documentation in accordance with current GMP standards
• Perform preventative maintenance on portable and stationary equipment
• Maintain, clean, and perform steam-in-place procedures for equipment

• Bachelor's degree (minimum) in biological sciences, chemical engineering, or related field. Advanced degree would be advantageous.
• Significant practical experience and theoretical knowledge of upstream cell culture and/or downstream processing (centrifugation, filtration, chromatography)
• Proven track record in GMP-regulated environments, including process scale-up and tech transfer to commercial facilities.

• Strong scientific and engineering background in the principles for process scale-up and robustness
• Experience with instrumentation, control systems, and advanced troubleshooting for pilot-scale GMP operations, including practical experience with automated control and data capture systems such as SCADA, Delta V, and Unicorn
• Knowledge of equipment specification, qualification, operation, and maintenance in a regulated environment
• Experience with large-scale bioreactor and/or purification equipment
• Working knowledge of GMP systems (change control, SAP, LIMS) is desirable
• Willingness to work flexible hours, including after-hours monitoring as needed
• Ability to perform physically demanding tasks typical of a pilot-scale lab environment
• Excellent aseptic technique
• Experience with cGMPs, inspection, and compliance
• Demonstrated ability to work independently on multiple concurrent programs
• Familiarity with regulatory frameworks for veterinary biopharmaceuticals is desirable
• Strong organizational and people skills
• Excellent written and verbal communication skills
• Proven ability to work effectively as part of a collaborative team

Full time

Regular Colleague

Any unsolicited resumes sent to Zoetis from a third party, such as an Agency recruiter, including unsolicited resumes sent to a Zoetis mailing address, fax machine or email address, directly to Zoetis employees, or to Zoetis resume database will be considered Zoetis property. Zoetis will NOT pay a fee for any placement resulting from the receipt of an unsolicited resume.

Zoetis will consider any candidate for whom an Agency has submitted an unsolicited resume to have been referred by the Agency free of any charges or fees. This includes any Agency that is an approved/engaged vendor but does not have the appropriate approvals to be engaged on a search.

Notice: Zoetis Recruiters will contact candidates via email from an address ending in and may also initially connect with candidates through Linked In
, including Linked In InMail. Zoetis does not use Gmail, Outlook, Yahoo, or other web-based/generic email domains to communicate about job opportunities, interviews, or offers of employment. If you receive a recruitment‑related email message claiming to be from Zoetis that does not come from , please treat it as suspicious. For your security, do not reply, click links, open attachments, share personal or financial information, or send money in response to unexpected or questionable recruitment communications.

Zoetis is committed to equal opportunity in the terms and conditions of employment for all employees and job applicants without regard to race, color, religion, sex, sexual…