Bothell, Washington, United States
Onsite
Not Available
Use Your Power for Purpose
At Pfizer, our purpose is to deliver breakthroughs that change patients’ lives. As a Senior Associate Scientist Biology, you will be at the forefront of our mission, contributing to the development of innovative therapies and vaccines that have the potential to transform patient care. Reporting to the Research & Development division, you will leverage advanced science and cutting-edge technologies to make a tangible impact on global health. Your work will be instrumental in ensuring drug safety and efficacy, supporting clinical trials, and accelerating the delivery of top-tier medicines to patients worldwide.
What You Will Achieve
In this role, you will support Pfizer’s biotherapeutics portfolio, contributing to support of analytical testing to support process development of antibody–drug conjugates (ADCs) and monoclonal antibodies (mAbs).
How You Will Achieve It
In this role, you will:
Support Pfizer’s biotherapeutics portfolio, contributing to support of analytical testing to support process development of antibody–drug conjugates (ADCs) and monoclonal antibodies (mAbs)
Follow procedures with general instructions, and work under moderate supervision with regular review
Perform routine testing of in-process samples, pre-formal stability support, and automation development
Support process development activities
Compile data, prepare presentations, and support lab automation initiatives
Qualifications
Must-Have
Bachelor’s degree with 6+ years of experience or Master’s degree with 4+ years of experience
Experience with analytical techniques (UPLC, CGE, icIEF)
Strong independent problem-solving and documentation skills
Effective communication and teamwork
Proficiency in using scientific software and the Microsoft Office Suite
Hands-on lab experience
Strong background in experimental design and result interpretation
Effective verbal and written communication skills
Proficiency in using personal computers for word processing, Excel, PowerPoint, and scientific software
Nice-to-Have
Prior experience with in-process analytical support for ADC or mAbs
Experience with techniques such as SE-UPLC, icIEF, CGE, Mass Spectrometry
Familiarity with liquid handling robotics systems (Tecan, Hamilton)
Experience with mass spectrometry software (Byosphere, Byos, Xcalibur)
Ability to work collaboratively in a team environment
Excellent organizational and time management skills
Digital skills and coding knowledge (Python, C#)
Experience using common AI tools, including generative technologies such
as ChatGPT or Microsoft Copilot, to support problem solving and enhance workflows
Work Location Assignment: On Premise
Relocation assistance may be available based on business needs and/or eligibility.

Candidates must be authorized to be employed in the U.S. by any employer.
U.S. work visa sponsorship (such as TN, O-1, H-1B, etc.) is not available for this role now or in the future.

Sunshine Act
Pfizer reports payments and other transfers of value to health care providers as required by federal and state transparency laws and implementing regulations. These laws and regulations require Pfizer to provide government agencies with information such as a health care provider’s name, address and the type of payments or other value received, generally for public disclosure. Subject to further legal review and statutory or regulatory clarification, which Pfizer intends to pursue, reimbursement of recruiting expenses for licensed physicians may constitute a reportable transfer of value under the federal transparency law commonly known as the Sunshine Act. Therefore, if you are a licensed physician who incurs recruiting expenses as a result of interviewing with Pfizer that we pay or reimburse, your name, address and the amount of payments made currently will be reported to the government. If you have questions regarding this matter, please do not hesitate to contact your Talent Acquisition representative.
EEO & Employment Eligibility
Pfizer 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 orientation, age, gender identity or gender expression, national origin, disability or veteran status. Pfizer also complies with all applicable national, state and local laws governing nondiscrimination in employment as well as work authorization and employment eligibility verification requirements of the Immigration and Nationality Act and IRCA. Pfizer is an E-Verify employer. This position requires permanent work authorization in the United States.
Pfizer endeavors to make www.pfizer.com/careers accessible to all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process and/or interviewing, please email disabilityrecruitment@pfizer.com. This is to be used solely for accommodation requests with respect to the accessibility of our website, online application process and/or interviewing. Requests for any other reason will not be returned.
To learn more about acceptable and prohibited uses of AI during the recruitment process, please review our candidate AI-use guidelines available on Pfizer Careers.

Research and Development
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