Sr Associate Scientist/Engineer Purification

Use Your Power for Purpose
Pfizer's purpose is to deliver breakthroughs that change patients' lives. At the core of this mission is Research and Development, where we strive to transform advanced science and cutting-edge technologies into the most impactful therapies and vaccines. Whether you are involved in discovery sciences, ensuring drug safety and efficacy, or supporting clinical trials, your role is crucial. You will leverage innovative design and process development capabilities to accelerate the delivery of best-in-class medicines to patients globally. This commitment to excellence drives us to continuously push the boundaries of what is possible in healthcare, ensuring that we bring life-changing treatments to those who need them most.
What You Will Achieve
In this role, you will:

• Design, plan, and execute purification and recovery activities, incorporating literature reviews and experimental design in consultation with your supervisor
• Develop and test new hypotheses to enhance the understanding of recovery and purification processes
• Plan and implement operational efficiency improvements across Bioprocess R&D work processes
• Continuously analyze data, identify problems, and implement changes after discussions with peers or supervisors
• Analyze and interpret experimental data, results, and methodologies with guidance, presenting findings effectively
• Present problems and propose solutions in group discussions, contributing to work group goals
• Independently analyze, interpret, and conclude experimental data, prioritizing work to meet project deadlines
• Apply technical skills to assignments, choosing between alternatives to solve moderately complex problems
• Follow procedures for assignments with general instructions, working under moderate supervision with regular review
• Identify activities to support team goals, participating and contributing effectively as a team member

Here Is What You Need (Minimum Requirements)

• BA/BS with at least 3 years of experience or MBA/MS with any years of experience
• Demonstrated expertise in independently designing, planning, and executing purification and recovery activities including chromatography, TFF, and NFF.
• Strong analytical skills and the ability to apply them effectively in various scenarios
• Proficiency in experimental design and data interpretation
• Experience with operational efficiency improvements
• Ability to prioritize work to meet project deadlines
• Effective collaboration and communication skills

Bonus Points If You Have (Preferred Requirements)

• PhD Degree
• A sound understanding of statistical experimental design and analysis
• Proficiency with personal computers, including word processing, spreadsheets, PowerPoint, and relevant scientific software
• Strong problem-solving skills and the ability to choose between alternatives to solve moderately complex problems
• Proactive in identifying activities to support work group/project team goals
• Experience using common AI tools, including generative technologies such as ChatGPT or Microsoft Copilot, to support problem solving and enhance productivity. Demonstrated curiosity for exploring how these tools can improve outcomes and understanding of responsible AI practices, including risk management and ethical use

Physical / Mental requirements

• Might include Lifting, sitting, standing, walking, bending, ability to perform mathematical calculations and ability to perform complex data analysis.

Non-Standard work schedule, travel or environment requirements

• May require some non Standard work schedule

Other job details

• Last day to apply July 30th, 2026
• Work Location Assignment: On Premise

The annual base salary for this position ranges from $68,600.00 to $114,300.00. In addition, this position is eligible for participation in Pfizer's Global Performance Plan with a bonus target of 7.5% of the base salary. We offer comprehensive and generous benefits and programs to help our colleagues lead healthy lives and to support each of life's moments. Benefits offered include a 401(k) plan with Pfizer Matching Contributions and an additional Pfizer Retirement Savings Contribution, paid vacation, holiday and personal days, paid caregiver/parental and medical leave, and health benefits to include medical, prescription drug, dental and vision coverage. Learn more at Pfizer Candidate Site - U.S. Benefits | (uscandidates.mypfizerbenefits.com). Pfizer compensation structures and benefit packages are aligned based on the location of hire. The United States salary range provided does not apply to Tampa, FL or any location outside of the United States.
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 [email protected] . 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