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.

• 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

• 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

• 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

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

• May require some non Standard work schedule

• 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 $. 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.

• a 401(k) plan with Pfizer Matching Contributions
• an additional Pfizer Retirement Savings Contribution
• paid vacation
• holiday and personal days
• paid caregiver/parental and medical leave
• health benefits to include medical, prescription drug, dental and…