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| Company Name: |
Pfizer |
| Location: |
Andover, MA |
| Position Type: |
Full Time |
| Post Date: |
03/19/2026 |
| Expire Date: |
04/18/2026 |
| Job Categories: |
Biotechnology and Pharmaceutical, Healthcare, Other, Manufacturing and Production, Science, Research & Development, Medical |
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Senior Associate Scientist
**Why Patients Need You**
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**
The purpose of the Senior Associate Scientist position is to provide the planning and execution of experiments designed to aid in defining manufacturing processes for biopharmaceuticals. The successful candidate will have a working knowledge of biochemistry, and related analytical chemistries, chromatography, centrifugation, precipitation, and filtration design principles. This position requires the design and execution of experiments using these technologies and the ability to evaluate and clearly reporting the results to laboratory colleagues and other affected functional areas.
**How You Will Achieve It**
+ Developing and optimizing recovery and purification processes for recombinant proteins and biological macromolecules for early- and late-phase clinical trials.
+ Will work with fellow scientists to develop robust, efficient, and scalable strategies to improve process performance.
+ Conducting small-scale studies as well as pilot plant and manufacturing downstream purification studies.
+ Based on study analyses, the role will develop and test new hypotheses to improve the fundamental understanding of recovery and purification processes.
+ Support process validation, quality by design, regulatory approaches, and quality systems.
+ Prepare internally reviewed technical reports, deliver oral presentations to scientists and management, and publish externally.
+ Executing operational efficiency improvements and planning and implementing improvements across Bioprocess R&D work processes.
+ Endorse and support changes to business infrastructure to ensure pipeline, legacy, and technology success.
**Qualifications**
**Must-Have**
+ BS with 3+ years' experience or MS degree in a biological or engineering discipline (Biotechnology, Biochemistry, Chemical/Biochemical Engineering, or equivalent) with 0+ years of experience.
+ 0-2 years' experience in recombinant protein/biomolecule purification process development, technology transfer and/or bioprocess manufacturing required. Demonstrated ability to drive for results and generate innovative research programs independently.
+ Diverse work experience recovering recombinant proteins/biomolecules from mammalian and microbial/yeast cultures. Experience transferring Biotherapeutic processes to pilot plants or manufacturing organizations, and knowledge of data acquisition and controls systems in these environments is desirable.
**Nice-to-Have**
+ Applicants should be bright, organized, self-motivated, and capable of working independently, and in a collaborative environment.
+ The successful candidate will possess strong oral and written communication skills.
**PHYSICAL/MENTAL REQUIREMENTS**
This position will require standing for long periods of time in a laboratory setting. Long periods of sitting at computer workstation are required. Occasional lifting of equipment may be required.
**NON-STANDARD WORK SCHEDULE, TRAVEL OR ENVIRONMENT REQUIREMENTS**
Occasional travel to vendor worksites may be required.
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.
**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.
Research and Development
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| Company Name: |
Pfizer |
| Website: | https://pfizer.dejobs.org/62B99C3718EC413598DDAF8DDF654F2925 |
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