Pfizer

Sr. Associate Scientist, Bioassay & Impurity Sciences

Pfizer$68K — $114K *
Pharmaceuticals & Biotech
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • BA/BS with 3+ years of experience or MBA/MS with any years of experience
  • Technical expertise in immunological and cell-based assays like ELISAs and molecular biology techniques
  • Experience with mammalian cell culture and aseptic technique
  • Familiarity with high-throughput liquid handling and automation platforms
  • Strong scientific understanding of potency assays and problem-solving skills
  • Excellent written and verbal communication skills
  • Highly motivated and able to work independently in a fast-paced environment

Responsibilities

  • Independently execute routine experiments with minimal variability
  • Plan and perform complex experiments with guidance
  • Analyze and interpret experimental data and troubleshoot issues
  • Develop and refine experimental protocols
  • Document work accurately in electronic laboratory notebooks
  • Summarize results and communicate findings to teams
  • Collaborate effectively with cross-functional teams to achieve project goals

Benefits

  • 401(k) plan with matching contributions
  • Paid vacation, holiday, and personal days
  • Paid caregiver/parental and medical leave
  • Comprehensive health benefits including medical, dental, and vision coverage
  • Relocation assistance may be available
  • Participation in Pfizer’s Global Performance Plan with a bonus opportunity
Full Job Description

What You Will Achieve

In this role, you will independently execute routine experiments with minimal variability and support more complex studies under guidance. You will analyze data, document findings in electronic laboratory notebooks, and prepare clear summaries and reports. You will collaborate cross-functionally and communicate results to team and departmental audiences. You may also contribute to the development and continuous improvement of potency assay workflows, including the implementation of automated solutions to enhance robustness, throughput, and data quality.

How You Will Achieve It

  • Independently execute routine experiments with minimal variability in design and execution

  • Plan and perform more complex experiments with appropriate guidance

  • Apply scientific principles to support assay development, process and product understanding, and related activities

  • Analyze and interpret data; troubleshoot experimental issues and identify unexpected results with guidance

  • Develop and refine experimental protocols

  • Accurately document experimental work in electronic laboratory notebooks

  • Summarize and clearly communicate results to team and departmental audiences

  • Author technical reports, protocols, and supporting documentation

  • Collaborate effectively across cross-functional teams to achieve project goals

  • Leverage scientific literature to inform experimental design and data interpretation

  • Support lab operations, including equipment maintenance and continuous improvement initiatives

  • Contribute to the development, optimization, and implementation of automated potency assay workflows to improve robustness, throughput, and data quality

Qualifications

Must-Have

  • BA/BS with at least 3+ years of experience or MBA/MS with any years of experience

  • Demonstrate technical expertise in immunological and cell-based assays, including ELISAs, cytotoxicity assays, tissue culture, and molecular biology techniques

  • Experience with mammalian cell culture and aseptic technique

  • Experience with high-throughput liquid handling and automation platforms

  • Strong scientific curiosity and understanding of potency assays

  • Ability to critically evaluate, adapt, and apply scientific techniques

  • Understanding of project scope and how individual work contributes to broader departmental and organizational goals

  • Highly motivated and able to work effectively in a fast-paced, matrixed environment

  • Strong interpersonal skills with the ability to collaborate in a multidisciplinary team

  • Excellent written and verbal communication skills

  • Well-organized, independent, and solution-oriented with a creative approach to problem-solving

Nice-to-Have

  • Pharmaceutical and biotech drug discovery experience

  • Experience in developing and troubleshooting bioassays designed to assess functionality

  • Experience with live-cell imaging systems

  • Experience with Hamilton liquid handlers

  • Experience using common AI tools, including generative technologies suchu00a0
    as ChatGPT or Microsoft Copilot, to support problem solving and enhance

PHYSICAL/MENTAL REQUIREMENTS

Position requires occasional light lifting and periods of standing, sitting or walking.


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 Pfizers 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 lifes 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 6 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.

To learn more about acceptable and prohibited uses of AI during the recruitment process, please review our candidate AI-use guidelines available onPfizer Careers.

Research and Development

About Pfizer

Hospira, Inc. is the provider of injectable drugs and infusion technologies. Through its broad, integrated portfolio, Hospira is uniquely positioned to Advance Wellness™ by improving patient and caregiver safety while reducing healthcare costs. The company is headquartered in Lake Forest, Ill., and has approximately 16,000 employees.

Pfizer Careers

Joining Pfizer’s global team offers more than just job opportunities; it’s a chance to be a part of a company that leads with science and innovates for better health. As a leading biopharmaceutical company, Pfizer is at the forefront of transforming lives through innovation, leadership, and diversity. Work You’ll Do At Pfizer, you will collaborate with some of the brightest minds in the industry, engaging in work that enhances global health and saves lives. Our culture thrives on intellectual curiosity, professional growth, and inclusivity, making every day a learning opportunity. Here, your skills will be honed, your professional acumen will be expanded, and you will be part of a team that values the power of diverse insights to drive success. Pfizer’s Leadership and Growth Lead and innovate with Pfizer, where we value the growth of each employee. Our leadership is committed to providing employees with the training and resources needed to excel in their careers. Pfizer offers a variety of career paths, including roles in research, marketing, finance, technology, and more, each offering a unique blend of challenges and rewards. Internship and Employment Opportunities Start your career with Pfizer through our internship programs or dive straight into a full-time position. We are hiring individuals who are passionate about healthcare and who seek to make a difference in the world. Our internships provide invaluable industry experience, networking opportunities, and a potential pathway to full-time employment. Benefits and Culture Pfizer is dedicated to fostering a workplace where all employees feel valued and can achieve their full potential. We offer competitive benefits packages that support the health, well-being, and financial security of our employees and their families. At Pfizer, you’ll find a culture that encourages collaboration, innovation, and continuous learning. Join Our Team Explore the numerous job opportunities at Pfizer by searching open positions that match your skills and interests. We look for driven, curious, and innovative team players who are ready to advance their careers in a transformative company. Stay Connected Keep up to date with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding career opportunities that await at Pfizer. Interview and Resume Tips Prepare for your future with Pfizer by utilizing our resources for resume building and interview preparation. We provide guidance on how to effectively showcase your skills and experiences to align with the needs of a position at Pfizer. Our goal is to help you succeed in securing a role that suits your professional goals and personal growth aspirations. Pfizer: A Place Where You Can Make a Difference Every position at Pfizer contributes to our mission of making the world a healthier place. Whether through direct patient care, research innovation, or corporate roles that support our operations, your work will have global impact. Join us in our journey to change lives—explore Pfizer careers today.
Learn more about Pfizer
Size
79,000 employees
Market Cap
$285.9 billion
Industry
Net Income
$9.6 billion
Founded
1849
5 Year Trend
+9%
Revenue
$41.9 billion
NASDAQ

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