Sr Associate Scientist, Biologics Pivotal Formulation & Process Development

Gilead Sciences
Foster, CA

At Gilead were creating a healthier world for all people. For more than 35 years weve tackled diseases such as HIV viral hepatitis COVID-19 and cancer working relentlessly to develop therapies that help improve lives and to ensure access to these therapies across the globe. We continue to fight against the worlds biggest health challenges and our mission requires collaboration determination and a relentless drive to make a difference.

Every member of Gileads team plays a critical role in the discovery and development of life-changing scientific innovations. Our employees are our greatest asset as we work to achieve our bold ambitions and were looking for the next wave of passionate and ambitious people ready to make a direct impact.

We believe every employee deserves a great leader. People Leaders are the cornerstone to the employee experience at Gilead and Kite. As a people leader now or in the future you are the key driver in evolving our culture and creating an environment where every employee feels included developed and empowered to fulfil their aspirations. Join Gilead and help create possible together.

Job Description

Gileads mission is to discover develop and deliver therapies that will improve the lives of patients with life-threatening illnesses worldwide. We are seeking a highly motivated attentive and self-driven candidate to join our team Biologics Pivotal Formulation and Process Development as a Senior Associate Scientist . Once onboarded the successful candidate will lead and contribute in development of formulation and drug product processes for innovative molecules to advance medicine into the clinic. The candidate will have tremendous opportunities for career growth in a fast-paced and resource-rich environment through training and professional relationships. The ideal candidate is expected to be action oriented with high expectations of themselves and others. The candidate should have great verbal and written communication and interpersonal skills.

Key Responsibilities:

  • Design and execute experiments to support formulation and drug process development including formulation screening process development and clinical in-use evaluations.

  • Demonstrate expertise in analytical and biophysical characterization and drug product process development techniques; provide on-the-job training and guidance to new or less experienced colleagues.

  • Clearly timely and accurately document study plans and data in lab notebooks and other repositories following good documentation practices.

  • Analyze data draft conclusions and discuss findings with managers or supervisors.

  • Author technical documents such as memos protocols reports and regulatory dossier.

  • Prepare high quality and data-focused presentations for internal and external audience.

  • Effectively collaborate with internal and external stakeholders in project and strategy meetings.

  • Support and/or represent Biologics Pivotal Formulation and Process Development organization on cross-functional teams to advance project strategy and regulatory filings.

  • Embrace a lean-agile mindset matrix working environment and continuous improvement.

  • Support team initiatives to drive business process excellence scientific innovation and laboratory/work safety.

  • Contribute to the completion of programs projects or individual business targets to ensure that company objectives are met.

Basic Qualifications:

  • Bachelors degree and 5 years of relevant experience; OR

  • Masters degree and 3 years of relevant experience; OR

  • Hands-on laboratory experience required.

Preferred Qualifications:

  • Relevant industrial experience in biologics CMC development

  • Experience with formulation development Drug Product process development and clinical in-use evaluation for monoclonal antibodies bispecifics antibody-drug conjugates fusion proteins and other complex biologics formats strongly desired.

People Leader Accountabilities:

  • Create Inclusion - knowing the business value of diverse teams modeling inclusion and embedding the value of diversity in the way they manage their teams.

  • Develop Talent - understand the skills experience aspirations and potential of their employees and coach them on current performance and future potential. They ensure employees are receiving the feedback and insight needed to grow develop and realize their purpose.

  • Empower Teams - connect the team to the organization by aligning goals purpose and organizational objectives and holding them to account. They provide the support needed to remove barriers and connect their team to the broader ecosystem.

The salary range for this position is: $126820.00 - $164120.00. Gilead considers a variety of factors when determining base compensation including experience qualifications and geographic location. These considerations mean actual compensation will vary. This position may also be eligible for a discretionary annual bonus discretionary stock-based long-term incentives (eligibility may vary based on role) paid time off and a benefits package. Benefits include company-sponsored medical dental vision and life insurance plans*.

For additional benefits information visit:


For jobs in the United States:

Gilead Sciences Inc. is committed to providing equal employment opportunities to all employees and applicants for employment and is dedicated to fostering an inclusive work environment comprised of diverse perspectives backgrounds and experiences. Employment decisions regarding recruitment and selection will be made without discrimination based on race color religion national origin sex age sexual orientation physical or mental disabilitygenetic information or characteristic gender identity and expression veteran status or other non-job related characteristics or other prohibited grounds specified in applicable federal state and local order to ensure reasonable accommodation for individuals protected by Section 503 of the Rehabilitation Act of 1973 the Vietnam Era Veterans Readjustment Act of 1974 and Title I of the Americans with Disabilities Act of 1990 applicants who require accommodation in the job application process may contact for assistance.


For more information about equal employment opportunity protections please view the Know Your Rights poster.


Gilead Sciences will not discharge or in any other manner discriminate against employees or applicants because they have inquired about discussed or disclosed their own pay or the pay of another employee or applicant. However employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information unless the disclosure is (a) in response to a formal complaint or charge (b) in furtherance of an investigation proceeding hearing or action including an investigation conducted by the employer (c) consistent with the legal duty to furnish information; or (d) otherwise protected by law.

Our environment respects individual differences and recognizes each employee as an integral member of our company. Our workforce reflects these values and celebrates the individuals who make up our growing team.


Gilead provides a work environment free of harassment and prohibited conduct. We promote and support individual differences and diversity of thoughts and opinion.


For Current Gilead Employees and Contractors:

Please apply via the Internal Career Opportunities portal in Workday.

Required Experience:

Senior IC

Posted 2025-11-21

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