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Salary
$226k – $293k per year
Location
In office (Foster City)
Seniority
Architect · 12+ years exp
Visa
H-1B filings in 12 months: 200 · green card filings: 92
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 10, 2026. First seen by Alion on Nov 6, 2026. Gilead Sciences scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Gilead Sciences is a American biopharmaceutical company that discovers, develops, and commercializes innovative medicines for life-threatening diseases. Founded in 1987 and headquartered in Foster City, California, the company is globally recognized for transforming HIV treatment and advancing curative therapies for hepatitis C. Listed on the NASDAQ, it also focuses on developing targeted therapies in oncology, cell therapy, and inflammatory conditions worldwide.

At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve 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 world’s biggest health challenges, and our mission requires collaboration, determination and a relentless drive to make a difference.

Every member of Gilead’s 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 we’re 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

Key Responsibilities

  • Define and execute purification development strategy for a portfolio of pivotal, commercial, and lifecycle-management biologics programs.
  • Provide scientific and technical direction for process development, characterization, scale-up, validation readiness, technology transfer, and commercial manufacturing support.
  • Oversee development of robust and manufacturable drug substance purification processes, including harvest clarification, chromatography, virus inactivation, virus filtration, ultrafiltration/diafiltration, formulation, and final drug substance filtration.
  • Direct risk-based process characterization strategies, scale-down model development, process parameter evaluation, and establishment of scientifically justified process control strategies.
  • Provide technical support for technology transfers to internal manufacturing sites, external partners, and contract development and manufacturing organizations.
  • Partner with Manufacturing Sciences and Technology and Manufacturing to support engineering runs, process performance qualification, investigations, continued process verification, comparability assessments, and post-approval changes.
  • Provide technical leadership for purification-related regulatory content, health-authority responses, and inspection support.
  • Identify and communicate technical risks, development options, resource requirements, and recommendations to functional and cross-functional stakeholders.
  • Advance new technologies, platforms, automation, high-throughput experimentation, modeling, and data-driven development approaches.
  • Lead, coach, and develop a high-performing team of scientists and engineers.
  • Establish clear priorities, roles, decision rights, development objectives, and performance expectations.
  • Foster an inclusive, collaborative, accountable, and learning-oriented culture consistent with Gilead’s Leadership Commitments and People Leader Accountabilities.

Basic Qualifications

One of the following:

  • PhD with 8+ years of relevant experience;
  • MS with 10+ years of relevant experience; or
  • BS with 12+ years of relevant experience.

Relevant education and experience should be in chemical engineering, biochemical engineering, biochemistry, bioengineering, biotechnology, pharmaceutical sciences, or a related scientific discipline.

Additional requirements:

  • Extensive experience in biologics purification process development, characterization, scale-up, technology transfer, validation readiness, or commercial manufacturing support.
  • Demonstrated experience leading complex process-development programs or a portfolio of related activities.
  • Strong knowledge of downstream processing and biologics manufacturing.
  • Experience developing process control strategies and translating process understanding into manufacturing controls.
  • Knowledge of cGMP manufacturing, process validation, data integrity, regulatory submissions, and lifecycle management.
  • Experience authoring, reviewing, or providing technical leadership for CMC documentation.
  • Demonstrated experience leading and developing scientists or engineers.
  • Proven ability to lead cross-functional work and influence stakeholders across organizational levels.
  • Excellent scientific judgment, decision-making, communication, technical writing, presentation, and stakeholder management skills.

Preferred Qualifications

  • Two or more years of direct people leadership experience.
  • Experience supporting pivotal or commercial-stage monoclonal antibodies, complex proteins, bispecific antibodies, antibody-drug conjugates, or other advanced biologics.
  • Experience supporting BLAs, MAAs, post-approval filings, health-authority responses, or regulatory inspections.
  • Experience with process performance qualification, continued process verification, comparability assessments, manufacturing investigations, and post-approval changes.
  • Experience transferring biologics drug substance processes to internal manufacturing sites, external partners, or contract development and manufacturing organizations.
  • Knowledge of viral clearance and associated regulatory expectations.
  • Experience applying quality risk management, design of experiments, statistical analysis, scale-down models, process modeling, automation, or high-throughput process development.

People Leader Accountabilities

  • Create Inclusion: Model inclusive leadership and embed inclusion in team practices and decision-making.
  • Develop Talent: Coach employees, provide meaningful feedback, and create development opportunities aligned with their capabilities and aspirations.
  • Empower Teams: Connect team objectives to organizational priorities, clarify accountability, remove barriers, and provide the autonomy and support needed to succeed.
The salary range for this position is: $226,185.00 - $292,710.00. 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:

https://www.gilead.com/careers/compensation-benefits-and-wellbeing

* Eligible employees may participate in benefit plans, subject to the terms and conditions of the applicable plans.

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 disability, geneticinformation 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 laws. In 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 [email protected] for assistance.

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

NOTICE: EMPLOYEE POLYGRAPH PROTECTION ACT

YOUR RIGHTS UNDER THE FAMILY AND MEDICAL LEAVE ACT

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.

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