Gilead Sciences, Inc. Posted November 5, 2026

Scientist, Drug Metabolism

Foster City, United States Full time
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Gilead Sciences, Inc. is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

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

At Gilead our pursuit of a healthier world for all people has yielded a cure for hepatitis C, revolutionary improvements in HIV treatment and prevention as well as advancements in therapies for viral and inflammatory diseases and certain cancers.

We set and achieve bold ambitions in our fight against the world’s most devastating diseases, united in our commitment to confronting the largest public health challenges of our day and improving the lives of patients for generations to come.

As a Scientist, Drug Metabolism at Gilead you will support PK and PK/PD modeling across discovery and development, with an emphasis on large-molecule therapeutics, including biologics, ADCs, and multispecific/T-cell engagers. The role will apply mechanistic and translational modeling to support study design, human PK and dose predictions, and program decision-making.

This is a site-based position at our Foster City campus.

Essential Duties and Job Responsibilities

Provide PK and PK/PD modeling support across discovery and development, with particular emphasis on large molecules, including biologics, ADCs, and multispecific/T-cell engager therapeutics. Contribute to the design and interpretation of nonclinical PK, toxicology, and pharmacology studies.

Contribute to quantitative DMPK strategies by working with interdisciplinary project teams to apply modeling approaches to program questions and decision-making.

Develop and apply mechanistic PK/PD models to address translational questions, support dose selection, and predict first-in-human exposures, including approaches relevant to large-molecule PK, TMDD, target engagement, and nonlinear disposition.

Develop and apply modeling and simulation workflows to support nonclinical study design and data interpretation, incorporating AI-based approaches where appropriate.

Analyze and communicate modeling results and recommendations to project teams, collaborators, and management.

Work with project teams, line management, and CROs to support high-quality and timely delivery of analyses and documents for regulatory submissions.

Contribute quantitative modeling expertise to business development and licensing evaluations.

Requirements:

Ph.D. with 0+ years of post-graduate industry experience in PK, drug metabolism, pharmaceutics, or a related field, with a focus on quantitative PK/PD modeling OR

Masters with 4+ years of post-graduate industry experience in PK, drug metabolism, pharmaceutics, or a related field, with a focus on quantitative PK/PD modeling

Strong foundation in PK/PD principles and mathematical modeling, with knowledge of large-molecule disposition, TMDD, target engagement, and translational PK.

Experience with mechanistic PK/PD and multi-compartmental modeling and proficiency in Phoenix/WinNonlin, MATLAB/SimBiology, R, GastroPlus, or equivalent tools.

Ability to design and interpret modeling workflows, draw conclusions from quantitative analyses, and clearly communicate results to diverse audiences.

Experience applying AI to model building and/or automation of modeling workflows.

Intellectual curiosity and interest in advances in biologics DMPK and quantitative modeling, with evidence of scientific contributions through publications, presentations, and/or professional activities

Preferred:

Degree concentration in engineering or pharmacology

Experience with large-molecule therapeutics, including biologics, ADCs, multispecific antibodies/T-cell engagers, or other protein therapeutics

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: $146,540.00 - $189,640.00. 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, genetic 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 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 ApplicantAccommodations@gilead.com  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.

Job details

Seniority
Not listed
Function
Drug Discovery & Preclinical Research
Therapeutic area
Not listed
Location
Foster City, United States
Employment type
Full time

How this role compares

Computed from every other active Drug Discovery & Preclinical Research role in our database, not just this employer's listings.

We currently track 913 comparable Drug Discovery & Preclinical Research roles across 88 biopharma companies.

913Comparable roles tracked
843Currently active
88Companies hiring similar roles
32Countries represented

Salary context

357 of 913 peers report a salary range (USD, annualized)

Peers share this role's job function. This posting doesn't list a seniority level, so peers aren't narrowed by seniority either -- the range below may span more levels than usual.

This roleSubject $146,540/yr – $189,640/yr
Highest disclosed · Vice President, Therapeutics Immunology · ModernaTX, Inc. $272,200/yr – $490,100/yr
Peer group range $0 – $381,150 (median $155,000)

Where these roles are based

Top locations among the 913 comparable roles

United States625
China44
Germany36
Switzerland31
United Kingdom29
France28

+ 26 more countries

Seniority mix

660 of 913 peers have a known seniority level

Senior222
Principal146
Intern/Fellow/Postdoc72
Director63
Associate58
Associate Director33
Manager27
Senior Director24
Executive/VP15

Therapeutic area mix

119 of 913 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Immunology49
Oncology38
Neuroscience16
Cardiovascular / CVRM9
Respiratory3
Rare Disease2
Vaccines & Infectious Disease2

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

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Notify me about similar jobs

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How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

40%
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Function Therapeutic area Seniority Country
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Function Therapeutic area Seniority Country
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Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.