[< BACK]
// POSTED: May 4, 2026

Sr. Principal Scientist - Project Toxicologist

APPLY NOW

Career Category

Scientific

Job Description

Join Amgen’s Mission of Serving Patients

At Amgen, if you feel like you’re part of something bigger, it’s because you are. Our shared mission—to serve patients living with serious illnesses—drives all that we do.

Since 1980, we’ve helped pioneer the world of biotech in our fight against the world’s toughest diseases. With our focus on four therapeutic areas –Oncology, Inflammation, General Medicine, and Rare Disease– we reach millions of patients each year. As a member of the Amgen team, you’ll help make a lasting impact on the lives of patients as we research, manufacture, and deliver innovative medicines to help people live longer, fuller happier lives.

Our award-winning culture is collaborative, innovative, and science based. If you have a passion for challenges and the opportunities that lay within them, you’ll thrive as part of the Amgen team. Join us and transform the lives of patients while transforming your career.

Sr. Principal Scientist - Project Toxicologist

What you will do

Let’s do this. Let’s change the world. In this vital role, you will serve as the primary interface between Translational Safety & Risk Sciences (TSRS) and cross‑functional project teams, from early discovery through post-marketing. TSRS at Amgen is seeking a Senior Principal Scientist to serve as a Project Toxicologist and Subject Matter Expert, reporting to a Project Team Representative (PTR) Manager.

You will be responsible for developing and implementing fit-for-purpose nonclinical safety strategies built on a rigorous scientific foundation and aligned with regulatory expectations. As programs evolve, you will flexibly adapt strategies in response to emerging data, and project team needs while leading multidisciplinary TSRS teams.

As a PTR, you will partner closely with project teams developing innovative therapeutics across a range of modalities—including biotherapeutics (e.g. T cell engagers and antibody-drug conjugates), small molecules, targeted protein degraders, and other complex modalities (e.g. RNA-based therapies) for indications in inflammation, rare diseases, oncology, and cardiometabolic diseases, including obesity. PTRs are encouraged to develop subject matter expertise in a specific modality, therapeutic area, or sub-discipline within nonclinical safety (e.g. organ/system-specific toxicity).

Key Responsibilities

What we expect of you

We are all different, yet we all use our unique contributions to serve patients. The dynamic professional we seek is a leader with these qualifications.

Basic Qualifications:

Doctorate degree PhD OR PharmD OR MD and 3 years of experience as project team representative (PTR) for nonclinical safety sciences within drug development teams

Or

Master’s degree and 6 years of PTR experience

Or

Bachelor’s degree and 8 years of PTR experience

Preferred Qualifications:

·Emerging or developed recognition as a national and/or international field expert.

What you can expect of us

As we work to develop treatments that take care of others, we also work to care for your professional and personal growth and well-being. From our competitive benefits to our collaborative culture, we’ll support your journey every step of the way.

The expected annual salary range for this role in the U.S. (excluding Puerto Rico) is posted. Actual salary will vary based on several factors including but not limited to, relevant skills, experience, and qualifications.

In addition to the base salary, Amgen offers a Total Rewards Plan, based on eligibility, comprising of health and welfare plans for staff and eligible dependents, financial plans with opportunities to save towards retirement or other goals, work/life balance, and career development opportunities that may include:

Apply now and make a lasting impact with the Amgen team.

careers.amgen.com

In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.

Application deadline

Amgen does not have an application deadline for this position; we will continue accepting applications until we receive a sufficient number or select a candidate for the position.

Sponsorship

Sponsorship for this role is not guaranteed.

As an organization dedicated to improving the quality of life for people around the world, Amgen fosters an inclusive environment of diverse, ethical, committed and highly accomplished people who respect each other and live the Amgen values to continue advancing science to serve patients. Together, we compete in the fight against serious disease.

Amgen is an Equal Opportunity employer and will consider all qualified applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, or any other basis protected by applicable law.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

.

Salary Range

168,392.65USD -227,825.35 USD
Interested in this role?Apply on iHire