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Principal Scientist, Protein Therapeutics – Mammalian Expression & Cell Line Engineering

Job in Thousand Oaks, Ventura County, California, 91362, USA
Listing for: Amgen Inc. (IR)
Full Time position
Listed on 2026-02-19
Job specializations:
  • Research/Development
    Research Scientist, Biotechnology, Data Scientist
Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR
Job Description & How to Apply Below
Principal Scientist, Protein Therapeutics – Mammalian Expression & Cell Line Engineering page is loaded## Principal Scientist, Protein Therapeutics – Mammalian Expression & Cell Line Engineering remote type:
On Site locations:
US - California - Thousand Oakstime type:
Full time posted on:
Posted Todayjob requisition :
R-236346##
** 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.
** Principal Scientist, Protein Therapeutics – Mammalian Expression & Cell Line Engineering
**** What you will do
** Let’s do this. Let’s change the world. In this vital role you will join the Protein Therapeutics organization within Research. This role will provide scientific and technical leadership in mammalian expression and cell line engineering to support the discovery and optimization of large-molecule therapeutics, including antibodies, bispecific, and next-generation protein modalities.

This is a senior individual contributor role with no direct reports.

The successful candidate will be a recognized technical expert and scientific leader who drives innovation in mammalian expression systems, cell line engineering strategies, and enabling technologies, with a strong emphasis on data-driven decision making and automation-enabled workflows.
** Key Responsibilities
**** Scientific Leadership and Innovation
*** Serve as a scientific leader and subject matter expert in mammalian expression and cell line engineering, influencing technical strategy across protein therapeutic programs.
* Champion innovative approaches in mammalian expression, host cell engineering, and expression construct design to improve productivity, quality, and speed.
* Identify, develop, and implement new technologies, platforms, and automation solutions that enhance robustness, scalability, and throughput of expression workflows.
** Technical Execution, Data, and Problem Solving
*** Execute wet laboratory experiments to express therapeutic proteins in mammalian cells both in high throughput bench-scale productions and medium-scale shake flask productions.
* Solve high-impact, technically complex problems related to expression, post-translational modification, stability, and develop ability.
* Apply data-driven approaches to optimize expression systems and processes.
* Partner closely with informatics and automation teams to enable high-throughput, reproducible, and scalable workflows.
** Collaboration and Influence
*** Work effectively across functions including protein engineering, molecular biology, analytics, process development, and data sciences to advance programs.
* Provide technical guidance and mentorship to scientists within and outside the immediate group, without direct line management responsibility.
* Represent the mammalian expression and cell engineering function on project teams, governance forums, and internal scientific reviews.
** External Awareness and Scientific Impact
*** Maintain deep awareness of external scientific and technological advances in mammalian expression, cell engineering, automation, and data-enabled biology.
* Contribute to Amgen’s scientific reputation through publications, patents, presentations, and participation in internal and external scientific forums.
* Evaluate and influence external…
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