Senior Scientist Quantitative LC-MS Protein Bioanalysis
- Employer
- Amgen
- Location
- South San Francisco, California
- Posted date
- Sep 28, 2026
View more categories
- Discipline
- Science/R&D, Biotechnology
- Required Education
- Masters Degree/MBA
- Position Type
- Full time
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Job Details
Join Amgens Mission of Serving Patients
At Amgen, if you feel like youre part of something bigger, its because you are. Our shared missionto serve patients living with serious illnessesdrives all that we do.
Since 1980, weve helped pioneer the world of biotech in our fight against the worlds toughest diseases. With our focus on four therapeutic areas Oncology, Inflammation, General Medicine, and Rare Disease we reach millions of patients each year. Amgen is advancing a broad and deep pipeline of medicines to treat cancer, heart disease, inflammatory conditions, rare diseases, and obesity and obesity-related conditions. As a member of the Amgen team, youll 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, youll thrive as part of the Amgen team. Join us and transform the lives of patients while transforming your career.
What you will do
Lets do this. Lets change the world. In this vital role, you will join the Pharmacokinetics & Drug Metabolism Bioanalytical Sciences (PKDM-BA) group to advance Amgens growing research portfolio. The successful candidate will develop and apply innovative, fit-for-purpose LC-MS-based bioanalytical assays for characterization of endogenous proteins, including distinct proteoforms and target-drug complexes. These assays will be used to assess target abundance, target engagement, protein turnover, subcellular trafficking kinetics, protein-protein interactions, and etc., across discovery and development programs. This scientist will be expected to identify the appropriate analytical approach for each biological question and develop new workflows when existing methods are insufficient.
The PKDM-BA team works in close partnership with cross-functional teams to support candidate selection, preclinical development, clinical evaluation, and regulatory submissions, including IND and NDA filings.
Key Responsibilities
Develop, optimize, and perform fit-for-purpose quantitative LC-MS assays to measure target proteins for the assessment of target abundance, target engagement, protein turnover, subcellular trafficking kinetics, protein-protein interactions, and etc.
Design and implement innovative bioanalytical strategies and workflows that support mechanistic understanding of drug-target interactions, pathway modulation, pharmacodynamic responses, and biomarker kinetics.
Apply quantitative mass spectrometry-based workflows to support studies in complex biological matrices, including plasma, tissue, and in vitro systems.
Develop and adapt sample preparation, enrichment, and LC-MS workflows based on the intended biological question and assay requirements, balancing sensitivity, selectivity, robustness, and turnaround time.
Independently troubleshoot assay development, sample preparation, data quality, and LC-MS instrument performance issues.
Collaborate with cross-functional project teams to interpret bioanalytical data in the context of PK/PD, translational biomarkers, target biology, and mechanisms of action.
Maintain accurate electronic laboratory notebook records, prepare technical reports, and communicate scientific results clearly to project teams and stakeholders.
What we expect of you
We are all different, yet we all use our unique contributions to serve patients. The scientific professional we seek will bring strong quantitative bioanalytical expertise, hands-on LC-MS experience, scientific curiosity, and a commitment to advancing development of innovative therapeutics through rigorous measurement of drug, target, and biomarker biology.
Basic Qualifications:
Doctorate degree in Analytical Chemistry, Biochemistry, Pharmaceutical Sciences, Chemical Biology, Proteomics, or a related discipline with strong LC-MS training
OR
Masters degree and 4 years of relevant experience
OR
Bachelors degree and 6 years of relevant experience
Preferred Qualifications:
Proven expertise in LC-MS method development and quantitative bioanalysis in complex biological matrices.
Experience developing and applying quantitative assays for therapeutics, target engagement, target modulation, target dynamics, and biomarker biology.
Hands-on experience with proteomics workflows, including peptide mapping, enzymatic digestion, protein-drug adduct identification, intact or subunit analysis, and quantitative protein or peptide assays.
Experience with sample preparation techniques such as biological matrix processing, tissue homogenization, immunoaffinity capture, and other fit-for-purpose bioanalytical approaches.
Experience with automated sample preparation platforms such as AssayMAP Bravo, Tecan, KingFisher, or related systems.
Hands-on experience with LC-MS platforms, including high-flow, micro-flow, or nano-flow LC systems, triple quadrupole, Q-TOF, and Orbitrap systems.
Ability to independently troubleshoot analytical methods, sample preparation workflows, data quality issues, and instrument performance.
Strong communication, collaboration, and data interpretation skills, with the ability to present complex analytical results to multidisciplinary project teams.
Company
We are all different, yet we have this in common: our mission to serve patients. This sense of shared purpose is key to our becoming one of the world’s leading biotechnology companies. It guides us as we continue to launch new medicines and reach millions of patients worldwide.
We live the mission.
We win together.
We thrive on continual challenge.
Our team of 22,000+ scientists and professionals worldwide bring distinct perspectives and experiences to all we do. We leverage our global talent to achieve together—to research, manufacture and deliver ever-better products and greater depth to our mission.
At Amgen, there is a strong correlation between our high level of diversity and performance. Because addressing issues with a wider range of perspectives and approaches leads to more creative problem-solving. Together, we’re transforming the promise of science and biotechnology into therapies that have the power to restore health.
Connect with us to explore how you can Win, Live, and Thrive at Amgen.
- Phone
- 805-447-1000
- Location
- Corporate Headquarters
One Amgen Center Drive
Thousand Oaks
California
91320-1799
