Senior Scientist, Discovery Pharmacology

Senior Scientist, Discovery Pharmacology Altos Labs Operations San Francisco, CA, USA USD 176k-225,700 / year Posted on Apr 22, 2026 Apply now Our Mission Our mission is to restore cell health and resilience through cell rejuvenation to reverse disease, injury, and the disabilities that can occur throughout life. For more information, see our website at altoslabs.com.

Our Value Our Single Altos Value:

Everyone Owns Achieving Our Inspiring Mission . Diversity at Altos Altos Labs has been named one of the Top 3 Biotech Companies and ranked for the second year on the Forbes 2026 Best Startups in America list. At Altos, exceptional scientists and industry leaders from around the world work together to advance a shared mission. Our intentional focus is on Belonging, so that all employees know that they are valued for their unique perspectives. We are all accountable for sustaining a diverse and inclusive environment. What You Will Contribute To Altos At Altos, your work will be at the heart of a mission to transform medicine by reversing disease and restoring cell health. You will contribute to the development of a new generation of drugs rooted in an advanced understanding of cellular rejuvenation and resilience. As a Sr Scientist of Discovery Pharmacology team, your primary focus will be supporting the in vitro pharmacology needs of the Drug Discovery and Development (3DS) division of Altos. This is a laboratory research scientist position focused on the development and execution of cell-based and biochemical assays, and complex in vitro models. Your work will contribute to our drug discovery campaigns across a diverse portfolio of drug discovery and development stage projects. Your expertise will be instrumental in driving our mission and making a significant impact in aging/rejuvenation biology and drug discovery. Responsibilities Investigate and validate drug targets, define mechanisms of action (MoA) through robust pharmacology strategies. Design, automate, and troubleshoot all kinds of assays. Analyze data and present it to help make project decisions. Keep great records in the electronic lab notebook (ELN), ensure reproducibility and data integrity. Work with people across different teams, including the Product Development crew. Who You Are Required Qualifications A Ph.D. (Pharmacology, Bio, etc.) plus at least 6 years of post-PhD experience AND 3+ years industry experience in drug discovery and development. You need to be able to design your own experiments and get solid, repeatable results. Major experience with cellular and biochemical assays and complex in vitro models. You must be a pro with lab automation and high-throughput techniques (think Bravo, Echo, I.DOT, and tech like MSD, HTRF, AlphaLISA). Good communication skills and you're fast, organized, and can handle a lot. Experience working with outside labs (CROs) is also required. Preferred Qualifications Experience with high-content imaging in high-throughput settings (96

• and 384-wells).

Worked with different drug types (small molecules, nucleic acids, gene therapies). Knowledge of aging/rejuvenation biology is a huge plus. Screening experience with various modalities (small molecules, si

RNA, ASO

). Familiarity with microfluidics assays. The salary range for

Redwood City, CA:

Senior Scientist I, In Vitro Pharmacology $ 176,000

• $225,700 Exact compensation may vary based on skills, experience, and location. For UK applicants, before submitting your application:
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• This Privacy Notice is not a contract, express or implied and it does not set terms or conditions of employment.

#LI-NN1 Equal Opportunity Employment We value collaboration and scientific excellence. We believe that a culture of belonging are foundational to scientific innovation and inquiry. At Altos Labs, exceptional scientists and industry leaders from around the world work together to advance a shared mission. Our intentional focus is on Belonging, so that all employees know that they are valued for their unique perspectives. We are all accountable for sustaining an inclusive environment. Altos Labs provides equal employment opportunities to all employees and applicants for employment, without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Altos prohibits unlawful discrimination and harassment. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. Thank you for your interest in Altos Labs where we strive for a culture of scientific excellence, learning, and belonging.

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