# Principal Associate Scientist, Bioanalytical Science at Xaira

- Company: Xaira
- What the company does: We’re pioneering the discovery and development of life-changing medicines through the transformative power of artificial intelligence. Backed by Lightspeed, NEA and Sequoia.
- Company website: https://xaira.com/
- Type: Startups
- Level: Principal and up
- Location: South San Francisco, California, United States
- Work setup: On-site
- Pay: $110K to $138K base salary per year (USD)
- Posted: 2026-08-30
- Apply by: 2026-10-14
- Apply: https://job-boards.greenhouse.io/xairatherapeutics/jobs/5226047007
- Page: https://www.1752.vc/careers/jobs/xaira-principal-associate-scientist-bioanalytical-science/

## About the role

We offer a competitive compensation and benefits package, seeking to provide an open, flexible, and friendly work environment to empower employees and provide them with a platform to develop their long-term careers. A Summary of Benefits is available for all applicants. We offer a competitive package that includes base salary, bonus, and equity.

## What they're looking for

- B.S. or M.S. in Biochemistry, Immunology, Analytical Chemistry, or a related field with 7+ years of relevant industry experience
- Strong hands-on experience with ligand binding assay platforms (ELISA, MSD/ECL)
- Proven experience executing flow cytometry-based assays, ideally for receptor occupancy or target engagement
- Experience supporting PK/PD sample analysis across NHP and/or rodent species in a discovery or translational research setting
- Ability to independently execute experiments and troubleshoot technical issues
- Past experience with summarizing data and presenting to internal or external groups

Tags: Biology & Pharmacology