# Sr. Data Scientist, Assay Development at Delfidiagnostics

- Company: Delfidiagnostics
- What the company does: FirstLook Lung is a blood-based test that helps identify lung cancer risk before or alongside LDCT, for USPSTF-eligible adults. From DELFI Diagnostics. Backed by Menlo.
- Company website: https://delfidiagnostics.com/
- Type: Startups
- Level: Senior
- Location: Palo Alto, CA
- Work setup: Hybrid
- Pay: $130K to $170K base salary per year (USD)
- Posted: 2026-08-28
- Apply by: 2026-10-12
- Apply: https://jobs.lever.co/delfidiagnostics/3c56c4e9-e28e-4288-aace-b644a13753a1
- Page: https://www.1752.vc/careers/jobs/delfidiagnostics-sr-data-scientist-assay-development/

## About the role

The Senior Data Scientist will collaborate with a cross-functional team of laboratory scientists, clinicians, engineers, and other data scientists to develop statistical analysis methods supporting early cancer detection assays. This role spans assay development, analytical validation, and QC and control strategy, contributing to products advancing through verification, validation, and regulatory submission toward clinical use.

## What they're looking for

- Master's degree in Applied Math, Statistics, Bioinformatics, Engineering, or a related quantitative field, PhD preferred
- Five or more years of practical experience in scientific or mathematical data analysis, with at least three years in Python (numpy, pandas, and similar)
- Strong foundations in probability theory and statistics, including hypothesis testing, confidence intervals, parameter estimation, and variance components
- Experience working in a regulated diagnostics environment (IVD, LDT, or similar), including designing and executing rigorous studies and analyses and documenting them appropriately
- Ability to connect assay chemistry to data behavior, applying this understanding to troubleshoot assay performance issues

Tags: Data Science