Peter's research focuses on developing computational and statistical methods for single‑cell genomics to uncover cellular heterogeneity and regulatory mechanisms in development, immunity, and disease. His work spans algorithm design, integrative analysis of large‑scale single‑cell data, and translational applications in precision medicine.

He has authored numerous highly cited publications that have shaped the field of single‑cell analysis and computational genomics. Since his time in Harvard Medical School and Altos Labs, his lab continues to advance methods that enable deeper insight into complex biological systems and inform therapeutic discovery.

Peter is currently a visiting fellow at the Institute of Molecular Biotechnology in Vienna, Austria.