John Kim, PhD

Senior Bioinformatics Engineer

John develops cloud computing tools that use machine learning and AI to generate biological insights from large clinically relevant datasets.

John has worked in Next Generation Sequencing (NGS) and bioinformatics for over ten years in academic and industrial settings. He started his career at the University of California at Santa Cruz where he received the Chancellor’s fellowship for designing new sequencing assays and algorithms for diagnostics and immunology. After receiving his PhD in Bioinformatics and Biomolecular Engineering, he joined the Advanced Research group at Illumina. John played a critical role in launching Illumina’s single cell product by developing the accompanying cloud-based bioinformatics software and was given the CEO award for his contributions.

John departed from Illumina to make a significant impact on the fight against cancer by joining Grail as one of its founding members. At Grail, John led a team of data scientists, software engineers and statisticians as a bioinformatics technical lead. His team worked to gain a better understanding cell free nucleic acids and develop diagnostic products that detect cancer earlier than the current standard of care. John holds multiple patents and was an author on the first patent awarded to Grail. In addition, he has co-authored peer-reviewed publications on his work related to the early cancer detection from cell free nucleic acids.



  • PhD in Bioinformatics and Biomolecular Engineering from UC Santa Cruz
  • Over 10 years research experience in NGS, bioinformatics and data science