James Sun

Observer
DISC Type : ci

Vice President, Bioinformatics at Tempus AI

Cambridge, Massachusetts, United States

Overview

James Sun is the Vice President of Bioinformatics at Tempus AI, leveraging deep expertise in genomics and AI. An MIT PhD graduate, his career includes leading the development of FDA-approved companion diagnostics at Foundation Medicine and pioneering early cancer detection methods at Harbinger Health.

He was the scientific lead for FoundationOne CDx, the first FDA-approved comprehensive genomic profiling companion diagnostic test for cancer patients.

Personality Overview

Assertive

Example Seeker

Curious

They often ask many questions and rely heavily on information and documentation.  They are generally strong communicators and are not easy to convince. They can sound friendly and charming but can quickly change gears to become inquisitive and probing.

Topics They Care About

AI in Drug Discovery
His work at Tempus AI focuses on leveraging real-world multimodal data to power and accelerate drug discovery and development.
Early Cancer Detection
At Harbinger Health, he led the development of algorithms and pipelines for early cancer detection from blood using genomic approaches.
Genomic Profiling
He has extensive experience developing key biomarker signatures and leading the development of comprehensive genomic profiling companion diagnostics.

Media Appearances

James has no verified media appearances

Work History

9-2025
Vice President, Bioinformatics at Tempus AI
6-2020 - 8-2025
Vice President, Bioinformatics at Harbinger Health
4-2018 - 6-2020
Senior Director, Head of Bioinformatics at Gritstone Oncology
6-2012 - 4-2018
Director, Biomarker and Companion Diagnostics Development at Foundation Medicine

Education

2006 - 2012
Doctor of Philosophy (PhD) from Massachusetts Institute of Technology
2005 - 2006
Master of Engineering (MEng) from Massachusetts Institute of Technology

More Information

Social Presence :

Prographics :

Exp : 13 Location : Cambridge, Massachusetts, United States Job Level : Senior Designation : Vice President, Bioinformatics at Tempus AI
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Insights For Selling To James

During A Call Or A Meeting

DO's

  • Help them realize that there is no personal risk in making this decision
  • Share testimonials from known people and give multiple examples of product value
  • Invite them for a social do but don’t rely solely on the relationship

DONT's

  • Don’t try to rush them into a decision, provide all necessary information first
  • Don’t be too objective but make sure to pad your storytelling with data points
  • Don’t brush off any concerns, take all questions seriously

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with James is

  • Clear proof of product value matters to them, followed by others' testimonials and rapport.
  • Will you ever get a clear answer from James

  • They are practical yet friendly, don’t expect a clear no very often.

Insights For Deal Planning

    How fast (or slow) will James move?

  • They like to analyze well and can take their time to reach any decisions.
  • Can James take some risk or not?

  • They systematically evaluate all decisions and are unlikely to take many risks.

You And James

Personality Compatibility


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