This profile has not been claimed and data may not be accurate.
Founder32Current founder
42nd percentile
Investor19Current investor
63rd percentile
Combined
Serial founder and GP raising Charta Health after co-founding test.ai
Credibility
this founder typical founder (50th pct)
Traction · 78th percentile
- Current founder at Charta Health, Inc., confirmed by SEC Form D filing dated July 2025.
- Past co-founder of Appdiff, Inc. (test.ai), confirmed by SEC Form D filing.
- Appdiff, Inc. (test.ai) was co-founded alongside Jason Arbon and Ryan Castor.
- Raised a combined $41.1M across Appdiff, Inc. ($11.0M per SEC Form D) and Charta Health, Inc. ($30.1M per SEC Form D).
- Rockset was acquired by OpenAI, representing a confirmed exit from a company Justin Liu was associated with.
Relationship Matrix
Most Like You
Most Complimentary
Founder score
- 90%Probability of being accurate (90%)Past co-founder of Appdiff, Inc. (test.ai), confirmed by SEC Form D filing.
- 88%Probability of being accurate (88%)Raised a combined $41.1M across Appdiff, Inc. ($11.0M per SEC Form D) and Charta Health, Inc. ($30.1M per SEC Form D).
- 88%Probability of being accurate (88%)Current founder at Charta Health, Inc., confirmed by SEC Form D filing dated July 2025.
- 85%Probability of being accurate (85%)Appdiff, Inc. (test.ai) was co-founded alongside Jason Arbon and Ryan Castor.
- 62%Probability of being accurate (62%)Deep research credibility with an h-index of 27 across published works (OpenAlex).
- 62%Probability of being accurate (62%)Identified as a researcher on OpenAlex with 93 published works and 4,206 citations.
- 55%Probability of being accurate (55%)Rockset was acquired by OpenAI, representing a confirmed exit from a company Justin Liu was associated with.
Investor score
- 72%Probability of being accurate (72%)Named related person on a Vaughn & Liu LLC SEC Form D exempt-offering filing, confirming a fund manager or GP role.
- 65%Probability of being accurate (65%)Approximately two years of investing experience, beginning with the Venture Fellow role at REMUS Capital in late 2023.
- 50%Probability of being accurate (50%)Led pre-seed and seed rounds as a Venture Fellow at REMUS Capital, with at least two documented investments.
What you likely need
You'd get the most out of Festival events that put you in the room with health-tech Series A investors and clinical operators who can accelerate Charta Health's next raise and compliance roadmap. Dinners and roundtables that blur the line between founder and investor will also help you formalize the Vaughn & Liu narrative and attract LP relationships. Your OpenAI and MIT ML pedigree is a genuine differentiator — small technical founder gatherings where that signal travels fast are where you'll convert credibility into deal flow.
Would you attend these IRL Festival events?
We will tune and customize your Founder Festival experience to make sure you get invited to the events that would be most valuable to you.
- fundraisingA Series A health-tech founder dinner with partners from a16z Bio and General Catalyst where $20M–$50M-raise-stage founders pressure-test enterprise GTM narratives and warm each other to fund partners
- positioningAn OpenAI and Rockset alumni roundtable for founders who came up through OpenAI internships or the Rockset acquisition to swap exit-signal storytelling tactics and sharpen their public founder narratives
- introsA Harvard and MIT founder dinner curated through the REMUS Capital network to source early design-partner customers and co-investors for Charta Health's enterprise health-tech push
- tacticalA technical founder workshop for ML researchers-turned-founders with h-index credibility — think Hugging Face, Cohere, and Anyscale alumni — on converting published research and open-source tooling into enterprise buyer positioning and recruiting signal
- fundraisingAn emerging GP dinner for first-fund managers with SEC-registered vehicles like Vaughn & Liu LLC to workshop LP memo structures and get warm intros to institutional LPs already backing solo-GP and micro-fund vehicles
- hiringA health-tech founder hiring roundtable focused on recruiting clinical and regulatory co-leads, featuring founders who've navigated FDA clearance and HIPAA compliance milestones at companies like Olive AI, Cohere Health, and Commure
- tacticalAn Anyscale and distributed-inference alumni happy hour for founders who built open-source ML infrastructure tooling to swap build-in-public strategies that drive both developer recruiting and investor credibility
- positioningA small dinner for technically deep founders actively building both a venture-backed company and an early-stage fund vehicle — think founder-GPs at the $30M–$50M company stage — to sharpen the dual narrative for LPs, co-investors, and Series A funds simultaneously