
Ataraxis AI provides clinicians with AI-driven prognostic and predictive diagnostics to guide cancer treatment selection and personalize care. The company analyzes multi-modal patient data—including…

Ataraxis AI provides clinicians with AI-driven prognostic and predictive diagnostics to guide cancer treatment selection and personalize care. The company analyzes multi-modal patient data—including…
What they do: AI-driven prognostic and predictive diagnostics to guide cancer treatment and personalize care
Flagship product: Ataraxis Breast — AI-native prognostic test for breast cancer (clinically validated)
Stage & funding: Clinical-stage; $20.4M Series A announced March 5, 2025 (prior $4M seed)
Origins: Spun out of New York University (founded 2023)
Founders / leadership: Jan Witowski, MD PhD (CEO & Co‑founder); Krzysztof Geras, PhD (Chief Scientist & Co‑founder)
Cancer diagnostics and precision oncology; prognostic and predictive testing to guide treatment selection
2023
Biotechnology
4000000
Seed round following NYU spinout
20400000
Series A to accelerate clinical deployment; participation from Thiel Bio, Founders Fund, Floating Point, Bertelsmann Investments, Giant Ventures, Obvious Ventures, and angel/strategic backers
“AIX Ventures led Series A with participation from well‑known healthcare and AI investors (Thiel Bio, Founders Fund, Floating Point, Bertelsmann Investments, Giant Ventures, Obvious Ventures) and angel/strategic backers”
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About Ataraxis AI Ataraxis is an AI precision medicine company working at the intersection of multi-modal artificial intelligence and oncology. We develop and deploy AI-native tools to assist physicians in selecting the most optimal treatments for their patients.
Our mission is to change how cancer is treated and impact at least 50% of new cancer cases by 2030. We have already launched our first products, including the Ataraxis™ Breast platform for breast cancer, and help cancer patients get the most appropriate treatment every day. We work with the best academic institutions in the United States as well as small community clinics to deliver better care with frontier technology.
At Ataraxis, you will have a unique opportunity to shape not only the future of our company, but also the future of healthcare. You will join an exceptional team at the forefront of healthcare-focused AI research and deployment. As a frontier AI lab, we bring together leading AI researchers, medical doctors, and industry veterans. Our advisors include AI pioneers such as Yann LeCun and distinguished oncologists from top cancer research institutions, all united by the mission to redefine precision medicine.
Ataraxis has raised $24 million in funding, including a $20.4 million Series A in early 2025 led by top venture capital funds such as AIX Ventures (Hugging Face, Perplexity), Thiel Capital, Founders Fund (OpenAI, SpaceX, Palantir, Oscar Health), and Obvious Ventures (Recursion).
We are an company with a flat organizational structure, where every team member is empowered to actively contribute. Leadership roles are earned by those who demonstrate initiative and consistently deliver exceptional results. Strong work ethic and the ability to prioritize ruthlessly are essential.
Responsibilities
Qualifications
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