Ataraxis AI, Inc.

Transforming Cancer Care with AI Precision Medicine

Ataraxis AI is a New York-based precision medicine startup focused on fundamentally changing how cancer is diagnosed and treated. Founded in 2023 by Dr. Jan Witowski and Dr. Krzysztof Geras, the company develops AI foundation models that integrate multi-modal patient data—including digital pathology and clinical variables—to predict cancer recurrence risk and treatment response. Their first offering, Ataraxis Breast, is the world's first AI-native prognostic platform for breast cancer, clinically validated to outperform standard genomic assays by 30%. With a recent $20.4 million Series A backed by AIX Ventures, Founders Fund, and Peter Thiel, Ataraxis aims to impact at least 50% of new cancer cases by 2030.

A Culture of Frontier Research and Clinical Impact

Ataraxis operates at the intersection of deep tech and oncology, bringing together leading AI researchers, medical doctors, and industry veterans. The company maintains a flat organizational structure where every team member is empowered to contribute, and leadership is earned through initiative and results. Their culture emphasizes a strong work ethic and "ruthless prioritization." With AI luminaries like Yann LeCun advising the team and leading researchers from OpenAI and DeepMind participating in their funding, the environment is highly rigorous, academic, yet laser-focused on real-world clinical deployment.

What You'll Actually Do

Depending on your role, you'll either be pushing the boundaries of AI or driving its adoption in clinics. Research Scientists and AI engineers focus on designing novel machine learning models for self-supervised learning, survival analysis, and multi-modal learning using PyTorch, translating cutting-edge papers into production-ready code for their foundation models like Kestrel and Falcon. Commercial team members, such as Oncology Specialists and Account Executives, spend their time prospecting and building relationships with oncologists, educating them on how Ataraxis Breast can personalize treatment plans, and navigating the complex healthcare sales cycle.

Compensation & Benefits

Ataraxis offers competitive compensation combined with generous equity and benefits. For AI roles, such as Research Scientist, the base salary ranges from $120K to $210K, depending on experience and location. The comprehensive benefits package includes medical, dental, and vision insurance for employees and their families, a 401(k) plan with matching, and generous PTO. They also offer visa sponsorship for exceptional candidates and emphasize rapid career advancement.

The Interview Process

While specific interview rounds are not widely publicized, candidates can expect a rigorous process tailored to their discipline. AI and research roles likely involve deep technical assessments in machine learning, statistics, PyTorch, and discussions around published papers, especially given their preference for candidates with A* conference publications (e.g., ICML, NeurIPS). Commercial roles will likely focus on past performance in oncology sales, specifically breast cancer, and the ability to articulate complex clinical value propositions to medical professionals.

Why Join / Why Not

Why Join: If you want your work in AI to have a direct, life-saving impact on cancer patients, Ataraxis offers a rare opportunity. You'll be working with frontier models (like their 1.1B parameter Vision Transformer, Falcon) alongside top-tier talent and advisors in a well-funded, fast-moving environment.

Why Not: The company expects a strong work ethic and the ability to thrive in a flat, fast-paced startup where you must "prioritize ruthlessly." If you prefer a highly structured corporate environment or are not comfortable with the regulatory and commercial complexities of the healthcare and biotech industries, this might not be the right fit.