---
title: 'Member of Technical Staff, Causality at Ataraxis AI'
canonical: 'https://feeny.ai/job/member-of-technical-staff-causality-ataraxis-ai-new-york-2td82y9y651y'
type: 'job'
last_seen: '2026-09-13'
---

# Member of Technical Staff, Causality at Ataraxis AI

- **Company:** Ataraxis AI
- **Location:** New York, NY
- **Employment:** full-time
- **Posted:** 2026-08-10
- **Last confirmed live:** 2026-09-13
- **Apply:** https://jobs.ashbyhq.com/ataraxis-ai/4b8fd75f-d31d-4951-9ea5-2582c4394c27

## Job description

## About Ataraxis AI

Ataraxis is a clinical AI research lab working at the intersection of multi-modal AI and precision medicine. Our goal is to make disease predictable. To accomplish this, we develop new AI methods that predict patient outcomes and treatment response, and build clinical tools to assist physicians in selecting the most optimal treatments for their patients. Our AI research lab discovers and develops methods to recognize patterns and predict outcomes across complex, multi-modal clinical data. This spans our [causality](https://www.ataraxis.ai/research-causality) (Ataraxis™ Tau), [foundation model](https://www.ataraxis.ai/research---representation-learning) (Falcon and Kestrel for digital pathology), and [survival analysis](https://www.ataraxis.ai/research-survival-analysis) research. Our first clinical products, such as [Ataraxis™ Breast](https://www.ataraxis.ai/ataraxis-breast-overview) for breast cancer, already help patients get the most appropriate treatment across the best academic institutions and community clinics worldwide. 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 clinical AI research and deployment. Our advisors include AI pioneers such as our founding advisor, Yann LeCun, and distinguished oncologists from top cancer research institutions, all united by the mission to redefine precision medicine. Ataraxis has raised over $24 million in funding, including a $20 million Series A led by top venture capital funds such as Thiel Capital/Founders Fund (OpenAI, SpaceX, Palantir), Obvious Ventures (AMI Labs, Inceptive, Radical Numerics, Recursion), and AIX Ventures (Hugging Face, Perplexity). 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

- Design and implement novel causal inference methods for treatment effect modeling.
- Translate machine learning papers into production-ready code.
- Build robust model evaluation frameworks.
- Disseminate the results by co-authoring research papers and abstracts.
- Collaborate with a multidisciplinary team of engineers and scientists.
- Co-mentor junior members of the team.

## Qualifications

- PhD degree in causality, statistics or machine learning.
- Deep understanding of causal inference methods and concepts.
- Previous experience working with observational and randomized trial data.
- Passion for research, attention to detail and ability to drive tasks to completion. Strong preference will be given to candidates with papers in A* conferences (e.g. ICML, ICLR, NeurIPS, CVPR) or top-tier statistics and causality journals.
- Excellent understanding of core machine learning concepts.
- Excellent knowledge of the foundations of statistics, linear algebra, probability and machine learning.
- Excellent skills in Python and PyTorch.
- Experience in deep learning. Experience in survival analysis, multi-modal learning, domain adaptation, model interpretability and computational pathology is a bonus.
- Experience with medical data is a bonus.

## About Ataraxis AI

## Company Overview
- **One-liner**: Ataraxis AI is an AI precision medicine company developing clinically validated, AI-native diagnostic and prognostic tests to personalize cancer treatment decisions.
- **Entity Type**: Private (Series A)
- **Headquarters**: New York, New York, United States
- **Founded**: 2023
- **Founders**: Jan Witowski, MD PhD (CEO & Co-Founder) and Krzysztof Geras, PhD (Chief Scientific Officer & Co-Founder)

## Core Business
- **Primary industry/industries**: Healthcare / AI Precision Medicine / Cancer Diagnostics / Biotechnology
- **Target customers**: B2B; hospitals, cancer centers, health systems, and oncology clinicians
- **Mission or purpose statement**: "To completely personalize treatment by predicting patient outcomes and treatment response, developing novel AI methods applied to multi-modal data." [ataraxis.ai](https://www.ataraxis.ai/)

## Products & Services
- **Ataraxis Breast Suite**: A set of AI-native prognostic and predictive tests for breast cancer. The platform analyzes multi-modal patient data (digitized pathology slides, clinical records) to predict outcomes and treatment response without exhausting tissue. Includes:
    - **Ataraxis Breast**: The first clinically validated AI-native test for breast cancer, providing greater accuracy than standard-of-care genomic assays.
    - **Ataraxis Breast NEO**: A predictive test estimating the likelihood of pathologic complete response (pCR) to neoadjuvant therapy across all major breast cancer subtypes, including HER2-positive and triple-negative breast cancer. [cbinsights.com](https://www.cbinsights.com/company/ataraxis-1)
    - **Ataraxis Breast RISK**: For assessing recurrence risk.
    - **Ataraxis Breast CTX**: For chemotherapy benefit prediction.

## Market Standing
- **Valuation/Market Cap**: Not publicly available.
- **Key Metric**: Total Funding of **$24.4 million** across two rounds.
- **Notable Investors/Partners**:
    - **Lead Investors**: Giant Ventures (Seed), Obvious Ventures (Seed), AIX Ventures (Series A). [linkedin.com](https://www.linkedin.com/company/ataraxis-ai)
    - **Notable Advisor**: Yann LeCun, PhD (Chief AI Scientist at Meta, Turing Award winner). [ataraxis.ai](https://www.ataraxis.ai/about-us)
    - **Clinical Partners**: NYU Langone Health, Yale School of Medicine, Northwell Health Lenox Hill, and other top international cancer centers. [ataraxis.ai](https://www.ataraxis.ai/about-us)
- **Growth Signals**:
    - Headcount grew **73.9% year-over-year**, now at 32 employees. [linkedin.com](https://www.linkedin.com/company/ataraxis-ai)
    - Active job postings increased **100% year-over-year** and **500% quarterly**. [linkedin.com](https://www.linkedin.com/company/ataraxis-ai)
    - Launched new product (Ataraxis Breast NEO) in April 2026.
    - Scheduled presentations at ASCO 2026. [ataraxis.ai](https://www.ataraxis.ai/)

## Competitive Advantages
- **AI Foundation Model (Falcon)**: Trained on hundreds of millions of pan-cancer pathology slide images, enabling generalizable, multi-modal analysis that extracts novel morphological features correlated with patient outcomes. [ataraxis.ai](https://www.ataraxis.ai/)
- **Same-day Turnaround**: Results delivered within 24 hours of receiving patient data, compared to weeks for traditional genomic tests. [ataraxis.ai](https://www.ataraxis.ai/)
- **Tissue-Sparing Technology**: No additional tissue is consumed or exhausted during the analysis, preserving valuable biopsy samples for other uses. [ataraxis.ai](https://www.ataraxis.ai/)
- **World-Class Advisory & Research Backing**: Spun out of NYU, with leadership from top academic medical centers and a Turing Award-winning advisor.

## Strategic Focus
- **Clinical Expansion**: Launching new tests (NEO, RISK, CTX) within the breast cancer suite to cover the full care continuum from diagnosis to treatment selection.
- **Multi-Cancer Expansion**: Scaling the Falcon foundation model to develop tests for other cancer types.
- **Commercialization**: Building a commercial team (hiring Account Executives and Oncology Specialists) to drive adoption in US health systems. [linkedin.com](https://www.linkedin.com/company/ataraxis-ai)
- **Clinical Validation**: Continuing to publish data and present at major oncology conferences (ASCO 2026) to build evidence and trust.

## Why Work Here
- **High-Impact Mission**: Directly work on AI that improves cancer treatment decisions and patient outcomes.
- **Cutting-Edge Technology**: Work with state-of-the-art AI foundation models and multi-modal data at the intersection of AI and healthcare.
- **Talent Density**: Small, high-growth team (32 people) with deep expertise from NYU, Yale, Harvard, and former employees of top tech companies (Amazon, Microsoft). [linkedin.com](https://www.linkedin.com/company/ataraxis-ai)
- **Growth Trajectory**: Rapidly scaling company (73% headcount growth YoY) with significant recent funding, offering early-stage career growth opportunities.
- **Work Policy**: Based in New York, NY (169 Madison Ave). Specific remote/hybrid policy not publicly disclosed, but roles listed include New York and California locations.
- **Notable Perks**: Opportunity to learn from world-class scientists and clinicians, including a Turing Award-winning advisor.

## Sources
1. [ataraxis.ai (Company Homepage)](https://www.ataraxis.ai/)
2. [ataraxis.ai (About Us)](https://www.ataraxis.ai/about-us)
3. [linkedin.com (Company Page)](https://www.linkedin.com/company/ataraxis-ai)
4. [cbinsights.com (Company Profile)](https://www.cbinsights.com/company/ataraxis-1)

## Other roles at Ataraxis AI

- [Scientific Engagement](https://feeny.ai/job/scientific-engagement-ataraxis-ai-remote-vzbrhwgsm2mx)
- [Member of Technical Staff, Bayesian Statistics](https://feeny.ai/job/member-of-technical-staff-bayesian-statistics-ataraxis-ai-new-york-3fw28ympch12) — New York, NY
- [Member of Technical Staff, Survival Analysis](https://feeny.ai/job/member-of-technical-staff-survival-analysis-ataraxis-ai-new-york-kfswkp6jd8x5) — New York, NY
- [Member of Technical Staff, Principal Biostatistician](https://feeny.ai/job/member-of-technical-staff-principal-biostatistician-ataraxis-ai-new-york-933phjhepmxx) — New York, NY
- [Member of Technical Staff, Research Engineer](https://feeny.ai/job/member-of-technical-staff-research-engineer-ataraxis-ai-new-york-5wqxv8ztcf7n) — New York, NY
- [Member of Technical Staff, Computational Pathology](https://feeny.ai/job/member-of-technical-staff-computational-pathology-ataraxis-ai-new-york-p14nsnd0nsf4) — New York, NY
- [Member of Technical Staff, Foundation Models](https://feeny.ai/job/member-of-technical-staff-foundation-models-ataraxis-ai-new-york-1qjc7zxz4s1t) — New York, NY
- [Member of Technical Staff, Translational Science](https://feeny.ai/job/member-of-technical-staff-translational-science-ataraxis-ai-new-york-q1wts3vwvct5) — New York, NY
- [General Application](https://feeny.ai/job/general-application-ataraxis-ai-new-york-a3xe9mbvv9hv) — New York, NY