A

Ataraxis.ai

AI-powered prognostic test for breast cancer

Head of Business Development

Full-Time
$100k - $300k/yr
Expert
Master's
New York, NY, USA
Remote
Sales & Account ManagementBusiness Development & Partnerships

About the job

Requirements
  • At least 8 years of experience in pharmaceutical and/or diagnostics business development, either within a pharmaceutical company or at a diagnostics or technology company selling into pharma.
  • A documented track record of leading or co-leading pharma deals in companion diagnostics, biomarkers, patient stratification, or similar; if not formally leading one, evidence of being pivotal in completing a deal.
  • Experience building a pharma partnership pipeline from scratch or deciding from the pharma side which partnerships received funding.
  • Fluency in how pharma makes partnership decisions, including decision-makers, business-unit budget ownership, and how deals are advanced.
  • Existing relationships across large and mid-cap oncology pharma that can be activated.
  • Comfort with deep technical material and a history of identifying non-obvious applications for it.
  • Bias for action.
Responsibilities
  • Build Ataraxis's pharma partnership business from the ground up, owning pharma as a revenue stream alongside the diagnostics business.
  • Identify target companies, map the decision unit within each, conduct outreach, and lead negotiations through signature.
  • Construct applications of the technology against each company's development pipeline and translate them for scientific, clinical, and business audiences.
  • Build and maintain relationships with pharma stakeholders who sponsor and fund partnerships.
  • Bring pharma priorities and unmet needs back to research and product teams.
  • Work with research, clinical, product, and legal teams to scope commitments, structure terms, and execute agreements.
  • Work directly with the CEO on pipeline, forecast, and deal strategy.
Desired Qualifications
  • MD, PhD, PharmD, NP, or a Master’s degree in cancer biology, molecular biology, cell biology, biomedical sciences, pharmacology, pharmaceutical sciences, or a related life sciences field.

About the company

Ataraxis.ai creates precision medicine tools for cancer care using artificial intelligence. Its first product, Ataraxis Breast, is an AI-native prognostic test for breast cancer designed to predict patient outcomes more accurately and help doctors personalize treatment plans. Results are delivered quickly, within one business day, through a physician portal or to clinicians. The company differentiates itself by offering an AI-driven prognostic test that aims to set a new standard in molecular diagnostics rather than relying on traditional methods alone, with a focus on rapid, actionable insights for oncology. The goal is to improve how cancer treatment decisions are made by providing fast, data-driven prognostic information to physicians and healthcare providers.

Company Size

11-50

Company Stage

Series A

Total Funding

$44.8M

Headquarters

New York City, New York

Founded

2023

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Simplify's Take

What believers are saying

  • Ataraxis launched ARC in 2026, creating prospective evidence for broader commercialization.
  • California licensure and CAP accreditation expanded access for clinicians and patients statewide.
  • The $20.4 million Series A funded breast test launch and expansion into solid tumors.

What critics are saying

  • Exact reimbursement remains undisclosed, so 2026 revenue depends on clinician adoption and self-pay demand.
  • Tempus and Foundation Medicine already own oncology workflows, pressuring Ataraxis's sales cycle.
  • If Breast test performance disappoints in prospective ARC studies, Ataraxis loses its entire platform thesis.

What makes Ataraxis.ai unique

  • Ataraxis Breast uses causal multimodal AI, not generic pathology scoring, across CTX and NEO.
  • The platform validated on TAILORx, UNIRAD, and 11,135 patients across 17 cohorts.
  • CAP-accredited, California-licensed laboratory delivery makes Ataraxis a regulated, clinic-ready diagnostics vendor.

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Benefits

  • Company Equity

Growth & Insights and Company News

Headcount

6 month growth

43%

1 year growth

43%

2 year growth

43%
Epium Ltd
Sep 18th, 2026
Ataraxis AI unveils models for cancer treatment prediction.

Ataraxis AI unveils models for cancer treatment prediction. Ataraxis AI announced a new generation of models built to predict treatment response and patient outcomes, with an initial focus on breast cancer and broader testing across solid tumors. The company said the models can generalize zero-shot from breast cancer to multiple solid tumors, positioning the work as a step toward more personalized oncology treatment planning. The company is releasing three research papers, including a study on causal AI methods applied to predicting chemotherapy benefit and patient outcomes in breast cancer. The study covers 11,135 patients across 17 cohorts, followed by zero-shot generalization in 6,692 patients across 16 cancer types. Two additional papers report clinical validation in TAILORx Phase III trial and UNIRAD Phase III trial. Ataraxis said TAILORx Phase III trial results confirmed statistically significant chemotherapy benefit predictions, while UNIRAD Phase III trial findings showed predictions of outcomes and treatment benefit in high-risk breast cancer, including benefit from everolimus. The models are based on causal AI methods that learn to simulate patient outcomes under counterfactual scenarios using longitudinal data. Ataraxis has incorporated those methods into Ataraxis Tau, an AI world model intended to support future tools for building personalized treatment plans across oncology. Originally reported by oncodaily.com Read the source

Newzchain
Aug 7th, 2026
Ataraxis AI raises $20M to predict cancer outcomes and reduce unnecessary chemotherapy

Ataraxis AI has raised $20.4 million in a Series A round led by AIX Ventures to commercialise its cancer treatment prediction technology. Thiel Bio, Founders Fund, Floating Point, Bertelsmann, Giant Ventures and Obvious Ventures also participated. The company previously raised $4 million in seed funding. The startup analyses high-resolution images of cancer cells using AI trained on hundreds of millions of images from thousands of patients. According to Ataraxis, its technology is 30% more accurate than current standards for breast cancer care. The funding will support the commercial launch of its first breast cancer test and expansion into other cancer types. Co-founded by Jan Witowski and NYU professor Krzysztof Geras, Ataraxis aims to help predict long-term cancer outcomes and potentially reduce unnecessary chemotherapy treatments.

Business Wire
Mar 30th, 2026
Ataraxis AI launches first predictive test estimating individualised chemotherapy benefit in breast cancer

Ataraxis AI has launched Ataraxis Breast CTX, an AI-powered test that estimates individualised chemotherapy benefit in breast cancer patients. The platform combines digitised pathology slides with clinical data to predict patient-level outcomes with and without adjuvant chemotherapy. The test was developed using multimodal data from over 10,000 breast cancer patients worldwide and validated across observational studies and randomised controlled trials. It has been adopted by top NCI-designated cancer centres and community clinics across the United States. Ataraxis Breast CTX uses the company's Tau causal inference layer to account for treatment selection bias. The platform aims to identify high-risk patients unlikely to benefit from chemotherapy, helping clinicians make more informed treatment decisions and potentially reduce overtreatment. The test is offered through a CLIA-certified laboratory.

Femtech Insider
Mar 14th, 2025
Ataraxis AI Raises $20.4M for Cancer Diagnostics

Ataraxis AI has raised $20 million in Series A funding to advance its AI precision medicine platform, focusing on Ataraxis Breast for breast cancer diagnostics. Led by AIX Ventures, the round included investors like Thiel Bio and Founders Fund. The Kestrel model, central to their platform, is 30% more accurate than current standards. The funding will aid in expanding treatment capabilities and developing new AI models, with plans to launch Ataraxis Breast in the U.S. later this year.

AlleyWatch
Mar 10th, 2025
Ataraxis AI raises $20.4M Series A

Ataraxis, an AI precision medicine company focused on cancer diagnostics, has raised $20 million in Series A funding led by AIX Ventures. Founded by Jan Witowski and Krzysztof Geras in 2022, Ataraxis has now raised a total of $24 million in reported equity funding.