Cheiron is a Stanford-based AI company building the AI-native operating system for drug development.

Biopharma knowledge work is structurally fragmented. Critical decisions depend on stitching together evidence across literature, clinical trials, regulatory precedent, and patents—spread across disconnected systems. Cheiron replaces this paradigm with a unified intelligence layer: our proprietary Lifesciences Knowledge Graph (LKG), which integrates and structures these data sources into a single, continuously evolving system of record.

On top of this foundation, Cheiron deploys workflow-native AI agents that execute real-world R&D, clinical, and regulatory tasks end-to-end—with full traceability and scientific rigor.

Since launching in 2024, Cheiron has achieved rapid global adoption. In Korea, we reached 22% of the biopharma knowledge workforce across 200+ organizations within six months. In the United States, within two months of launch, we onboarded thousands of professionals across hundreds of biopharma companies, driven by strong organic demand.

Cheiron is proudly pre-VC, backed by a $6M+ angel round from globally recognized investors, including leaders from the SK and Samsung families and co-authors of “Attention Is All You Need.”

As we scale our U.S. presence, we are expanding a deeply interdisciplinary team at the intersection of AI, life sciences, and real-world drug development workflows.

We are seeking a Medical Affairs Specialist to shape how scientific communication, evidence dissemination, and external engagement workflows are executed within Cheiron.

This role focuses on individuals who understand how medical insights are generated, validated, and communicated to external stakeholders (HCPs, KOLs, payers).

• Apply Cheiron to Medical Affairs workflows:
• Scientific narrative development
• Evidence synthesis for medical communications
• KOL engagement preparation
• Medical information response generation
• Evaluate AI outputs for:
• Scientific accuracy and balance
• Alignment with approved labeling and evidence
• Risk of misinterpretation or overstatement
• Structure frameworks for:
• Scientific storytelling and narrative construction
• Evidence hierarchy and citation standards
• Collaborate with product/AI teams to:
• Build agents for medical writing and insight generation
• Improve traceability and citation integrity
• Contribute to best practices for AI-assisted scientific communication
  

This role is designed for Medical Affairs professionals who understand how scientific evidence is translated into clear, accurate, and compliant communication.

• Medical Affairs professionals (MSLs, Medical Advisors, Medical Directors)
• Individuals experienced in medical communications, scientific narrative development, and evidence dissemination
• Professionals who regularly engage with KOLs, HCPs, and external stakeholders
• Medical writers or consultants with strong experience in evidence-based communication
  

• Experience in Medical Affairs, Medical Communications, or MSL roles
• Strong scientific writing and communication skills
• Experience interacting with clinical data and literature
• Understanding of compliance and promotional boundaries
  

This full-time role offers $200k - $250k in total compensation, including performance-based bonus. Compensation is determined by experience, expertise, and role alignment. Benefits include competitive healthcare, equity participation, and the opportunity to work closely with a world-class interdisciplinary team.