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Medical Affairs Lead
Medical Affairs LeadNucs AI • Toronto, ON, CA
Medical Affairs Lead

Medical Affairs Lead

Nucs AI • Toronto, ON, CA
30+ days ago
Job type
  • Full-time
Job description

About Nucs AI

Nucs AI is revolutionizing cancer care through cutting-edge AI and medical imaging technology. Founded in 2024 by a multidisciplinary team of oncologists, AI researchers, and healthcare innovators, we’re tackling one of medicine’s most pressing challenges: the growing demand for accurate, timely cancer diagnostics in the face of rising scan volumes and limited radiologist capacity.

We sit at the intersection of diagnostics and treatment planning—building AI-powered tools at the convergence of medical imaging, radioligand therapy, and artificial intelligence. Starting with prostate cancer and expanding across oncology, we partner with world-leading medical institutions and pharmaceutical companies across the US, Europe, and Australia to bring precision oncology into everyday clinical practice.

Our mission is to enhance diagnostic precision and expand access to expert-level cancer care, improving patient outcomes worldwide. We’re venture-backed, early-stage, and building a team that blends deep clinical expertise with engineering intensity—moving with the rigor the medical field demands and the speed the problem deserves.

The Opportunity

As Nucs AI’s clinical partnerships expand and our products move toward commercial deployment, this role drives the medical affairs engine—scientific communications, KOL engagement, clinical education, and product-market fit from a clinical perspective.

You’ll be the connective tissue between our clinical partners, product team, and the broader medical community. Working alongside the Medical Director and Associate Director of Medical Programs, you’ll translate clinical insights and study results into compelling scientific narratives, educational programs, and market-facing materials that build trust and drive adoption. You’ll also manage the medical annotation team—overseeing the clinicians and specialists who provide the ground-truth labels and expert annotations that underpin our AI models.

If you’re energized by translating clinical science into impact—through publications, presentations, training programs, and physician engagement—this is the role.

What You’ll Do

Scientific Communication & Publications

  • Lead preparation of scientific summaries, abstracts, posters, manuscripts, and conference presentations

  • Coordinate publication planning and execution in partnership with the Medical Director and external collaborators

  • Review all external-facing materials for clinical and scientific accuracy

  • Support regulatory documentation with clinical evidence summaries and scientific context

KOL Engagement & Clinician Education

  • Build and maintain relationships with Key Opinion Leaders, academic partners, and clinical collaborators

  • Develop and deliver training programs and educational materials for clinical users of Nucs AI products

  • Organize and support advisory boards, clinical workshops, and scientific symposia

  • Provide scientific support to commercial teams and clinical customers

Annotation Team Management

  • Manage and coordinate the medical annotation team—clinicians and imaging specialists responsible for ground-truth labeling and expert annotation of medical imaging data

  • Define annotation protocols, quality standards, and review workflows in collaboration with the Medical Director and ML team

  • Oversee annotator onboarding, training, calibration, and performance monitoring to ensure consistency and accuracy

  • Serve as the liaison between the annotation team and engineering/ML teams to ensure annotation outputs meet model training and validation requirements

Product-Market Fit & Clinical Strategy

  • Evaluate clinical workflows and identify opportunities to strengthen product-market fit

  • Collaborate with product teams on feature refinement based on clinical feedback and real-world use

  • Identify clinical growth opportunities and new indication pathways based on field insights

  • Synthesize competitive intelligence, clinical literature, and market trends into actionable recommendations

Clinical Evidence Support

  • Support clinical validation projects with literature reviews, evidence synthesis, and data interpretation

  • Monitor clinical outcomes data and translate findings into strategic product and positioning insights

  • Collaborate with the Associate Director of Medical Programs on study communications and dissemination



What You Bring

  • Bachelor’s or advanced degree in Medical Imaging, Medical Science, Life Sciences, or related field

  • 3+ years of experience in medical affairs, medical science liaison, or clinical communications

  • Strong scientific writing and data presentation skills; experience with peer-reviewed publications

  • Experience building relationships with KOLs and clinical research communities

  • Experience managing or coordinating clinical annotation, labeling, or data review teams

  • Excellent communication skills; able to bridge clinical, product, and commercial audiences

Bonus Points

  • Experience in nuclear medicine, PET/CT imaging, or oncology

  • Familiarity with AI/ML-driven clinical tools or health-tech products

  • Experience with medical image annotation platforms or ground-truth data pipelines for AI training

  • Experience with FDA or CE regulatory submissions

  • Published research or conference presentations in relevant domains

  • MSL certification or medical affairs professional development credentials

Why Nucs AI

  • Mission with real impact – Your work directly improves how cancer patients are diagnosed and treated.

  • Ground-floor opportunity – Early-stage company, meaningful equity, and outsized influence on the direction we take.

  • World-class collaborators – Work alongside leading oncologists, nuclear medicine physicians, and AI researchers globally.

  • Massive market tailwinds – Radioligand therapy and AI-driven oncology are multi-billion dollar growth markets.

  • Autonomy and flexibility – Remote-first, flexible working. We hire great people and trust them to deliver.

  • Equity upside – Competitive equity package. We’re building something big and want you to share in it.

How to Apply

Submit your resume and a brief note on why this role and Nucs AI excite you.

Equal Opportunity

Nucs AI is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all team members. All qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

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Medical Affairs Lead • Toronto, ON, CA

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