Senior Applied AI Engineer

What You'll Do

• Train and fine-tune open source models, leveraging our vast proprietary dataset to push accuracy beyond what off-the-shelf models can do.
• Build eval datasets and pipelines that let us measure model accuracy rigorously and improve it continuously.
• Design how we measure accuracy in the first place: the metrics, harnesses, and feedback loops that turn real clinical outcomes into measurable model improvements.
• Build scalable, cost-efficient inference infrastructure with great monitoring and observability.
• Build better agentic infrastructure and partner on the interfaces that turn model capability into a great clinician experience.
• Stay at the frontier: keep up with the latest research, frontier model capabilities, and open source frameworks, and bring the best of it into production.
• Prototype quickly, then harden into scalable, secure, and reliable production systems.

You Might Be a Good Fit If You Have

• 7+ years of professional software engineering experience, with meaningful depth in AI/ML.
• Experience training, fine-tuning, or evaluating LLMs and open source models, with real opinions about what works and what does not.
• Shipped real AI software to real users. You can describe something you built, what broke, and how you fixed it.
• Strong instincts for evals, observability, and the feedback loops that turn user feedback into measurable improvement.
• Experience building agentic systems: tool use, generator and critic loops, planners and executors, and orchestration where one agent's output drives another's work.
• Comfort building infrastructure that is fast, reliable, and cost-efficient at scale.
• Startup experience shipping real features in high-growth environments.
• A product mindset, comfort across the stack, and the ability to operate in ambiguity without a clean spec.
• High standards for reliability and accuracy when real clinicians and patients depend on your work.

Why Join Us?

• Platinum health, dental, and vision insurance
• Flexible PTO
• Be at the forefront of LLM innovation in healthcare
• Founded by AI Researchers from Cornell and Amazon Alexa
• Make a tangible difference in the lives of clinicians and patients
• Work on a mission that matters, backed by AI innovation and top-tier investors