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Founding AI/Machine Learning Engineer

San Francisco, CA💼 Full-time🗓 2026-09-20 → 2026-09-25

Core

Architect and execute post-training pipelines (SFT, RLHF, RLAIF) for large language models to ensure clinical correctness and safety in healthcare applications.

Role type

Founding AI/Machine Learning Engineer (Post-Training & Alignment)

Builds

Production-ready alignment pipelines and evaluation frameworks for medical LLMs

Domain

Healthcare + Large Language Models (LLMs)

Deliverable

production ML models

Required skills

Post-training expertise (SFT, RLHF, RLAIF, Reward Modeling, Knowledge Distillation), Transformer architecture design, distributed training on GPU clusters, Python, PyTorch, modern open-source LLM stacks (HuggingFace, Vertex, Vercel)

Preferred skills

Published research in top-tier ML/AI conferences, experience at top research labs (FAIR, DeepMind, OpenAI, etc.), multimodal health data handling, entrepreneurial product building

Technologies

PyTorch, HuggingFace, Vertex AI, Vercel, GPU clusters

Responsibilities

Design and execute alignment pipelines bridging exam-passing models to clinically useful systems, leverage proprietary medical datasets for fine-tuning, research and implement novel post-training techniques, build rigorous evaluation frameworks to detect hallucinations and ensure safety, collaborate with co-founders on research roadmap and platform strategy

Seniority

Founding, hands-on IC with strategic ownership

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