Head of Artificial Intelligence / Principal AI Research Scientist

Head of AI / Principal AI Research Scientist Location: Boston or San Francisco We are partnering with a well-funded, venture-backed neurotechnology company building one of the most ambitious AI platforms in the market today: a foundation model designed to learn directly from large-scale, real-world brain and behavioral data. This is a rare opportunity to become the first senior AI leader and architect a next-generation "world model" that treats neural activity as a high-dimensional language, with applications spanning predictive health, cognitive computing, and human-AI integration. What You'll Do • Design and train a large-scale foundation model from the ground up • Build the end-to-end AI stack, including data pipelines, training infrastructure, and deployment systems • Apply advanced techniques including Transformers, VQ-VAE, self-supervised learning, and world models • Lead the technical roadmap and hire the AI research and engineering team • Work closely with executive leadership and investors to define a category-defining platform What We're Looking For • Proven experience building large models from scratch (not just fine-tuning) • Deep expertise in LLMs, generative modeling, sequence modeling, and representation learning • Experience with world models, multimodal AI, or temporal systems • Strong technical leadership and a track record of hiring and mentoring teams • Credibility from top-tier AI labs, research organizations, or recognized startups Preferred Background • EEG, computational neuroscience, or biosignal modeling • Distributed training with PyTorch, DeepSpeed, or FSDP • PhD in Computer Science, Machine Learning, Applied Mathematics, or related field This role is ideal for someone who wants to build a transformational AI platform from first principles and establish a world-class research organization. Location: candidates can be based in Boston or San Francisco