About the job Founding ML Engineer

Location: San Francisco Bay Area (Hybrid) or Remote Experience Level: Senior / Lead Job Type: Full-Time

About the Role A venture-backed startup is building the world's first live, interactive AI video avatars think FaceTime with a brain. Combining LLMs, ML-generated video, and real-time infrastructure, were redefining how people interact with machines and with each other.

We're looking for a Founding ML Engineer to own and evolve the intelligent interaction layer the part that makes conversations feel real, personalized, and emotionally aware.

What You'll Build

- An agentic orchestration layer handling memory, context-switching, and real-time intent - Retrieval-Augmented Generation (RAG) pipelines for high-fidelity, grounded responses - Prompting frameworks optimized for real-time, emotionally intelligent conversation - Tooling for prompt lifecycle management: versioning, testing, and observability - Custom fine-tuning workflows for character-driven responses and identity preservation - Seamless collaboration with design, infra, and audio/video ML teams to deliver fluid user experiences You Might Be a Fit If You

- Have production experience with LLM-powered products, agentic systems, or RAG pipelines - Know LangGraph, CrewAI, or have built orchestration logic from scratch - Understand the strengths and limitations of prompt engineering - Have worked on model evaluation or fine-tuning focused on tone, coherence, or responsiveness - Think deeply about memory, persona, and narrative in human-AI communication - Want to help define the emotional intelligence layer of AI Why This Role Is Special

- Backed by top-tier investors, including Jeff Dean - Pre-launch product with early traction, user love, and clear product-market fit - Founding role with end-to-end influence: from infrastructure to conversational behavior - Team includes former engineers from OpenAI, Google, and AWS - You'll receive your own personal AI Confidant part hype man, part thought partner Perks & Benefits

- Platinum-level health insurance (fully covered) - 4% 401(k) match because long-term thinking matters - Hybrid-friendly in SF Bay Area or fully remote for the right candidate - Competitive early equity with outsized product ownership - Fast-paced, mission-driven team that values thoughtful execution and experimentation - Work on something weird, personal, powerful and potentially world-changing

If you're excited about creating the emotional core of human-AI interaction, and want to work at the frontier of LLMs, agents, and real-time interfaces wed love to hear from you.