Senior Machine Learning Engineer (AI)

TL;DR

Senior Machine Learning Engineer (AI): Building production-ready AI systems for real-time 3D characters with an accent on LLMs, RAG, and multi-agent architectures. Focus on scaling backend services, optimizing model performance, and transitioning cutting-edge research into interactive consumer applications.

Location: Must be based in or able to commute to Los Angeles, CA, Santa Clara, CA, San Francisco, CA, Mountain View, CA, or Santa Barbara, CA (Hybrid)

Salary: $120,000–$350,000

Company

A well-funded, unicorn-backed AI startup with over $270M in funding, focused on building interactive AI experiences for gaming and entertainment.

What you will do

• Design and build production-ready AI systems using LLMs, RAG, and multi-agent architectures.
• Develop scalable backend services to power real-time AI experiences.
• Collaborate with product and research teams to transition AI concepts into production.
• Evaluate and optimize AI performance through benchmarking and model fine-tuning.
• Drive best practices for AI quality, safety, scalability, and cost optimization.

Requirements

• 5+ years of experience building production machine learning or AI products.
• Hands-on experience with LLMs, agentic AI systems, and RAG.
• Strong backend engineering skills with Python (Go or JavaScript considered).
• Comfortable working in a fast-paced, high-ownership startup environment.
• Bachelor's degree in Computer Science, AI, or a related field.

Nice to have

• Master's degree or PhD in a relevant field.

Culture & Benefits

• Competitive salary and equity package.
• Comprehensive benefits including healthcare and 401(k).
• Unlimited PTO and parental leave.
• Wellness allowance.
• Opportunity to work at the intersection of AI, gaming, and 3D technology.