Principal AI Engineer, Unreal Assistant

About the role

At the core of Epic’s success are talented, passionate people. Epic prides itself on creating a collaborative, welcoming, and creative environment. Whether it’s building award-winning games or crafting engine technology that enables others to make visually stunning interactive experiences, we’re always innovating. Being Epic means being a part of a team that continually strives to do right by our community and users. We’re constantly innovating to raise the bar of engine and game development.

Unreal-powered projects have been on the bleeding edge of real-time entertainment for over 20 years. Our team of engineering experts are always innovating to improve the tools and technology that empower content developers worldwide.

Responsibilities

• Design and build LLM-driven agents and tools that operate directly inside Unreal Engine, including engine-side C++/Python tooling and editor scripting
• Architect and extend the cloud-hosted agent harness, services, and database that mediate between LLMs and the engine
• Work across the full stack (engine tooling, cloud backend, and the web UI used to drive and monitor agents) to ship end-to-end features
• Evaluate and integrate emerging LLM capabilities (tool use, multi-agent orchestration, context management) into Epic's engine and pipeline tooling
• Define technical direction for the reliability, safety, and evaluation of LLM-driven engine automation
• Partner closely with engine, tools, and backend engineers, and mentor others on both game engine internals and LLM system design

Requirements

• Strong software engineering background with hands-on experience in a game engine (Unreal Engine strongly preferred), including engine architecture and tooling/editor scripting
• Practical experience building or shipping products powered by LLMs (agents, tool-calling, RAG, prompt/context engineering), or a strong conceptual understanding of how LLMs work
• Experience with cloud-native services and infrastructure: web APIs, databases, and service architecture and deployment
• Excellent programming skills across C++ (engine-side) and Python and/or a web backend language
• Ability to work full-stack and reason about tradeoffs across engine code, backend services, and a web front end
• Excellent written and verbal communication skills
• BS/MS in Computer Science or a related field

Benefits

• 100% of premiums paid for medical, dental, vision HRA, long term disability, life insurance & a 401k with competitive match for you and your dependents
• Robust mental well‑being program through Modern Health, providing free therapy and coaching for employees & dependents
• Throughout the year we celebrate our employees with events and company‑wide paid breaks
• Unlimited PTO and sick time
• Paid sabbatical after 7 years of employment