Principal AI Engineer – Unreal Engine & LLM Tools

Epic Games; Cary (NC); On-site; USD 200,000 - 260,000; Full time

Benefits offered by this job

Medical, Dental, Vision

LT Disability & Life Insurance

401k with company match

Mental health program (Modern Health)

Unlimited PTO

Sabbatical after 7 years

Job summary

Epic Games seeks a Principal AI Engineer to design and ship LLM-driven agents inside Unreal Engine, including engine-side tooling and cloud backend integration. You will work across the full stack to deliver end-to-end features and shape the future of AI-powered tools in the engine.

You will mentor teammates and collaborate with engineers across engine, tooling, and backend domains, driving reliability, safety, and innovation in AI-assisted game development.

Qualifications

• BS/MS in Computer Science or related field
• Strong software engineering background with Unreal Engine experience or engine architecture
• Experience building or shipping products powered by LLMs (agents, tool-calling, RAG, prompts) or strong concept of how LLMs work

Responsibilities

• Design and build LLM-driven agents and tools inside Unreal Engine, including engine-side C++/Python tooling and editor scripting
• Architect and extend the cloud-hosted agent harness, services, and database mediating between LLMs and the engine
• Work across the full stack (engine tooling, cloud backend, web UI) to ship end-to-end features
• Evaluate and integrate emerging LLM capabilities into Epic’s engine and tooling
• Define technical direction for reliability, safety, and evaluation of LLM-driven engine automation
• Mentor engineers across game engine internals and LLM system design

Skills

C++

Python

LLM integration

Cloud-native

Web APIs

Engine tooling

Editor scripting

Full-stack thinking

Communication

Education

BS/MS in Computer Science or related field

Tools

Unreal Engine

LLM tooling

Cloud Platforms (AWS/Azure)

Databases

Job description

Epic Games seeks a Principal AI Engineer to design and ship LLM-driven agents inside Unreal Engine, including engine-side tooling and cloud backend integration. You will work across the full stack to deliver end-to-end features and shape the future of AI-powered tools in the engine.

You will mentor teammates and collaborate with engineers across engine, tooling, and backend domains, driving reliability, safety, and innovation in AI-assisted game development.