Principal Research Programmer, Unreal Assistant

Epic Games; Montreal; On-site; CAD 150,000 - 210,000; Full time

Benefits offered by this job

Full benefits for employees and depend

Employer-matched retirement plan

Mental health program

Employee assistance program

Job summary

Epic Games is seeking a Principal AI Programmer to build LLM-driven capabilities inside Unreal Engine, spanning engine code, cloud services, and editor tooling. You will design and ship scalable AI systems that enable agents, tooling, and orchestration inside the editor and runtime.

You will work across engine, backend services, and web UI, partnering with engineers and mentoring others while advancing AI-centric engine automation and safety.

Qualifications

• Experience with Unreal Engine, engine architecture, and tooling/editor scripting.
• Hands-on experience delivering AI/LLM-powered features in real-time interactive software.
• Strong understanding of cloud services, web APIs, databases and service deployment.

Responsibilities

• Design and build LLM-driven agents and tools inside Unreal Engine (engine-side C++/Python).
• Extend cloud-hosted agent harness, services, and the database mediating between LLMs and the engine.
• Work across engine tooling, cloud backend, and web UI to ship end-to-end features.
• Evaluate integrating LLM capabilities (tool use, multi-agent orchestration, context management) into Epic's engine tooling.
• Define technical direction for reliability, safety, and evaluation of LLM-driven automation.
• Mentor engineers on game engine internals and LLM system design.

Skills

Unreal Engine experience

LLM/AI integration

Cloud-native services

C++

Python

Web backend

BS/MS in CS

Education

BS/MS in Computer Science or related field

Tools

Unreal Engine tooling

Editor scripting

Job description

WHAT MAKES US EPIC?

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.

PROGRAMMING - UNREAL ENGINE

What We Do

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

What You’ll Do

We're looking for a Principal Al Programmer who builds products that integrate Al into Unreal Engine. You'll design and ship the full stack of systems that let LLMs act inside the engine (from end to end, not just a single layer), bringing depth in game engine architecture, cloud services, and how LLMs actually work.

In this role, you will

• Design and build LLM-driven agents and tools that operate directly inside Unreal Engine, including engine-side C++/Python tooling and editor scripting
• Design 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 programmers, and mentor others on both game engine internals and LLM system design

What We're Looking For

• Strong programming 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
• Experience in the games industry or equivalent, developing interactive entertainment products
• 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, with a BS/MS in Computer Science or a related field

EPIC JOB + EPIC BENEFITS = EPIC LIFE

We pay 100% for benefits for both employees and dependents and offer coverage for supplemental medical, dental, vision, critical illness, telemedicine, Life and AD&D, long term disability insurance as well as weekly indemnity (short term disability) and a retirement savings plan with a competitive employer match. In addition to the EAP (employee assistance program), we also offer a robust mental well-being program through Modern Health, which provides free therapy and coaching for employees & dependents.

About Us

Epic Games is a leading interactive entertainment company. For over 30 years we've been making award-winning games and engine technology that empowers others to make visually stunning games and 3D content that bring environments to life like never before. Epic's award-winning Unreal Engine technology not only provides game developers the ability to build high-fidelity, interactive experiences for PC, console, mobile, and VR, it is also a tool being embraced by content creators across a variety of industries such as media and entertainment, automotive, and architectural design. As we continue to build our Engine technology and develop remarkable games, we strive to build teams of world-class talent.

Epic Games deeply values diverse teams and an inclusive work culture, and we are proud to be an Equal Opportunity employer. Learn more about our Equal Employment Opportunity (EEO) Policy here.