Senior Researcher, Large Language Models

Overview

As a Research Scientist in Lightspeed Tech Center, you will advance LLM-powered agents that operate within live game environments. You will collaborate with designers and engineers to meet latency, cost, and player experience targets, while exploring cutting-edge LLM techniques for reasoning, planning, tool-use, and memory. This role combines high-impact research with practical integration to push next‑gen experiences across platforms. You will work in a cross-functional, innovation‑driven team shaping the future of AI in games.

Responsibilities

• Develop and optimize agents based on large language models
• Collaborate with designers and engineers to integrate AI agents into live games
• Research and adapt LLM techniques for game agent scenarios (reasoning, planning, tool-use, memory)
• Ensure latency, cost, and player experience requirements are met in production environments
• Contribute to the evaluation and iteration of AI-driven gameplay features

Key requirements

• Ph.D. in Computer Science with NLP/LLM focus preferred
• Strong foundations in machine learning and statistical models
• Proficiency in at least one programming language and good understanding of data structures/algorithms
• Publications in AI/NLP venues preferred (ICML, NeurIPS, ICLR, EMNLP, ACL)

• Collaborative mindset
• Strong communication
• Research-driven curiosity
• NLP and large language models
• Machine learning foundations
• Programming proficiency in at least one language

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