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Researcher, Training - London

London, UK💼 Full-time🗓 2026-06-04 → 2026-09-26

Core

Designing, prototyping, and scaling new architectures to improve the intelligence and efficiency of large language models (LLMs).

Role type

Senior IC machine-learning researcher (LLM training & architecture)

Builds

Next-generation LLMs for OpenAI's research and product lines

Domain

Artificial Intelligence / Large Language Models / Deep Learning

Deliverable

production ML models

Required skills

LLM architecture design, model inference optimization, empirical experimentation, transformer modifications for efficiency, debugging model regressions, computational performance optimization

Preferred skills

Experience landing contributions to major LLM training runs, self-directed evaluation of deep learning architectures, knowledge of safely deploying LLMs

Technologies

Transformers, LLM training frameworks, inference infrastructure

Responsibilities

Design and prototype new model architectures, execute and analyze experiments autonomously, study and optimize model and computational performance, contribute to training and inference infrastructure

Seniority

Senior, hands-on IC

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