LLM Researcher: Architect & Optimizer (London, Hybrid)

OpenAI
📍 london, england, United-Kingdom 💼 Full-time 🕒 Posted June 20, 2026

Job Description

OpenAI is seeking a candidate for LLM development, responsible for enhancing intelligence and efficiency of language models. The role involves designing new architectures and contributing to model performance optimization.

Based in London, the position follows a hybrid work model with relocation assistance. The ideal candidate should have a deep understanding of LLM architectures and skills in debugging and optimizing model performance.

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Job Details

  • Location london, england
  • Job Type Full-time
  • Category Engineering
  • Posted Date June 20, 2026
  • Application Deadline July 30, 2026