OpenAI

Research Engineer, Codex

OpenAI
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1 year ago
San Francisco, CA, USAMid Level
H1B sponsor

Base Salary

$380k - $445k/yr

Responsibilities

  • Design and run experiments to improve code generation, reasoning, and agentic behavior in Codex models.
  • Develop research insights into model training, alignment, and evaluation.
  • Identify and resolve inefficiencies across agent behavior, LLM inference, and container orchestration.
  • Build tooling to measure, profile, and optimize system performance at scale.
  • Prototype capabilities, debug complex issues, and ship improvements to production.

Requirements

  • Strong software engineering skills and the ability to quickly turn ideas into working prototypes.
  • Interest in large language models, software reasoning, and code generation.
  • Ability to investigate open-ended research problems with creativity and rigor.
  • Experience operating across ML systems and cloud infrastructure.
  • Ability to balance system speed, cost, performance, and user experience.

Benefits

  • Hybrid work model requiring 3 days in the San Francisco office per week.
  • Relocation assistance is offered to new employees.

Categories

AI ResearchML Engineering
OpenAI

About OpenAI

10,000+ employees

OpenAI builds and deploys large-scale AI models and tools—including ChatGPT, GPT-4–class models, DALL·E, and Whisper—sold via APIs and enterprise subscriptions to developers and businesses. It monetizes through usage-based API pricing and ChatGPT Plus/Team/Enterprise, and also reaches customers via Microsoft’s Azure OpenAI Service. Founded in 2015 and headquartered in San Francisco, it operates as a private partnership.

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