Software Engineer, Codex — User Activation

OpenAISan Francisco, California, United States, San Francisco
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Posted on: 14 Jul 2026

Phewnix Understanding of the Job

The actual job requirements can be found on the career page when you apply.
As a Software Engineer, Codex — User Activation at OpenAI, you are spearheading the development of an AI software engineer that can be paired with, delegated to, or even asked to take on future tasks proactively. This role entails designing, developing, and deploying full-stack solutions to activate users and drive engagement with Codex, a cutting-edge AI model. By contributing to the Codex team, you are playing a crucial part in shaping the future of software engineering and artificial intelligence. This position offers immense growth and advancement potential, as you will be working at the intersection of research, engineering, design, and product, with the opportunity to collaborate with a talented team of experts in San Francisco, California, United States.

Your day-to-day activities will involve a range of responsibilities, including:
  • Designing and implementing onboarding flows to introduce users to Codex and its capabilities

  • Developing and refining the Codex agent harness and product to optimize user activation and engagement

  • Collaborating with cross-functional teams to iteratively train the model and improve its performance on complex software engineering tasks

  • Building and maintaining large-scale systems, leveraging your expertise in full-stack development, engineering design, and agent systems

  • Integrating artificial intelligence and machine learning algorithms to enhance the user experience and drive business outcomes

  • Participating in code reviews and contributing to the development of best practices and standards

  • Working closely with the product team to inform product decisions and ensure seamless integration of Codex into the overall product strategy. As a Software Engineer, Codex — User Activation, you will be reporting to a technical lead and working closely with a dynamic team of engineers, researchers, and designers to drive the success of Codex.



By joining OpenAI as a Software Engineer, Codex — User Activation, you are becoming part of a company that is at the forefront of artificial intelligence research and development. You will be working in a culture that values innovation, collaboration, and continuous learning, with opportunities to develop your skills and

Job Overview

Salary:
Not disclosed
JOB TYPE:
Not specified
Experience:
Not mentioned
Job Location:
San Francisco, California, United States, San Francisco
Job Level:
Not specified
Education:
Graduation