Demo

Software Engineer, Model Behavior

ExecutivePlacements.com
San Francisco, CA Full Time
POSTED ON 12/28/2025
AVAILABLE BEFORE 1/27/2026
About The Team

About The Team The Model Behavior team shapes how our models interact with people. We view the model as the product itself, aiming to create intuitive experiences that exceed user expectations and feel like magic. The team partners closely with research and product teams across the company to improve the real?world usefulness of our models at scale. Our work directly impacts hundreds of millions of users globally and contributes to OpenAI's mission of broadly distributing safe AI.

About The Role

About The Role We are looking for an engineer with experience in evaluation systems, observability, and data pipelines. You will design and build systems to understand (1) how users engage with our models, (2) identify where our models fall short, and (3) design/develop fundamental, launch blocking, evals for model behavior. This includes:

  • Standing up robust evaluations (automated evals, human evals, product metrics, query sets).
  • Developing tooling, dashboards, and visualizations to measure and track model behavior improvements.
  • Building interfaces and pipelines for human raters, autoraters, and hybrid workflows.
  • Capturing online signals (A/B tests, usage telemetry) and reconciling them with offline metrics.
  • Prototyping fast and iterating with research, product, and safety partners under tight timelines.

This role spans evaluation design, data pipelines, and cross?functional collaboration. You should thrive in ambiguous, scrappy environments and care deeply about measurement quality and user experience. This role is based in San Francisco, CA. We use a hybrid model (3 days in office/week) and offer relocation support.

In This Role, You Will

  • Build evaluation systems to measure core dimensions at scale and identify new areas for improvement.
  • Design pipelines for collecting and validating high?quality human data.
  • Build a robust data?flywheel to quickly launch evals on user signals.
  • Develop robust evaluations to define and track improvements in model behavior.
  • Rapidly prototype and develop tooling, dashboards, and visualizations for researchers and applied teams.
  • Develop and integrate autorater models into the eval loop.
  • Prototype dashboards and interfaces that surface eval results to researchers and applied teams to support launch decisions.
  • Debug contradictions between offline and online metrics, and drive experiments to resolve them.
  • Collaborate across research, safety, infrastructure, and product teams to deliver solutions that improve model efficiency and user experience.
  • Own and support experiments that validate hypotheses around model behavior.

You Might Thrive In This Role If You

  • Have built evaluations for capability and model improvements.
  • Have experience building and maintaining observability tooling.
  • Enjoy owning 0?1 user?facing products or tools, ideally in a startup or fast?moving environment.
  • Ship quickly under competing priorities and tight deadlines.
  • Understand how evaluations work and are curious about model training and iteration.
  • Care about product polish and usability.
  • Collaborate effectively across teams and take on diverse tasks to move work forward.
  • Are a team player, willing to do a variety of tasks that move the team forward.

About OpenAI

OpenAI is an AI research and deployment company dedicated to ensuring that general?purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity.

We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. For additional information, please see OpenAIs affirmatives action and equal employment opportunity policy statement. Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable law, including the San Francisco fair chance ordinance, the Los Angeles County fair chance ordinance for employers, and the California fair chance act. We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made via this link. OpenAI Global Applicant Privacy Policy. At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.

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Salary.com Estimation for Software Engineer, Model Behavior in San Francisco, CA
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