Lead Researcher, Search Integrity & Detection

OpenAI, Inc.; San Francisco (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

OpenAI is seeking a Researcher to lead Search Integrity, shaping technical directions to detect spam, scams, phishing, and other adversarial content. You will build classifiers and evaluations, integrate signals into indexing and ranking, and collaborate with Safety and Integrity teams to deploy robust detection systems.

Responsibilities include defining priorities, developing scalable ML solutions, and staying ahead of evolving adversaries with frontier-model approaches.

Qualifications

• Deep experience in web spam, search quality, adversarial content detection, or related integrity problems at scale.
• Strong applied ML and research skills, with experience developing classifiers, detection methods, and evaluations for real-world systems.
• An understanding of how adversaries manipulate content and links, coordinate across sites, and adapt to detection systems.
• A track record of independently defining ambiguous technical problems and driving solutions from experimentation through production.
• Experience working across research, engineering, and integrity teams while remaining hands-on with technical work.
• A first-principles approach to using frontier models and compute, and a strong interest in keeping detection systems effective as adversaries evolve.

Responsibilities

• Define the technical direction for Search Integrity, identifying gaps and determining which problems and interventions to prioritize.
• Develop AI and ML systems to detect spam, scams, phishing, malicious domains, prompt injections, and other adversarial or low-quality web content.
• Discover useful signals across page content, links, domains, metadata, and relationships between websites, including patterns that reveal coordinated manipulation.
• Build evaluations that measure detection quality and how integrity interventions affect the information Search surfaces.
• Translate detection signals into indexing, ranking, and filtering decisions, improving what models can retrieve and rely on.
• Serve as the technical owner for integrity within Search, partnering with researchers, engineers, and broader Safety and Integrity teams to build and deploy these systems.

Skills

Web spam detection

Adversarial content detection

Search quality

Applied ML

Job description

OpenAI is seeking a Researcher to lead Search Integrity, shaping technical directions to detect spam, scams, phishing, and other adversarial content. You will build classifiers and evaluations, integrate signals into indexing and ranking, and collaborate with Safety and Integrity teams to deploy robust detection systems.

Responsibilities include defining priorities, developing scalable ML solutions, and staying ahead of evolving adversaries with frontier-model approaches.