Senior Backend Engineer - Ads Integrity & Trust

Applied Methods Ltd; San Francisco (CA); Hybrid; USD 240,000 - 385,000; Full time

Job summary

OpenAI is seeking an experienced Software Engineer to design and operate the backend systems that keep our ads products safe and trustworthy at scale. You will own end-to-end integrity protections across onboarding, risk, content safety, and enforcement, collaborating with ML, policy, and safety teams.

You will build low-latency, high-throughput services and data pipelines, partnering with Ads to protect ecosystem health while preserving reliability and product quality.

Responsibilities

• Design and build large-scale backend systems that detect and prevent harmful, deceptive, fraudulent, or policy-violating activity across the ads ecosystem.
• Build low-latency integrity infrastructure capable of evaluating risk signals and making decisions in or near real time.
• Develop scalable risk-signal pipelines, decision systems, rules and enforcement infrastructure across the advertiser and ads lifecycle.
• Build advertiser onboarding, business verification, account-risk, fraud-detection, and abuse-prevention capabilities that make it harder for malicious actors to enter or exploit the ecosystem.
• Develop systems that support ads-specific content safety and enable the detection and enforcement of unsafe, misleading, deceptive, or policy-violating ads.
• Build protections against spam, fraudulent interactions, manipulation, and other adversarial behaviors that threaten the health of the ads ecosystem.
• Partner with ML teams to integrate classifiers and model-based signals into production integrity systems, including both lightweight real-time protections and more sophisticated asynchronous detection.
• Build feedback loops, review systems, and integrity metrics that improve detection quality while carefully managing false positives and impact on legitimate advertisers and users.
• Create tooling and infrastructure that enable operations and policy teams to investigate abuse and make fast, consistent, and explainable decisions.
• Engineer systems that adapt as adversaries change their tactics and support effective experimentation, monitoring, and incident response.
• Partner closely with Ads Engineering to integrate integrity protections throughout the ads platform without compromising reliability, latency, or product quality.
• Help define the technical strategy and architecture for Ads Integrity as both the product and underlying threat landscape evolve.

Job description

OpenAI is seeking an experienced Software Engineer to design and operate the backend systems that keep our ads products safe and trustworthy at scale. You will own end-to-end integrity protections across onboarding, risk, content safety, and enforcement, collaborating with ML, policy, and safety teams.

You will build low-latency, high-throughput services and data pipelines, partnering with Ads to protect ecosystem health while preserving reliability and product quality.