Senior Staff ML Engineer

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Senior Staff ML Engineer in USA new

ServiceNow
Full time
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USA
10/30/2026
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Mountain View, CA

Responsibilities

Design, build, and ship safeguards in the agent harness for prompt injection, jailbreaks, toxicity, sensitive topics, and sensitive data exposure.
Build evaluations using customer reports, adversarial testing, and production traffic to measure true and false positives.
Partner with Security to turn adversarial findings into evaluation cases, mitigations, and fixes.
Select, integrate, and fine-tune detection models across commercial and government environments.
Balance safeguard quality, latency, and cost for controls running in the request path.
Build configurable safeguard policies for customer handling of sensitive topics.
Monitor safeguard behavior in production and resolve regressions.

Requirements

Typically 8 or more years of experience building production software, including 3 or more years of applied ML training, evaluating, and deploying models in production systems.
Hands-on experience developing LLM safeguards such as guardrail models, content classifiers, prompt-injection or jailbreak detection, or safety evaluations.
Strong model evaluation fundamentals for agent trajectories and text classification, with attention to training and evaluation data quality.
Working knowledge of safeguard bypasses, including indirect prompt injection through tools and documents and multi-turn jailbreaks.
Excellent Python experience.

Benefits

Regular employee position.
Required to work in the office under the assigned work persona.
Distributed work flexibility and trust-based work personas may apply depending on work nature and location.
Equal opportunity and reasonable accommodation support are provided.

ServiceNow

ServiceNow delivers an AI-driven platform that integrates any AI, data, and workflow to help companies, particularly those in the Fortune 500, enhance their operations. Our technology empowers businesses to work smarter and more efficiently, making us a trusted partner in their journey of digital...

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