ServiceNow · Mountain View, CA

Senior Staff ML Engineer, AI Safeguards - Moveworks

Mountain View, CALIFORNIA, United StatesFull-timeSenior individual contributorOperations

Listed on ServiceNow’s official careers site. Posted October 28, 2026. Check that it is still open and apply there.

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Job description

  • Design, build and ship safeguards in the agent harness for prompt injection, single and multi-turn jailbreaks, toxicity and sensitive topics, and sensitive data exposure
  • Build evals that measure safeguard efficacy on both false and true positives, using datasets from customer reports, adversarial testing and production traffic

Work closely with our Security team

  • turn their adversarial findings into eval cases and fixes, and build mitigations together that hold when detection misses
  • Select, integrate and fine-tune detection models within a stack shared by our commercial and government environments
  • Balance quality, latency and cost for controls that run in the request path
  • Build configurable safeguard policies so customers can decide how sensitive topics are handled
  • Monitor safeguard behavior in production and fix regressions

Qualifications

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

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