Senior LLM Engineer — conversational AI (Remote US)

**Twilio** powers customer engagement APIs — voice, SMS, email, and **AI agents** — used by millions of developers worldwide.Senior LLM Engineer (**Remote US**): build **conversational agents**, **agent assist**, and **knowledge retrieval** for contact centers with strict latency and compliance needs.About TwilioPublic cloud communications company; AI is central to Flex and Segment.Enterprise customers require HIPAA/PCI-aware architectures.Remote-first US engineering with global customers.What you will doShip streaming LLM pipelines for voice and chat channels.Build evals for containment, escalation, and hallucination rates.Integrate tool-calling with CRM and ticketing systems.Stack & environmentPython, LangChain, NLP APIs, AWS.Fully remote United States.What we look forProduction conversational AI; voice experience valued.US work authorization required.