Senior Software Engineer, Python

4–6+ years professional Python experience Strong with FastAPI, Pydantic, async programming, and building production services Experience integrating with LLM APIs (OpenAI, Anthropic, Bedrock, etc.) Comfortable with prompt design, API orchestration, and response validation Solid understanding of monitoring, observability, and debugging distributed systems Experience using hosted model APIs to solve domain problems Familiarity with intent classification, entity extraction, and multi-turn conversation flows Ability to build evaluation harnesses and safety checks for model output Experience with serverless or cloud-native architectures (AWS preferred) Able to debug issues that involve both model output and device/control APIs History of shipping features under tight, evolving requirements Can translate guidance from sleep consultants into rules, prompts, and validation logic Able to communicate system behavior clearly to product, CX, and business teams Pragmatic about constraints and tradeoffs

Ramp up on existing FastAPI service and PydanticAI agent architecture Review sleep content library, device APIs, and common conversation patterns Make initial improvements to prompts, validation, or routing logic Drive implementation for Phase 2 of the AI Sleep Chat Build out evaluation and testing systems Work with sleep consultants to translate their knowledge Add instrumentation for monitoring, logging, and conversation analytics Improve reliability and guardrails around model-driven responses Lead Natural Language Interface project Design and implement multi-agent architecture Build routine creation wizard using LLM-powered recommendations Establish practical engineering patterns for using LLM APIs