Senior Engineer, Applied AI

The Role

Ro is building a team focused on shipping LLM-powered products across the patient experience, clinical operations, and internal tooling.

We're hiring a Senior Engineer, Applied AI to join a new team we’re building from the ground up alongside a Senior AI Lead and an Engineering Manager. You'll own AI features from prototype through production and spend as much time improving workflows with clinical operators as writing code. Most of your work will involve building orchestration layers, prompts, evaluations, retrieval systems, and tooling that make LLMs reliable enough for real-world healthcare operations.

What You'll Do

• Design, build, and ship production LLM powered features end-to-end.
• Build the AI application layer, including prompt orchestration, tool calling, retrieval (RAG), embeddings, agent workflows, and structured outputs.
• Develop evaluation infrastructure, including regression suites, LLM-as-a-judge evaluations, synthetic datasets, human review workflows, and quality metrics that catch regressions before users do.
• Design observability systems that measure accuracy, latency, cost, hallucination rates, and model behavior in production.
• Build safety and reliability guardrails that ensure AI systems meet quality, compliance, and operational requirements.
• Evaluate and integrate third-party tools, including orchestration frameworks, evaluation platforms, vector databases, and model providers; and make pragmatic build-versus-buy decisions.
• Raise engineering standards across the team through technical leadership, code reviews, mentorship, and thoughtful system design.
• Sit with EHR operators, Patient Advocates, and clinical teams to understand the workflows you're automating.
• Prototype quickly, ship early, measure outcomes, and iterate based on real-world usage.

What You’ll Bring to the Team

• 5+ years building production software, with at least 1-2 years building and deploying LLM-powered applications in production (or equivalent depth through substantial side projects or open-source work).
• Strong Python engineer with experience building backend services and integrating modern AI APIs and frameworks.
• Comfortable using AI-assisted development tools throughout the software development lifecycle.
• You've shipped AI features that served real users, and you can clearly articulate how you measured quality, reliability, latency, cost, and business impact.
• You have strong product instincts and thrive in ambiguous environments, translating operational problems into technical solutions without relying on detailed specifications.
• Bonus: Experience with orchestration frameworks (LangChain, LangGraph, AgentCore), RAG architectures, vector databases, prompt/version management, and evaluation or observability platforms (e.g., LangSmith, Braintrust, Arize Phoenix).