Senior Applied AI Engineer

Company Overview:

Role:

Impact You'll Drive:

• Put a concierge doctor in every member's pocket: an agent that reasons over a lifetime of labs, imaging, and wearable signals and tells them what to do next.
• Turn our longitudinal health dataset into decisions, not dashboards, so members act on their health rather than just view it.
• Make health AI that people trust with their lives: every recommendation earns its way past evaluation gates and clinician review before it reaches a member.
• Catch what a once-a-year physical misses, surfacing the early signal across 160+ biomarkers before it becomes a diagnosis.

Key Responsibilities:

• Architect and build stateful, graph-based agent workflows with tool use, planning, and memory.
• Integrate LLMs and multimodal models via structured I/O (JSON Schema, Pydantic validators) and function/tool calling.
• Build high-reliability APIs and streaming services for real-time inference, speech, and vision.
• Own production readiness: tracing, logging, metrics, rate limiting, circuit breakers, and SLOs
• Stand up eval pipelines: offline golden sets, LLM-as-judge with human rubrics, online A/B, and regression tests in CI.
• Implement retrieval and memory: hybrid search, vector and graph retrieval, semantic caches, and long-horizon context.
• Optimize cost/latency: model routing, prompt and tool selection, quantization, and KV cache/prefill strategies.
• Partner cross-functionally to translate research into robust production systems and iterate quickly behind evaluation gates.
• Mentor engineers through design docs and architecture decisions.

Qualifications/Skills:

• 1+ years building agentic AI systems; 6+ years as a full-stack or ML engineer, building production backends or ML systems in Python, Go, or similar.
• Fluency with agentic orchestration (e.g., LangGraph, PydanticAI, DSPy, LlamaIndex) and tool/function calling.
• Experience integrating frontier LLMs and multimodal models via managed APIs or self-hosted serving.
• Strong with API design and backend frameworks (FastAPI, Flask) and event-driven architectures.
• Data systems expertise with PostgreSQL, including token streaming and throughput tuning.
• Retrieval and memory: vector databases (pgvector, Pinecone, Weaviate, Milvus), hybrid search, and graph/knowledge storage.
• Production evals: LLM-as-judge, human-in-the-loop, rubric design, and CI-integrated regression tests.
• Observability and SRE: OpenTelemetry traces, metrics, structured logs, SLOs, dashboards, and on-call triage.
• Cloud-native delivery: Kubernetes, Terraform, Docker, GPU scheduling/autoscaling on AWS or GCP.
• CI/CD proficiency with GitHub Actions and test automation for prompts, tools, and agents.
• Clear, concise communication and high ownership in fast-paced environments.

Nice to Haves:

• Real-time multimodal systems: streaming ASR, low-latency TTS, WebRTC, and vision pipelines.
• RAG expertise beyond basics: Graph RAG, multi-hop retrieval, sub-agents, query planning, and freshness policies.
• Safety and governance: policy-as-code, red-teaming, PII handling, audit logs, and role-based tool authorization.
• Regulated data experience (HIPAA, SOC 2, GDPR) and data residency controls.
• Personalization at inference time, long-term memory agents, session state, and episodic memory stores.
• Experience with consumer-scale AI apps, high-traffic systems, or on-device/edge acceleration (WebGPU).

To be a strong fit, you also need:

• Ruthless Prioritization:
  • We don’t let perfect get in the way of progress.
  • We move quickly to drive value, not perfection.
  • We prioritize what drives impact.
  • We never compromise on standards of excellence.
• Member-First, Always:
  • We design and deliver like we’re caring for someone we love.
  • We create calendar, actionable, human experience.
  • We prioritize responsiveness, peace of mind, and outcomes.
  • We empower members with truth, clarity, and care.
• One Team, Moving Fast:
  • We are aligned in purpose, prioritization, and speed.
  • We gather diverse perspectives to make informed decisions.
  • We clear paths for each other and move fast together.
  • We communicate clearly and respectfully, rallying around shared goals.
• Radical Ownership, Relentless Execution:
  • We don’t just ship– we own outcomes and drive results.
  • We act with urgency and precision
  • We anticipate, initiate, and follow through.
  • We meet challenges with grit and pragmatism.
  • We embrace new tech to deliver better outcomes.
• Mission Over Ego:
  • We are ruthlessly aligned to our mission - and leave ego at the door.
  • We disagree and commit.
  • We don't tolerate politics or withholding information.
  • We operate with honesty, transparency, and respect.
• Sustained Integrity in Every Detail:
  • We earn trust by obsessing over accuracy, quality, and clarity in everything we do.
  • We prioritize clinical precision - data must be right.
  • We sweat the details because outcomes depend on them.

Why You'll Love Working With Us: