USD per year
Company Overview
Function was founded with a singular focus: empower you to live 100 healthy years. We’re doing that by using the best available technology to make sure people don't suffer or die a preventable death. Function has been recognized as one of Fast Company’s Most Innovative Companies of 2024, and is venture-backed by Andreessen Horowitz (a16z). Hundreds of thousands of members have joined Function to take control of their health. We are growing our team and seeking out world-class talent that deeply believes in our mission to positively impact global health, has a relentless bias toward action and a growth mindset. Function fosters a collaborative and dynamic environment, where every day we are building the future.
Role Overview
You will design, ship, and scale production-grade, stateful multi-agent systems end to end—spanning orchestration graphs, model serving, real-time inference, and observability. You’ll partner with product, infra, and research to integrate LLMs and multimodal models (voice, vision, structured data) into consumer and internal workflows with strong safety, reliability, and cost controls. This is a hands-on role for a high-ownership engineer with deep systems expertise and a track record of delivering AI agents at scale.
Impact You'll Drive
- Ship agentic features that move core product KPIs with measurable quality and latency targets.
- Establish evaluation gates and on-call reliability for AI systems that handle real users and revenue.
- Reduce cost-to-serve via model routing, KV cache reuse, and retrieval quality improvements.
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,...
Function Health is a healthcare technology company focused on empowering individuals to live 100 healthy years by providing deep awareness of their health through routine whole-body lab testing, advanced imaging, and access to top doctors. The company aims to remove complexity in healthcare, place exponential health technology in users' hands, and prioritize privacy. It is mission-driven to democratize proactive health management and enable people to avoid disease and feel their best.
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