# Research Engineer at Lotus Health AI

- Company: Lotus Health AI
- What the company does: Lotus AI gives you infinite personalized care powered by your health data, AI trained on leading medical evidence, and real doctors you can trust. Backed by Kleiner Perkins and CRV.
- Company website: https://lotus.ai/
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco
- Work setup: On-site
- Posted: 2025-11-24
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/lotushealth/89b6a814-2886-4a59-be60-61ba4d7fd1e9
- Page: https://www.1752.vc/careers/jobs/lotus-health-ai-research-engineer/

## About the role

We are hiring a Founding Research Engineer to design, prototype, and ship the core reasoning and agentic systems that power Lotus. You will turn messy health data into accurate, cited, and actionable guidance for patients and clinicians. The work blends applied research with product engineering: dataset curation, model training and evaluation, retrieval and tool use, safety and alignment, and putting breakthroughs into production.

## What they're looking for

- Strong Python and deep experience with PyTorch or JAX
- Track record shipping applied ML or LLM features to real users, not just prototypes
- Hands-on experience with RAG, prompt and tool design, evaluation harnesses, and error analysis
- Solid SQL plus comfort with vector stores and retrieval patterns
- Product sense, pragmatism, and the ability to reduce complex systems into simple, reliable components
- Willingness to work on-site in San Francisco

Tags: Engineering