Backend Software Engineer

Our client is a high‑growth AI startup in the life sciences space that’s already working with some of the world’s largest pharmaceutical organizations. This is a rare opportunity to join a tiny, elite engineering team building production‑grade AI systems that directly impact how critical drugs get to market faster.The OpportunityYou’ll be a core backend engineer owning and scaling real-world systems, not internal tools or experiments. The platform you build will be used by tens of thousands of users inside highly regulated, global enterprises.What You’ll Be Working OnDesigning and scaling backend systems in productionBuilding APIs from scratch using modern Python frameworks (FastAPI, Django, etc.)Implementing GenAI workflows (RAG, prompt engineering, evaluation frameworks)Deploying and scaling containerized services in the cloud (AWS preferred)Collaborating closely with product, medical, and customer-facing teamsWhat We’re Looking For (Non‑Negotiable)3+ years of backend engineering experience while physically working in the US (Remote work for a US company while abroad does not qualify)Strong Python backend experienceHands‑on experience building GenAI applicationsExperience with cloud infrastructure, containers, and CI/CDComfortable working in a fast‑paced, high‑ownership startup environmentOpen to hybrid, in‑office work in San Francisco (4–5 days/week)Open to immediate relocation if not already localNice to HaveExperience in regulated industries (life sciences, fintech, compliance)Infrastructure‑as‑Code (Terraform or Pulumi)Some frontend exposure (React)What Makes This Role DifferentReal AI systems in production, not research or POCsDirect ownership and visibility into customer impactEarly‑stage team with massive enterprise reachFast growth, high standards, and meaningful responsibility from day oneIf you’re excited by ownership, speed, and building AI systems that actually matter, this is one worth exploring!