Backend & Infrastructure Engineer

About the role

You'll own ClaimIt's backend and cloud infrastructure end-to-end — from the FastAPI gateway that fronts our agents, to the Pub/Sub-based async orchestration, to the MongoDB data layer, to the Cloud Run deploys and IAM. We're built on GCP with a small, opinionated stack: we want fewer moving parts, not more. You'll set the patterns that the rest of the team follows.

What you'll do

• Own the api-gateway service (FastAPI, Python) — design new endpoints, debug performance, evolve the data model
• Run the agent orchestration platform: Pub/Sub topics, Cloud Run workers, retries, observability
• Architect and operate the MongoDB layer (schemas, indexes, migrations, query patterns)
• Manage GCP infrastructure via Terraform (Cloud Run, IAM, Storage, Pub/Sub) — including disaster recovery and cost optimization
• Lead engineering hires on the backend side as we grow

What you'll bring

• 4+ years of production backend engineering, ideally in Python (FastAPI or similar async frameworks)
• Real cloud infrastructure experience on GCP or AWS (Cloud Run / Lambda, IAM, storage, pub/sub-style messaging)
• Comfort with Terraform or equivalent IaC
• Strong opinions about reliability, observability, and graceful degradation
• Comfort owning an entire service stack — you debug what breaks, regardless of layer

Nice to have

• Experience with LLM serving infrastructure (vLLM, streaming, multi-tenant inference)
• Background in regulated or high-trust domains (finance, healthcare)
• Past work as the first or second backend hire at a startup