Senior Backend & LLM Orchestration Lead

5+ years building backend APIs/services in Python (FastAPI/Flask) with REST/streaming designs. Experience integrating ML/LLM or data-heavy backends. Knowledge of LangGraph/LangChain (or custom orchestration) is a plus. Strong security fundamentals: OAuth2/JWT, token handling, RBAC/ABAC, multi-tenant safety. Cloud production experience (preferably GCP): Docker, CI/CD, IaC familiarity. Postgres + Redis mastery: modeling, query tuning, caching strategies. Debugging distributed systems with logs/traces/profilers in async environments.

Design, ship, and maintain Python/FastAPI services for LLM workflows and 3D context retrieval. Optimize latency and throughput for async pipelines and GPU usage. Enforce auth-first design for APIs and websockets. Manage GCP operations including Cloud Run/Functions, Pub/Sub, Postgres, Redis, CI/CD. Establish observability with structured logging, tracing, SLOs/alerts, and dashboards. Partner with 3D/ML engineers to productize models via stable APIs.