Software Systems Engineer - Design, implement, maintain, improve, and document scalable backend systems (Python, FastAPI) for ML/LLM features. Optimize databases (Postgres, MongoDB, Milvus) for efficient application storage and retrieval. Enhance observability and reliability for distributed workloads through structured logging, metrics, retry/backoff strategies, and tracing. Streamline containerized development workflows (Docker, Docker Compose, Kubernetes) and CI checks to improve team produc…