Principal Engineer Complex Systems Architecture

My client is looking for My client is looking for a hands-on Principal Engineer who can both architect and build complex distributed systems for an advanced AI Intelligence Platform. You will own a critical workstream end-to-end architecture, implementation, testing, deployment and production operations working directly with the CEO and a highly technical engineering team. Desired Candidate Profile 7+ years of software engineering experience with production-scale distributed systems. Expert Python Pydantic, asyncio, dataclasses and typing. Strong experience with data pipelines, event-driven architecture and fault-tolerant systems . Production experience with Kubernetes, Docker, Helm and CI/CD . Strong understanding of Arrow, Parquet, schema evolution, deduplication and data lineage . Experience with observability tools such as OpenTelemetry, Prometheus and Grafana . Strong architectural judgement and the ability to mentor senior engineers. Must be comfortable coding the systems they architect . Strong Advantage: Dagster / Ray Neo4j / TigerGraph / vector databases vLLM / Ollama and on-premise LLM deployment Air-gapped or sovereign environments Intelligence, security or investigative data platforms. Not suitable for: traditional architects who don t code or engineers who lack architectural ownership.