models, IoT streams, and metadata, using Python, Java, Go (Django, Spring, EdgeX frameworks). Build the features clients interact with daily across React, TypeScript, and our backend. Own the knowledge graph infrastructure (RDF triple stores such as GraphDB or Fuseki, SPARQL endpoints, SHACL validation) and ensure it performs … production: APIs, databases, task queues, caching, deployments. Proficient in Python or Java (Django or Spring), PostgreSQL, GraphQL. Comfortable with full-stack development with React, TypeScript, TanStack, Tailwind. You've designed and operated data-intensive systems and understand architectural concepts like schema design, migrations, query performance, indexing, caching. Experience with ...