Python, API design, Orchestration, tool calling, planning, explainability requirements, output parsing, parallel tool execution, stateful workflows, contextual compression, agent orchestration, query decomposition, context management, evaluation and testing frameworks for LLM-powered applications, search conversational AI, RAG patterns, multi-index routing, model governance, agentic architectures, cost token management, LLM capabilities and limitations, AWS cloud services, microservices architecture, prompt engineering, workflow automation, retrieval systems