Autonomous Voice/SMS Agents, OpenAI, Anthropic, Gemini, LangChain/LangGraph, LLM Evaluations (Accuracy/Latency/Cost), Guardrail Strategies, Python (FastAPI/Flask), Node.js (TypeScript), Go, Ruby on Rails, Distributed Systems, Microservices, REST & WebSockets, AWS (EKS, Lambda, S3, RDS), Kubernetes, Docker, Terraform (IaC), CI/CD (GitHub Actions), Monitoring & Observability, Real-time Conversational Workflows, Twilio (Voice/SMS), Kafka, PostgreSQL, Redis Cache