Sergiu Nicoara

Meet Sergiu

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10 years of carrier-grade engineering at Alcatel-Lucent (10M+ users, 99.9% uptime) now applied to AI. Since early 2025, I've shipped 10+ production-architecture systems across LLMs, agentic orchestration (LangGraph, MCP, A2A), and GraphRAG pipelines with RAGAS-evaluated retrieval. Every project is built with observability, evaluation harnesses, and fault-tolerant async pipelines from day one. Recent: 0.937 faithfulness on aerospace regulatory RAG, 600ms voice end-to-end, 83% → 100% pass rate on LLM-as-Judge harness. Focused on work where reliability matters as much as model choice.