Arthi Arumugam

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AI engineer specialising in LLM evaluation correctness, agents, prompt-injection security, and data engineering. Lumen Technologies (Oct 2025 – Nov 2026): Vertex AI agent cut BigQuery scan bytes 94%. 26 merged open-source PRs across 14 organisations, including 8 in UK AISI inspect_evals. Built whatbroke, Gnani, costctl. Python, SQL, Azure, BigQuery, MCP. $80/hr; security $100/hr+. Remote, India.