Perumala Ranjith Kumar

I've built and shipped HireResume.in, a live AI resume optimizer, builder, and mock interview SaaS powered by the Anthropic Claude API, Supabase, and Razorpay.

At Tata Consultancy Services, supporting CIBC Renaissance Investments, I resolve production issues and deliver enterprise Java, Spring Boot, Azure, and Drupal enhancements. I reduced Drupal advisor-login times from several minutes to seconds by fixing catastrophic cache truncation and an N+1 query issue generating 176K+ queries per login.

I independently build end-to-end AI systems, including AgentCut, a multi-agent video editing engine that uses LangGraph, Whisper, FFmpeg, LLM APIs, and Next.js to create short-form clips from long videos.

I'm also building a self-correcting RAG answer engine for financial documents, using LangGraph, Qdrant, Ragas, and Langfuse to evaluate retrieval relevance, answer faithfulness, and hallucination rates.