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Tharun Kshathriya Sangaraju

Mid-level AI Engineer specializing in LLM orchestration, RAG, and multi-agent systems

University of HoustonUniversity of HoustonHouston, TX4 Years ExperienceMid LevelWorks On-Site

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About

Research Assistant at the University of Houston who built and live-deployed a production RAG system for 1000+ research documents, using hybrid retrieval (dense+BM25+RRF) with cross-encoder reranking and RAGAS-based evaluation; reported 66% MRR, 0.85+ faithfulness, and 68% lower LLM inference costs. Also built a deployed LangGraph multi-agent research system (Researcher/Critic/Writer) with tool integrations (Tavily, arXiv) and dual memory (ChromaDB + Neo4j), plus freelance automation work delivering a WhatsApp chatbot and n8n workflows for a wholesale clothing business.

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Key Strengths

  • Built and deployed production RAG system over 1000+ research documents
  • Designed high-precision hybrid retrieval pipeline (dense + BM25 + RRF + cross-encoder reranking)
  • Balanced retrieval quality vs latency via candidate pool tuning
  • Established post-deployment evaluation/monitoring using RAGAS (faithfulness, answer relevance, context precision)
  • Improved outcomes with measurable metrics (66% MRR, 0.85+ faithfulness, 68% reduction in LLM inference costs)
  • Implemented iterative production improvements based on real user query behavior (HyDE, chunk-size tuning)
  • Built and deployed LangGraph multi-agent research workflow with critic feedback loops
  • Integrated structured + vector memory (Neo4j + ChromaDB) while managing state and avoiding data duplication
  • Delivered automation for non-technical client (WhatsApp chatbot + n8n) by scoping pain points and showing early wins

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Experience

Research AssistantUniversity of Houston · Aug 2024 – Present
Data EngineerFord Motor Private Limited · Aug 2022 – Jan 2024
Data Analyst InternCognizant · Aug 2021 – Jan 2022internship

Education

University of Houstonmaster, Data Science (2025)

Skills

Agentic AIAI AgentsAPI IntegrationApache AirflowApache HadoopApache KafkaApache SparkChromaDBCI/CDCloud ComputingData EngineeringData PipelinesdbtDockerElasticsearch

Languages

English

Certifications

AWS Certified Data Engineer - AssociateMachine Learning with Python - IBMDatabases and SQL for Data Science with PythonPython for Data Science, AI & Development

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Tharun Kshathriya SangarajuMid-level AI Engineer specializing in LLM orchestration, RAG, and multi-agent systems