AI Engineer · Otsuka Corporation · Tokyo

I build production LLM systems: RAG pipelines, LLM fine-tuning, and agentic workflows at scale. Currently deploying AI infrastructure on the ELK stack and running LLM training across multi-node on-prem GPUs at Otsuka Corporation, Tokyo.

B.Tech in AI & Data Science (Computer Vision specialization) from IIT Jodhpur.

• RAG & Search: production RAG chatbots on Elasticsearch (vector + hybrid search), 1,000+ monthly users, 31% retrieval accuracy improvement
• LLM Fine-tuning: SFT, instruction tuning, RLHF on 10+ LLMs using LoRA/QLoRA across multi-node GPU clusters
• LLM Serving: vLLM-based inference, multi-agent orchestration (memory + planning), automated 60% of routine enterprise queries
• Agentic Systems: LangChain, LlamaIndex, AutoGen, CrewAI; multimodal LLM pipelines, tool use, evaluation harnesses

• Email: chakshu.dhannawat1@gmail.com
• LinkedIn: linkedin.com/in/chakshu-dhannawat
• Hugging Face: huggingface.co/Chakshu123
• Location: Tokyo, Japan
• Open to AI/ML collaboration and OSS contributions in LLM tooling, RAG, and ML infrastructure