Utsav S.
AI & Research @MSD|Gen AI & ML Scientist|ex- Eli Lilly and Company ¦ ex-Atos
- Role
- Sr Machine Learning Engineer at MSD
- Location
- Kolkata, WB, IN
- LinkedIn followers
- 500 followers
About Utsav S.
I’m a Senior Machine Learning & Data Engineer with 6+ years of experience architecting scalable, cloud-native AI systems with a focus on Generative AI, NLP, and Search. My expertise lies in building intelligent applications using cutting-edge LLMs (GPT, BERT, LLaMA, T5, Mistral), Retrieval-Augmented Generation (RAG), Agentic AI (LangChain, LangGraph), and fine-tuning techniques such as LoRA, Adapters, and Prompt Tuning.I have filed a patent for a video transcription intelligence system, and have received multiple innovation awards for building AI-powered search platforms and automation tools at scale. My work also includes Ontology RAG, where I integrate ontologies with LLM-based RAG pipelines to enable contextualized enterprise search and reasoning.Skilled in deploying robust ML services on AWS (Lambda, Glue, SageMaker, DynamoDB, OpenSearch), I also bring production experience with Docker and Kubernetes for containerized and scalable ML deployments.Earlier, I built NLP automation pipelines, semantic search systems, and NLG solutions for structured content generation and legal document summarization.Specialties:LLMs: GPT, BERT, LLaMA, T5, Mistral | Generative AI | Prompt EngineeringRetrieval-Augmented Generation (RAG), Ontology RAG, Agentic AI (LangChain, LangGraph)Patented Innovation in AI-driven video transcription (Patent App No: 20•••••17)Semantic Search | Elasticsearch | Apache Solr | Ontology-based ReasoningPython | Django | Flask | Celery | REST APIs (Sync & Async)| SwaggerCloud & DevOps: AWS (Lambda, Glue, SageMaker, API Gateway, SQS, DynamoDB, S3)Docker | Kubernetes | GitHub Actions | Scalable & Serverless ML Pipelines
Experience
Sr Machine Learning Engineer
Aug 2025 — Present · Hyderabad, IN
AI Product & Research Team @APEX
Education
Centre for Development of Advanced Computing (C-DAC)
Post Graduation Diploma in Advance Computing, Computer Programming, Specific Applications
2016 — 2017
West Bengal University of Technology, Kolkata
Bachelor of Technology - BTech, Electrical, Electronics and Communications Engineering
2012 — 2016
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