Data Scientist

Brief DescriptionAbout the Role: We are looking for a Generative AI Expert with strong knowledge in Retrieval-Augmented Generation (RAG) and machine learning/deep learning (ML/DL). You will work on building intelligent systems that combine large language models (LLMs) with document retrieval to generate accurate and context-aware responses. Your role will involve developing and improving ML/DL models, fine-tuning LLMs, and integrating retrieval systems using vector databases. You’ll collaborate with cross-functional teams to build realworld AI solutions that make use of both unstructured data (like PDFs and web pages) and structured sources.  Key Responsibilities:  Design, build, and optimize RAG pipelines for document-level and multi-turn QA systems.  Fine-tune or prompt-tune foundation models (LLMs) for domain-specific tasks.  Develop and deploy ML/DL models to support NLP/NLU tasks like summarization, classification, and retrieval scoring.  Integrate vector databases, semantic search tools, and embedding models for highperformance document retrieval.  Work with unstructured and semi-structured data sources (PDFs, HTML, JSON, SQL, etc.).  Collaborate with data engineers, ML engineers, and product teams to build end-to-end generative AI solutions.  Monitor performance, latency, and relevance metrics; iterate on retrieval and generation models.  Implement prompt engineering strategies and hybrid approaches (rule-based + neural) to enhance model reliability.  Contribute to research and innovation in applied generative AI, and stay up-to-date with the latest in LLM, RAG, and MLOps ecosystems. Key Skills Required:  Strong experience with RAG architectures and hybrid retrieval systems.  Solid hands-on knowledge of LLMs (e.g., GPT, Mistral, LLaMA, Claude, DeepSeek, etc.) and embedding models (e.g., SBERT, OpenAI, HuggingFace models).  Proficiency in machine learning / deep learning using PyTorch, TensorFlow, Hugging Face Transformers, etc.  Experience with vector databases (e.g., FAISS, Weaviate, Pinecone, Qdrant).  Experience in text chunking, retrieval scoring, prompt tuning, or LoRA/PEFT methods.  Strong background in NLP, information retrieval, and knowledge graphs is a plus.  Comfortable with Python and associated data science stacks (Pandas, NumPy, Scikit-learn).  Experience working with real-world messy data (PDF parsing, OCR, HTML scraping, etc.)Preferred SkillsLLM, RAG, ML/DL