Ness Digital Engineering is seeking a Sr Data Scientist to design solutions utilizing NLP models including chat assistants and RAG systems. Responsibilities include NLP model evaluation using human-supported and synthetic methods, deploying models with focus on latency, reliability, and scalability, and discovering new methods for prompt engineering, model fine-tuning, quantization, latency optimization, document embeddings, and chunking. The role involves collaborating closely with product teams, business stakeholders, and engineers for smooth integration of NLP models into production systems, troubleshooting complex machine learning development and data pipeline issues, and researching the latest relevant methods and technologies. A degree in Computer Science, Mathematics, Statistics, Computational Linguistics, Engineering, or a related field is required, along with good understanding of machine learning and deep learning methods and their mathematical foundations.