Senior Staff Engineer (Generative AI, Langchain + Langraph, Machine Learning) (Bengaluru)

Company DescriptionWe're Nagarro.We are a Digital Product Engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work at a scale — across all devices and digital mediums, and our people exist everywhere in the world (18000+ experts across 36 countries, to be exact). Our work culture is agile and non-hierarchical. We are looking for great new colleagues. That is where you come in!Job DescriptionRequirements- 7.5 to 12 years of overall experience in Data Science, Machine Learning, and Artificial Intelligence.- Strong hands-on experience with Generative AI fundamentals, Large Language Models (LLMs), and Agentic AI systems.- Proven expertise in developing GenAI applications using LangChain, LangGraph, and associated ecosystem tools.- Experience designing and implementing Retrieval Augmented Generation (RAG) solutions, including retrieval, reranking, chunking, memory management, and context optimization.- Strong understanding of prompt engineering techniques, including instruction tuning, ReAct frameworks, reasoning strategies, planning loops, and self-reflection mechanisms.- Hands-on experience with LLM evaluation frameworks, model assessment, and GenAI quality measurement methodologies.- Experience using LangSmith for tracing, monitoring, debugging, evaluation, regression testing, and performance optimization of GenAI applications.- Strong knowledge of Vector Databases and Embeddings, including FAISS, Azure AI Search, OpenSearch, PGVector, or similar technologies.- Experience building intelligent agents, tool-calling agents, planner-executor frameworks, multi-agent systems, and hierarchical agent architectures.- Good understanding of memory architectures, including episodic memory, semantic memory, and long-term vector-based memory systems.- Experience integrating AI agents with APIs, enterprise applications, knowledge repositories, and external tools.- Strong foundation in classical Machine Learning concepts, including feature engineering, model development, hyperparameter tuning, and model evaluation.- Experience working with structured and unstructured datasets for predictive and analytical use cases.- Understanding of MLOps concepts, including model monitoring, data drift detection, concept drift analysis, and model quality management.- Hands-on experience with cloud platforms such as AWS, Azure, or Databricks.- Proficiency with version control systems and collaborative development tools such as Git and GitHub.- Strong problem-solving, analytical, communication, and stakeholder management skills.- Candidate should have an official notice period of 30 days or less and must be able to join within one month.Responsibilities- Design, develop, and deploy enterprise-grade Generative AI and Agentic AI solutions using modern LLM frameworks and tools.- Build scalable GenAI applications leveraging LangChain, LangGraph, and related ecosystem technologies.- Design and implement advanced RAG architectures to improve response quality, grounding, and knowledge retrieval accuracy.- Develop and optimize prompt engineering strategies to enhance reasoning, planning, tool usage, and response generation capabilities.- Build intelligent agents capable of tool calling, workflow orchestration, task planning, and autonomous decision-making.- Develop multi-agent systems and agent collaboration frameworks for complex business workflows.- Implement memory-driven agent architectures supporting contextual awareness and long-term knowledge retention.- Create evaluation frameworks to measure performance, reliability, robustness, and business effectiveness of AI solutions.- Establish monitoring, tracing, testing, and observability frameworks using LangSmith and related tools.- Build and integrate Model Context Protocol (MCP) based services and external tool integrations.- Enable AI systems to interact with APIs, applications, code execution environments, and enterprise knowledge sources.- Apply Machine Learning techniques to solve business problems involving structured and unstructured data.- Perform model development, feature engineering, model optimization, validation, and performance analysis.- Collaborate closely with engineering, architecture, and cross-functional teams to productionize AI and ML solutions.- Ensure scalability, security, maintainability, and reliability of AI-powered applications.- Support MLOps initiatives, including model monitoring, drift detection, performance tracking, and continuous improvement.- Maintain comprehensive technical documentation, coding standards, and quality assurance practices throughout the development lifecycle.- Stay current with emerging trends, frameworks, tools, and best practices in Generative AI, Agentic AI, Machine Learning, and AI Engineering.QualificationsBachelor’s or master’s degree in computer science, Information Technology, or a related field.