Cognizant is seeking a Senior / Lead GenAI Engineer to design, build and scale production-grade Generative AI solutions for a leading banking sector client. You will own from architecture through deployment, mentoring engineers and collaborating with risk and compliance stakeholders to ensure regulatory standards are met. The role emphasizes hands-on Python, LangChain/LlamaIndex, LLMs, and cloud deployment across AWS/Azure/GCP with a strong focus on security and observability.