My most challenging project was when I worked on an AI-based natural language processing system to detect fraud in financial transactions. It required my team to build a hefty infrastructure to monitor large volumes of text data, along with a custom machine learning solution to accurately detect fraud patterns. Additionally, since the system was deployed in a live production environment, we faced tight deadlines and had to be extra vigilant to ensure the reliability and performance of our system.
Describe the most challenging project that you have ever worked on.