Capital One Senior Software Engineer interview questions

Design a credit card system

The first round involved script writing, with a given dataset and tasked with writing a script to filter the data according to specific requirements. The second round focused on DevOps related questions (because it's a devops position), discussing the pros and cons and containerization. The behavioral round included questions like "Tell me about a time when..." things like "What challenges did you face and how did you handle them?" The case study involved architecture and design, asked to provide suggestions for optimization for an existing system. And there were some calculations regarding the cost of migrating the system, which was straightforward.