Mastercard is seeking a Senior Software Engineer to work on the Open Banking platform, focusing on API development, security, and scalable bank connectivity across Europe. You will join a multinational team with colleagues in Denmark and Poland, using C# with .NET and Azure in a modern CI/CD environment. Strong background in API security, infrastructure as code (Terraform), and Azure services is expected, along with a passion for solving cutting-edge banking technology challenges. #J-18808-Ljbffr