Senior Software Engineer

Mastercard is seeking a Senior Software Engineer to join their Payment & Enablement Optimization program in O'Fallon, Missouri. This role focuses on driving customer experience strategy through innovation and problem-solving, designing and developing scalable solutions, and ensuring secure, performant, and testable systems.

• Design, develop, and maintain scalable solutions
• Apply software design principles and architectural patterns
• Contribute to system architecture discussions
• Translate business requirements into technical solutions
• Ensure secure coding practices and integrate security testing
• Develop and execute comprehensive test strategies and automation frameworks