All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and. Senior Software Engineers operate with a high degree of autonomy, contribute across the full software development lifecycle, and raise the technical bar through backend development, code quality, automated testing, system design, secure engineering practices, and knowledge sharing.