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Senior Developer Software Engineer

Expert CNO Software Engineer

Job in O'Fallon, St. Charles County, Missouri, 63368, USA
Listing for: Mastercard
Full Time position
Listed on 2026-08-01
Job specializations:
  • Software Development
    Senior Developer, Software Engineer
Salary/Wage Range or Industry Benchmark: 145000 - 185000 USD Yearly USD 145000.00 185000.00 YEAR
Job Description & How to Apply Below
Mastercard is seeking a Senior Software Engineer to build secure, scalable solutions for our Financial Services platforms within the IT department. You will design and implement complex, high-performance applications, lead technical decisions, and ensure best practices in code quality, testing, and security. Collaborating closely with product and engineering teams, you'll mentor developers and drive innovation. Join a culture that values creativity, collaboration, and continuous growth while working with cutting-edge technologies in a dynamic, inclusive environment.
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