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Software Engineer I
Mastercard
O'Fallon, MissouriPosted Jul 20, 2026 · 12h ago$72k – $115k
Full-time$72k – $115kEntry LevelOn-siteFintech
About this role
Mastercard is seeking an early-career Software Engineer I to build microservices for their transaction processing platforms. This role involves developing, testing, and deploying business-critical applications using Java and modern software engineering practices.
What we are looking for
6- Develop software solutions by translating product requirements into technical implementations
- Contribute to software design discussions and propose scalable solutions
- Write modular, readable, and performant code following engineering best practices
- Develop and maintain unit tests and automated test coverage
- Participate in peer code reviews and incorporate feedback
- Support cloud-ready microservices and distributed applications
Skills mentioned
2JavaCI/CD
