Senior Java Backend Engineer for Scalable Payments

Mastercard Inc.; O’Fallon (MO); On-site; USD 120,000 - 180,000; Full time

Job summary

Mastercard is seeking a Senior Software Engineer to design, develop, test, deploy and maintain complex backend Java applications and services. You will apply deep technical expertise to solve nontrivial problems and collaborate with product, operations, and security teams.

You will own end-to-end delivery, drive reliability, testing, and performance improvements, mentor teammates, and contribute to agile ceremonies and architecture decisions across the DMP portfolio.

Qualifications

• Experience designing and implementing Java-based backend services.
• Knowledge of APIs, services, and backend architectures.
• Familiarity with secure coding practices and reliability engineering.

Responsibilities

• Own software delivery activities at the application or component level, including backend development, testing, deployment, release, configuration, and documentation.
• Design and develop scalable, secure, reliable Java applications and services.
• Translate business requirements into scalable software designs for backend systems.
• Develop high-quality Java software with sound data structures and coding standards.
• Create and maintain automated unit, integration, and regression tests for services.
• Incorporate test automation and regression testing throughout the lifecycle.
• Mentor peers and contribute to agile processes and architectural decisions.

Skills

Java backend development

Backend system design

Job description

Mastercard is seeking a Senior Software Engineer to design, develop, test, deploy and maintain complex backend Java applications and services. You will apply deep technical expertise to solve nontrivial problems and collaborate with product, operations, and security teams.

You will own end-to-end delivery, drive reliability, testing, and performance improvements, mentor teammates, and contribute to agile ceremonies and architecture decisions across the DMP portfolio.