Software Engineer II
Mastercard•O'fallon, MO
•$92,000 - $147,000•Onsite
About The Position
Mastercard's Services Technology organization is seeking a Software Engineer II to contribute to the design, development, testing, deployment, and operational excellence of software solutions that support AI & Decision Product Enablement (DPE) platforms. These platforms power intelligent decisioning, real-time analytics, and fraud prevention capabilities at global scale. This role is responsible for developing and maintaining automated test solutions, validating complex applications and system integrations, contributing to software quality throughout the development lifecycle, and collaborating with Product, Engineering, and Business stakeholders to deliver secure, scalable, and reliable software solutions. The ideal candidate combines strong software engineering fundamentals, automation expertise, problem-solving skills, and a passion for building quality into software from design through production.
Requirements
- 3+ years of hands-on Java development experience building, testing, deploying, and supporting enterprise applications.
- Experience developing and maintaining automated test frameworks and test suites, including hands-on experience with Selenium.
- Understanding of software engineering fundamentals, object-oriented design, common design patterns, and the software development lifecycle (SDLC).
- Experience with CI/CD pipelines, source control, automation, and modern software delivery practices.
- Experience creating and executing unit, integration, regression, and end-to-end tests to ensure software quality and reliability.
- Familiarity with gRPC or similar API technologies and service-to-service integrations.
- Strong troubleshooting, debugging, and root-cause analysis skills, with experience diagnosing issues across distributed systems.
- Knowledge of secure coding practices, code reviews, and software quality standards.
- Experience working in Agile environments utilizing Scrum, Kanban, or similar methodologies.
- Strong collaboration and communication skills with technical and non-technical stakeholders.
- Demonstrated curiosity, adaptability, and a commitment to continuous learning and knowledge sharing.
Nice To Haves
- Software engineer first, with a passion for quality and automation.
- Brings a strong foundation in Java development and modern engineering practices.
- Understands how quality engineering integrates into the software delivery lifecycle and CI/CD pipeline.
- Collaborates effectively across teams, embraces feedback, and contributes to a positive engineering culture.
- Comfortable navigating ambiguity, solving complex problems, and driving solutions through delivery.
Responsibilities
- Design, develop, test, deploy, and support automated software solutions that validate applications, services, APIs, and system integrations throughout the software development lifecycle.
- Translate business, functional, and technical requirements into scalable, maintainable, and automated validation solutions.
- Contribute to software design and architecture discussions, applying appropriate testing approaches, automation frameworks, engineering standards, and design patterns.
- Develop and maintain automated test frameworks, utilities, and reusable components that improve software quality, reliability, and delivery efficiency.
- Write secure, high-quality code while adhering to established coding standards, secure development practices, and team processes.
- Participate in code reviews to improve code quality, maintainability, security, automation coverage, and overall engineering excellence.
- Develop and maintain unit, functional, integration, performance, regression, and end-to-end automated tests to ensure quality and reliability.
- Troubleshoot, debug, and analyze defects, test failures, and application issues to identify root causes and improve system stability.
- Partner closely with software engineers to embed quality throughout the development lifecycle, ensuring appropriate test coverage, monitoring, performance validation, and operational readiness.
- Analyze and optimize automation frameworks, test execution processes, and validation capabilities to improve scalability, reliability, and efficiency.
- Design, generate, and manage test data, environments, and test execution activities required to support delivery objectives.
- Build automated quality solutions that integrate with CI/CD pipelines and deployment processes to support continuous testing and release confidence.
- Participate in Agile planning, story refinement, requirements elaboration, estimation, prioritization, and delivery activities.
- Collect, analyze, and communicate quality metrics, test results, risks, and recommendations to technical and non-technical stakeholders.
- Create and maintain technical documentation for automation frameworks, testing approaches, quality strategies, and delivered solutions.
- Collaborate with peers to solve technical challenges, share knowledge, improve engineering practices, and support Software Engineering Guild initiatives.
- Continuously learn and adopt new technologies, testing approaches, tools, and development practices that improve software quality and engineering outcomes.
Benefits
- insurance (including medical, prescription drug, dental, vision, disability, life insurance)
- flexible spending account and health savings account
- 16 weeks of new parent leave
- up to 20 days of bereavement leave
- 80 hours of Paid Sick and Safe Time
- 25 days of vacation time
- 5 personal days
- 10 annual paid U.S. observed holidays
- 401k with a best-in-class company match
- deferred compensation for eligible roles
- fitness reimbursement or on-site fitness facilities
- eligibility for tuition reimbursement
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
No Education Listed
