Software Engineer II – Notification Manager

Mastercard’s Decision Management Program (DMP) is building an enterprise notification platform that powers customer-facing communications across email, SMS, and API channels. In this role, you will design, develop, test, deploy, and support backend services that form distributed, event-driven microservices within the Notification Manager.

As a Software Engineer II, you will work across the full lifecycle of notification capabilities, partnering with engineering, QA, PMTs, TPMs, and product teams to deliver roadmap commitments from technical design through production.

What you’ll do

• Design, develop, test, and maintain Java/Spring Boot microservices for the Notification Manager services.
• Deliver enhancements, new features, and defect fixes across the platform.
• Participate in technical design discussions and translate requirements into working software.
• Write clean, maintainable, and secure code aligned with Mastercard engineering standards.
• Create and maintain automated unit, integration, and API tests.
• Build and evolve event-driven architectures using Kafka messaging and distributed processing patterns.
• Support platform modernization efforts, including service decomposition, resiliency improvements, performance optimization, and cloud-native deployment practices.
• Reduce technical debt and improve operational efficiency across the platform.
• Participate in production support, incident response, and root cause analysis.
• Monitor system health using observability tools and metrics, and troubleshoot application, infrastructure, and data-related issues.
• Support release activities and production readiness efforts.
• Work closely with engineers, QA, PMTs, TPMs, and partner teams to deliver roadmap commitments.
• Participate in Agile ceremonies, elaboration sessions, estimation, and backlog refinement.
• Contribute to technical documentation and knowledge sharing.
• Assist and mentor junior engineers where appropriate.
• Own one or more Notification Manager services or technical domains, delivering stories and enhancements from design through deployment.
• Improve platform reliability, performance, and maintainability through ongoing engineering contributions.
• Continuously develop technical knowledge and contribute to team engineering practices.

Core qualifications

• Bachelor’s degree in Computer Science, Engineering, or equivalent experience.
• 2–5 years of software development experience.
• Experience building applications with Java and Spring Boot.
• Understanding of REST APIs and microservice architectures.
• Familiarity with messaging or event-driven systems.
• Experience with source control, code reviews, and CI/CD practices.
• Working knowledge of SQL and relational databases.
• Strong troubleshooting and problem-solving skills.
• Ability to work independently on deliverables while collaborating effectively within a team.

Technologies in the technical environment

• Java (JDK 17)
• Spring Boot
• Kafka Messaging
• REST APIs
• Oracle / SQL
• GitHub / Bitbucket
• CI/CD Pipelines
• Splunk & Dynatrace
• PCF / Tanzu
• Distributed Event-Driven Architecture

Preferred qualifications

• Experience with event-driven architectures (Kafka, MQ, or similar).
• Experience with cloud platforms, PCF/Tanzu, Kubernetes, or containerized workloads.
• Knowledge of distributed systems concepts such as resiliency, fault tolerance, and scalability.
• Experience with observability tools such as Splunk, Dynatrace, Grafana, or Prometheus.
• Familiarity with CI/CD pipelines and automated testing frameworks.
• Exposure to PCI, security, or regulatory requirements.
• Experience working in high-volume transaction processing systems.

Benefits

• Insurance including medical, prescription drug, dental, vision, disability, and life insurance.
• Flexible spending account and health savings account.
• Paid leaves including 16 weeks of new parent leave and up to 20 days of bereavement leave.
• 80 hours of Paid Sick and Safe Time.
• 25 days of vacation time and 5 personal days (pro-rated based on date of hire).
• 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.

Security responsibilities

• 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.
• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.

Location: O'Fallon, MO (onsite)

Salary range: USD 92,000 - 147,000 per year (O'Fallon, Missouri)

Experience level: 2+ years