Senior Software Engineer (Java · Pune

Mastercard is seeking a Senior Software Engineer to join the Operations & Technology Fraud Products team, developing scalable backend capabilities for its patented Decision Management Platform.

Key Responsibilities

• Design and build mission-critical backend services using core Java and Spring Boot frameworks.
• Contribute to high-throughput, low-latency transaction processing systems handling billions of monthly events.
• Architect message-oriented, multi-tiered solutions with high availability and fault tolerance.
• Develop and consume secure, RESTful APIs and integrate distributed event-streaming platforms like Kafka.
• Optimize database queries, data models, and persistence layers for maximum processing throughput.
• Collaborate across cross-functional engineering teams to accelerate fraud prevention product rollouts.
• Conduct automated unit, integration, and performance testing to ensure zero-defect software delivery.
• Lead code reviews, enforce coding standards, and implement defensive security practices.
• Participate in end-to-end SDLC activities, including technical design, estimation, and deployment.
• Investigate production alerts, troubleshoot distributed system bottlenecks, and implement proactive fixes.