Mastercard · Arlington, VA, USA
Build and maintain scalable full-stack experimentation and analytics applications using Java, Spring Boot, TypeScript, React, Databricks, and Spark. Develop APIs, backend services, frontend components, and data-processing capabilities; contribute to architecture, testing, deployment, performance optimization, and production support. Collaborate with Product, Data Engineering, QA, and business stakeholders to deliver reliable cloud-native solutions and continuously improve engineering practices.