Vistaar

Lead Data Engineer

Mastercard • Full time

Jan 2020 - Mar 2026 • 6 yrs 2 mos

Delivered advanced data engineering and analytical capabilities supporting a global payment network, enabling scalable and secure financial data processing. Led end-to-end solution design, including product requirement analysis and integration data flows across complex upstream and downstream systems. Designed and developed high-quality batch and real-time Spark applications with strong emphasis on maintainability, security, and compliance standards. Architected and orchestrated large-scale deployments, job scheduling, and data lake frameworks, including a rule-based outbound feed generation engine supporting multiple sources, transformations, and targets. Worked within cross-functional agile teams, owning data lake modeling (MongoDB), development standards, and delivery quality for enterprise prepaid management platforms.