A distinguished DevOps and Site Reliability Engineering leader with 19+ years of experience specializing in large-scale distributed payment systems. Currently serving as Lead Software Engineer at Visa Inc. since 2014, he has architected mission-critical infrastructure for Apple Pay, Samsung Pay, Visa Direct, and Paze Integration, processing billions of transactions annually. His expertise spans cloud-native technologies, CI/CD automation, microservices architecture, and observability engineering. Suman has led strategic initiatives in payment platform modernization, infrastructure automation, and security enhancement. With proven technical leadership and deep expertise in distributed systems, he bridges academic research and real-world implementation, making significant contributions to enterprise software engineering and payment technology advancement.