At Walmart Global Tech, I manage complex chargeback cases across Visa, Mastercard, and Amex, preparing evidence packages using transaction details and fraud trends. I maintain 98%+ accuracy while meeting SLA and compliance requirements.
At Thermo FisherScientific, I managed customer order processing and resolved complex issues using Genesys and mainframe systems. I also built a knowledge base and refined support scripts, reducing repeat queries by 40%.
At LTIMindtree, I delivered multichannel technical support and used SQL and Python to investigate system logs and root causes. I also partnered with product and engineering to reduce recurring technical complaints by 15%.

