Hi, I'm Abhishek, a Staff Software Engineer at Visa with 10+ years building backend systems in Java across payments, e-commerce, logistics and loyalty platforms. I build high-availability payment authentication systems at Visa, a platform running at 99.999% availability, and lead a team of 4 engineers. Before that, I scaled systems to 10x load at Porter and built Kafka-based microservices at Jio Platforms (Ajio). I can help you with: System design (HLD and LLD) for backend and fintech roles Mock interviews for SDE-2, SDE-3, Senior and Staff positions Resume and LinkedIn reviews that get recruiter calls Moving into product companies, fintech or payments Career growth from Senior to Staff engineer Book a session and let's work through your specific goal, with practical, honest feedback from someone who has been on both sides of the interview table.