Allahabad, Uttar Pradesh, India
Working as a backened engineer in Microsoft Team (M365).
1. Developed a high-availability Backup Payment Method (BPM) system that orchestrated wallet-wide secondary payments, increasing successful transaction rates. 2. Implemented Excessive Authorization Retry guardrails on hard-declined transactions, preventing significant monthly revenue leakage. 3. Engineered PayStation-Sandbox, a multi-tenant sandbox environment for clients to test end-to-end payment lifecycles in isolated production-parallel environments.
1. Built the point-issuance engine for Amazon’s Japanese promotional card market (Rewards Authority). 2. Developed dynamic ad-rendering services for credit card acquisition banners as part of the marketing infrastructure.
Taught comprehensive DSA batches and contributed to the platform’s core library by designing 100+ original DSA problems and optimal solutions.
Owned the transaction management panel for millions of merchants, implementing real-time payout capabilities and automated reconciliation. I have worked on Restful APIs using Spring , Jersey, Hibernate ,MySql etc. Used Redis as caching layer. Used Kafka for async processing. Automated deployment using Shell Scripting.