Umang Rustagi

About Umang Rustagi

Technical proficiency in Python, HTML, AngularJS and Javascript.

Experience

1. Software Engineer

   Amazon

   Oct 2022 — Present · Bengaluru, IN

   Designed and implemented a strategic framework for migrating a payment partner\'s system to a cloud environment, establishing backup protocols and a staggered rollout approach. Defined principles for minimal downtime, reliability, and backward compatibility. Executed a two-point rollout with independent controls, testing all API routes in QA and production prior to deployment, and developed rollback plans for stability.Conducted comprehensive security and monitoring audits of internal services to identify vulnerabilities and enhance operational integrity. This resulted in Increased reliability and recovery of our internal services.Debugged and fixed a Strong Customer Authentication (SCA) bypass issue caused by miscommunication between services, collaborating with three teams across time zones. This intervention prevented the cancellation of over 4 million EUR in annual orders due to compliance failures.Effectively scaled our services (to 3x of the usual capacity) to handle increased demand during the Amazon Prime Day sale, ensuring optimal performance and improved customer experience while preventing over-scaling to manage hardware costs.Integrated a retry flag into API metrics and headers to track partner first response availability, ensuring compliance with service availability standards of up to 99.9%.