Saurabh Vaish

I’m a Backend Engineer with 5.5 years of experience designing and scaling highly-available distributed systems and data pipelines. I focus on delivering resilient backend services through strong Java expertise, AWS, and Agile collaboration, with a FinTech background in payments and security.

At Goldman Sachs, I engineered the migration of critical PnL report generation pipelines from on-premise to Snowflake cloud using Java. I orchestrate scheduler-based report generation and optimized API response time by 90% (10 min → under 1 min) through query restructuring and async job orchestration.

I also build automation that accelerates delivery—prototyping a Python reconciliation tool using Generative AI (GitHub Copilot) and integrating GenAI tools (Devin AI) into the development lifecycle. In parallel, I onboarded deposits to new flows, enhanced report generation on AWS, and refactored core functionality into reusable libraries across projects.

Earlier, at Razorpay, I developed integrated reconciliation systems and improved backend performance by 20% by extracting logic into microservices. I strengthened security by updating encryption protocols for Amazon Pay, improved report download time from 2 min to 30 sec using Kafka and multiple threads, migrated authentication to token-based with Spring Security and JWT, and reduced Sonar issues in middle-ware microservices by 95%.