Gaurang Gehlot

Project: Centric – IAPP.

• Designed and built a scalable backend using NestJS, supporting over 10,000 active users with high availability.
• Integrated Stripe subscriptions and webhooks, automating billing, renewals, and payment state reconciliation.
• Implemented JWT-based authentication and role-based access control, securing sensitive insurance and policy data.
• Optimized database performance using Prisma ORM, PostgreSQL indexing, and Redis caching, reducing API latency by approximately 20%.
• Automated background workflows (policy checks, renewals, reports) using NestJS cron jobs improve operational reliability.
• Integrated GraphQL and internal APIs to support complex data queries, with reduced over-fetching.
• Built a real-time notification system using Novu and AWS, delivering alerts via email, SMS, and in-app channels.
• Collaborated with DevOps to integrate CI/CD pipelines, S3 storage, and AWS services, enabling smooth deployments.
• Contributed to the frontend using React and PrimeReact, delivering responsive dashboards, and reusable form components.

Project: Katapult (Chrome extension and mobile app)

• Built a production Chrome extension enabling EMI-based checkout using virtual or disposable credit cards on e-commerce sites.
• Implemented advanced DOM parsing and manipulation logic to extract cart and user data across 30+ live merchants.
• Scaled parsing support to 50+ major retailers, handling inconsistent checkout flows, and dynamically rendered carts.
• Implemented cart evaluation logic where 75% or more leasable items triggered virtual card generation, improving approval success.
• Integrated AI-driven decision-making to predict item leasability, increasing transaction conversion rates.
• Engineered low-latency checkout flows, ensuring minimal impact on page load, and user interaction during DOM injections.
• Developed the React Native mobile app, enabling users to view orders, credit limits, and generate virtual cards on demand.
• Solved complex WebView DOM extraction challenges on mobile, maintaining feature parity with desktop checkout flows.
• Supported successful product expansion from web to mobile, contributing to increased user adoption, and transaction volume.