Aman Nipun Shah

Implemented a peer-to-peer engagement feature that allows users to endorse peers for specific skills. Endorsements are visible to both users and their reporting managers, aiding in assessing role eligibility. I also developed a recommendation engine to highlight relevant skills for endorsement, optimizing the process to reduce job completion time from 82 minutes to just four minutes. This solution efficiently processes around 700 – 800 million rows using Node.js, TypeScript, Amazon ECS, and PostgreSQL, incorporating multiple checks and enhancements.

Created a cache management system at Cimpress using Amazon SQS, Node.js, and AWS Lambda to efficiently clear product pricing caches during bulk updates. When the admin team updated prices, notifications were sent to SQS, triggering multiple Lambdas in parallel at the database's maximum absorption rate. Each Lambda independently cleared caches for various 3rd-party services and the database itself, reducing cache invalidation time by 70% and enabling dynamic pricing updates.

Integrated the Stripe API using a webhook model in Scala. I implemented a redirect to the Stripe payment page upon clicking the "Pay Now" button, configuring the system to return users to the appropriate success or failure page after payment. I also managed webhooks from Stripe to display the payment status and amount, ensuring a seamless user experience.

Developed integration with Autotask as part of the back-end team at Zomentum to export real-time changes from the portal. I created a trigger for entity updates on our portal that sends messages to Amazon SNS, notifying an Amazon SQS queue. A Lambda function was implemented to listen to this queue and update entities in Autotask via their REST APIs. I used Scala for back-end development to ensure efficient processing and integration.

Developed an application that automates the process of obtaining rail concessions for college students. The platform features dedicated modules for students, colleges, and railway authorities, streamlining communication and management. Students receive email updates on their application status, enhancing transparency and engagement. I utilized Node.js for back-end development and MySQL as the database to ensure robust data handling and performance.