Software Development Engineer at ByteDance / TikTok - Global Payments

Re-architected a production vendor billing system using low-latency, microservices-based architecture to support regional US usage breakdowns with cross-region data compliance and governance. Redesigned the data model from global counters to a Redis hash-based structure to eliminate hot key contention and improve write scalability under high-throughput event traffic. Introduced a decoupled event-driven pipeline using Kafka and FaaS with asynchronous batch processing to separate near-real-time usage ingestion from billing computation, enabling scalable, reliable, eventually consistent billing under heavy load. Enforced strict regional data boundaries and compliance constraints, improving scalability and observability of billing dashboards while reducing billing disputes. Integrated Hive tables and DORAd-triggered pipelines for vendor event ingestion, integrated with FaaS for real-time processing, and implemented hourly FaaS/cron-based billing computation. Designed and implemented distri

Software Development Engineer at Amazon

Designed and developed comprehensive CRUD APIs using the CorAL framework in Java, incorporating DAOs, application logic, and integration tests. Deployed APIs on AWS Fargate using AWS CDK to provision infrastructure and manage deployment pipelines. Built a service to transition a legacy system from Aurora RDS to DynamoDB, improving query efficiency and reducing response latency. Maintained CI/CD pipelines managed by AWS CDK involving multiple CloudFormation templates. Worked on enterprise-grade applications using Spring Boot, designing efficient data schemas, secure and performant APIs, server-side logic, and monitoring system metrics. Executed unit, integration, and canary tests using JUnit and testing frameworks, and participated in transitioning from monolithic to microservices-based architecture. Owned a large-scale distributed application that polled event sources like DynamoDB Streams, batched records, and invoked customer Lambda functions. Implemented load testing in the deployme

Software Engineer at Virtusa

Implemented Spring MVC framework including writing controller classes to handle requests. Developed user-friendly and responsive web interfaces using HTML and CSS to improve user experience and decrease bounce rates by 15%. Improved user comprehension and software utilization through thorough documentation, leading to a 25% reduction in support requests. Created and maintained RESTful APIs using JavaScript for improved client-side interactions and overall system responsiveness. Automated database administration tasks using Azure Automation and PowerShell, reducing manual effort by 40% and enhancing operational efficiency. Participated across the software development lifecycle using Agile methods, particularly Scrum. Managed deployments for critical applications on the Azure cloud platform, resulting in a 20% increase in system scalability and responsiveness. Developed and integrated custom Java applications and microservices using Azure services to streamline data processing workflows