• Meticulously architected payment processor to handle 3500 req/sec achieved using AWS SQS, batch processing, custom rate liming algorithm

• Developed parametrized scripts to load test microservices and identify bottlenecks during high traffic, thus reduced downtime by 99.99%

• Saved millions in infrastructure cost implemented dynamic service level rate limiting to process queued payment requests with high throughput

• Reduced CPU, memory utilization by 28%, by optimizing SpringBoot REST API using Spring batch to process 10M+ transaction log data per hour

• Leveraged React, Typescript to develop interactive UI, implemented cursor pagination which improved system performance and UX by 35%

• Developed frontend centralized communication, state management between components using Redux which reduced API calls by 50%

• Used SpringBoot, Node.js to create REST API in distributed, service-oriented architecture and multi-tenant env to facilitate core services at scale

• Wrote frontend unit tests, backend integration and unit tests and E2E tests to ensure reduced bugs and proper functioning of features overtime

(React, Typescript, Redux, Java, SpringBoot, Rest API, Swagger, Automation, PostgreSQL, Git, AWS, Docker, Redis, JSON, Maven, Selenium, Jira)

• Collaborated with 3+ stakeholders to collect requirements, identify KPIs and develop analysis tool for graphical data visualization

• Integrated AWS Cognito for secure sign, AWS SES for sending emails and AWS SNS for A2P push notification, thus enhancing user experience

• Developed re-usable components, responsive, mobile-first UI using React, Redux, hooks and APIs, React-bootstrap, and JSX

• Created microservices following SOLID principles using Spring Boot, Node.js for asynchronous request handling, streamlined data flow

• Formulated complex SQL queries to automate tasks and perform data modeling, optimize queries improving overall performance by 50%

• Led migration of legacy data access layer for few microservices to GraphQL, authored custom resolvers leading to increased response-time

• Assisted optimizing, migration of monolith to docker containers leveraging alpine linux, multistage builds enhancing scalability and startup time

(Java, SpringBoot, React, Linux, CDNs, OWASP, Kafka, ZooKeeper, AWS, TypeScript, Redis, Cassandra, Docker, Github, Jira, Code review, Migration)

• Migrated application to React, leading to exponential increase in performance, maintainability, and user satisfaction and retention

• Surveyed, collaborated with customer service team, to develop new features in React dashboard, which increased query solving by 25%

• Used Spring, HTTP protocols, Nginx and CDNs to develop secure and low-latency REST API endpoints, adhering to OWASP guidelines

• Developed dashboard to create JavaScript cron jobs as per use case thus enabling tech and non-tech individuals to save time and efforts