Used Cars Backend ◦ Received appreciation during annual performance review for consistently focusing on code modularity and quality by reducing SonarQube bug count from 2000 to 400, significantly enhancing code maintainability and minimizing testing bugs.◦ Improved Elasticsearch speed at least 10% by leveraging aggregation framework; Implemented customised sorting scripts to achieve business goals seamlessly.◦ Designed and implemented a custom geo-polygon sorting solution in Elasticsearch, significantly improving search accuracy and user satisfaction.◦ Enhanced code quality and coverage by more than 30% via comprehensive unit and integration tests using Jest framework for NestJS applications.◦ Successfully migrated 3 major core APIs from ExpressJs to NestJs resulting in improved code maintainability, scalability and reuse which reduced time for new feature development by at least 30%.◦ Led and participated in 30+ code reviews and code merging process, ensuring high quality coding standards, identifying 10+ critical issues early and promoting best practices within the team.◦ Engaged in multiple projects, gaining proficiency in diverse technologies and frameworks including ExpressJS, NestJS, PHP Yii2, Java, ElasticSearch, SQL, MongoDB to deliver efficient and scalable solutions.◦ Gained proficiency in React JS and contributed in resolving critical production bugs, ensuring application stability and improving user satisfaction.◦ Revamped the location page in the sell car flow, integrating the google api to enable location selection via pincode using functional components.

Garage Mobile Application ◦ Successfully integrated third-party apis like FreshDesk, BBPS and RTO in our application to streamline bill payment processes and automate vehicle registration verification improving overall efficiency and user experience.◦ Reduced API usage cost 20%+ by implementing custom rate limiting on third-party API usage to optimize performance.◦ Developed a backend panel using NextJs to manage services, service categories and provide real time visibility into user orders, enhancing administrative efficiency and user experience.◦ Designed the system architecture of the application focusing on scalability, efficient data flow to support seamless integration service management, order tracking and third-party API interactions.

Task Management ◦ Achieved seamless migration of backend code base from JAVA to Node.js within record timeframe of 3 months and reduced server cost by 30 percent.◦ Improved code performance atleast 5% by incorporating AWS Lambda functions, MSK and SQS to ensure reliable and scalable solution for message queuing.◦ Enhanced authorization capabilities of application by implementing robust JWT (JSON Web Token) authentication mechanism.