Successfully converted whole project from Express to NestJs with increasing scalability to 99.99%. Launched one of the revenue-generating modules of Bajaj Health, 'Pharmacy,' using the tech stack of NestJS and MySQL. Currently, over 1000+ customers ordering medicine per month through the platform. Conducting code reviews and leveraged SonarQube resulted in an 40% reduction in post-release bugs, significantly improving application stability. Implemented monitoring with Grafana, ProdMon, and email alerts for enhanced operational efficiency. Achieved zero downtime with the help of alerting and monitoring systems and consistently delivered on-time production deployments. Setup CI/CD pipelines using Azure and Docker for 3 projects. Effectively used Kafka for fast updates to customers and reducing database load and delay by 80%. Developed a proof of concept using GoLang and GraphDB to boost query performance.