Created numerous REST APIs exposing backend functionalities to multiple frontend systems, such as websites and mobile apps. Implement gRPC APIs for better and faster communication between internal microservices. Utilized Java frameworks such as Spring Boot and Spring JPA for creating microservices quickly. Enhanced security of the microservices by using other modules such as spring security and reduced vulnerabilities frequently identified with the Maven spot bugs plugin. Single handedly upgraded all Spring Boot microservices from 2.0.x to 2.5.x and fixed all the broken code that was produced by the upgrade. Actively piloting the Spring Boot Upgrade from 2.5 to 3.1 Operated with Postgres SQL databases and MongoDB NOSQL databases. Created and utilized cloud resources on AWS, a few such as VPC, ELB, ECR, EKS, S3 and RDS. Successfully reduced multiple vulnerabilities across Go and Java microservices, which improved the application's security score by 90% in security audits. Adapted the usage of Go Lang to build new microservices, Utilized go frameworks such as grpc gateways to convert REST API requests to gRPC requests. Built and Containerized application using docker. Deployed, managed numerous microservices in Kubernetes, and secured each service with network policies. Have commendable knowledge on GIT as a VCS system. Written several helm templates to create dynamic Kubernetes manifests for each environment. Revamped monitoring systems around API URLs developed in Golang enhance precise API failure identification by 100%. Conducted numerous troubleshooting activities with the quality team to diagnose bugs identified in applications before releasing them to production. Performed many POCs to improve the application and develop new features; one such example is adding persistence to the existing NATS messaging system. Supervised and coordinated a team of four and trained them to understand and contribute to the application.