* Java (Spring Boot, Spring MVC), REST APIs Building scalable backend services and APIs
* Oracle, CockroachDB, SQL Data modeling, queries, ORM, and migration
* GKP (Google Kubernetes Platform), Docker, Kubernetes Deploying and managing applications in private cloud
* Maven, Gradle Managing builds and dependencies
* Jenkins, GitLab CI, GKP DevOps Automated build, test, and deployment pipelines
* JUnit, TestNG, Mock...