Restful Apis, Nodejs, Typescript, Design Pattern, Vpc, Dynamodb, Api Gateway, Aws Lambda, Mocha, Tdd, Jest, Graph Database, AWS SAM, Amazon Neptune, Unit Test Framework, CI CD, Serverless Framework, SOLID Design Principles

Html5, Spring Boot, Jpa, Css3, Java, Hibernate, Typescript, Angular v12 plus, RESTful API design and integration, Microservices architecture