Employer. Invincible Tech Systems, Inc. Position. Software Developer (Job Code: 1022). Duties. Responsible for providing support for the design, development and implementation of Front end, Back end, Mobile, Financial, all-encompassing Web Applications. perform tasks using technologies including Java/J2EE, Spring Boot, Junit, GIT, JIRA, Jenkins, RESTful Web Services, SQL, JDBC, Spring Framework, JSON, Angular JS, HTML5, CSS3, JavaScript, React JS...