Which Java technology is in demand?

Glassdoor’s Best Jobs in America 2021 Survey, ranks Java developer as the No. 1 job in the US, with a job satisfaction rating of 4.2 out of 5 .

Hadoop/Big Data . Mobile technologies (Android or OS) Advanced JavaScript framework (e.g., Angular, React, VueJS) Spring Boot/microservices .

JavaScript and Java continue to top the list of most in-demand programming languages. Java and JavaScript are predicted to be the most in-demand IT skills in 2021 .