Java
Most proficient language among others. Have used since early college years until now (2013-).
Used Spring/Spring Boot framework at work since 2016 til present. Additionally worked on
Struts/Seasar2 framework.
JavaScript
Started using it since 2016. Several frameworks used were vue.js and react.js.
Used vue.js at work and some personal project. Similarly used node.js for backend development
while using react.js for front-end closely.
HTML/CSS
The foundation of front-end. Used on all of my personal projects and at work for UI.
Template Engine
Used the following template engines: Thymeleaf and Mayaa.
For Thymeleaf: used with Spring Boot projects.
For Mayaa: used with Struts/Seasar2.
SQL
Utilize RDBMS with following database systems: MySql, and Oracle SQL.
Manipulating data; CRUD.
Bash
Used to develop or create batch as tools such as calling several API or modifying DB data.
Ruby on Rails
Used once for internship hence not used as much. Created a microblog as sample application.
C
Used it mainly in college courses to write low level assembly lines, pipelines, and networking.
Haven't programmed in C since college but do have some experience in it.