What does a Java Developer do?

Learn all about Java Developer duties, skills and much more. Get expert advice on how to become a Java Developer.

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Brenna Goyette
Certified Professional Resume Writer, Career Expert

Published 4 min read

A Java Developer is responsible for the development and maintenance of applications written in Java. They collaborate with other developers on the team to create high-quality software that meets customer expectations. In addition to writing code, they also perform unit testing and debugging.

Java Developer job duties include:

  • Actively participate in the software development cycle including the development of high-quality and stable software based on customer, business, and technical requirements.
  • Engage with the development team in active problem solving to identify technical roadblocks and recommend solutions that can improve the direction of our technology stack.
  • Help to improve software engineering practices across the development team and be an advocate of a culture of quality code development including writing/maintaining technical documentation.
  • Understand testing & integration methodologies (continuous integration, continuous delivery, unit vs. integration tests).
  • Experience with developing cloud-friendly architectures and leveraging cloud services.
  • Developing RESTful web services and working with JSON data.
  • Experience with one or more major Java web frameworks (Spring MVC, Struts 2, JSF 2, etc).
  • Experience with JavaScript libraries and frameworks such as AngularJS, ReactJS, VueJS etc.
  • Relational database experience (MySQL, Oracle, etc) and understanding of SQL queries and database design principles.

Java Developer Job Requirements

A Java Developer is responsible for the development and maintenance of applications written in Java. They are involved in the full software development life cycle, from concept and design to testing. A Java Developer should have a bachelor's degree in computer science or a related field, and experience with Java programming. They should also be familiar with relational databases, such as MySQL, Oracle, and SQL Server. In addition, a Java Developer should have experience with web technologies, such as HTML, CSS, and JavaScript.

Java Developer Skills

  • Java
  • Spring
  • Hibernate
  • Struts
  • JSP
  • Servlets
  • JDBC
  • EJB
  • JMS
  • JNDI
  • RMI

Related: Top Java Developer Skills: Definition and Examples

How to become a Java Developer

Java is a versatile and powerful programming language that enables developers to create robust, high-performance applications. To become a Java developer, you will need to have a strong understanding of object-oriented programming concepts and be able to write code that is both efficient and easy to maintain. In addition, you will need to be familiar with the Java development tools and frameworks.

The first step to becoming a Java developer is to learn the basics of the language. You can do this by taking an introductory course or reading one of the many excellent books on Java programming. Once you have a solid foundation in the language, you can start working on small projects to gain practical experience. As you become more proficient, you can start working on larger and more complex projects.

In addition to learning the Java language, you will also need to be familiar with the Java development tools and frameworks. The most popular development tool for Java is Eclipse, which is used by many professional developers. Other popular tools include NetBeans and IntelliJ IDEA. There are also a number of open source frameworks available for Java development, such as Spring and Hibernate.

Once you have gained experience with the Java language and development tools, you can start applying for jobs as a Java developer. Many companies require candidates to have at least two years of experience before they will consider them for a position. However, there are also many opportunities for entry-level developers. To increase your chances of getting hired, it is important to stay up-to-date on the latest trends in the Java community and to showcase your skills through online portfolios or blogs.

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