One option is to move into a lead developer role, where you would be responsible for managing a team of developers and overseeing the development process. Another option is to move into a senior developer role, where you would be responsible for more complex development tasks and working on larger projects. Alternatively, you could move into a management role, where you would be responsible for the overall development process and strategy for your organization. As microservices becomes more popular, Java backend developers will be in high demand because they are well-equipped to build these types of systems. By learning about microservices and how to implement them, Java developers can ensure that they are prepared for the future of technology.

Potential job candidates should know SQL queries, database operations, and data structures. To be a great junior Java developer, you need to know how to communicate with your team, ask questions, and learn new skills. Alternatively, software engineers have a broader skillset to work on different programming languages and projects. As Java developers and software developers have similar roles and skills, many professionals transition between the two roles for variety, a new challenge, or to learn new skills. Developed first in 1995 by Sun Microsystems, Java is a concurrent, class-based, and object-oriented programming language based on the syntax of C and C++. Thus, it’s preferred to develop applications like software design, gaming technology, and web and mobile applications.

Java Developer Responsibilities

As Java development requires a lot of technical knowledge and expertise, the best developers are always learning. When hiring a developer, look for someone who can continue to grow their skills on the job. Next, you’ll want to practice your new Java skills and build a portfolio to show potential employers. You should aim to create several Java applications for your portfolio (including at least one web application). These projects don’t have to be sophisticated or perfect, as they are simply a way for you to demonstrate that you can develop a range of applications with Java.

What does a Java Developer do

Java is one of the most popular programming languages in use today. It’s used by millions of developers to create everything from mobile apps to enterprise software systems. To be an excellent full-stack Java developer, you need to learn Java and build your expertise in database management, object-oriented programming, and project management. You’ll also need excellent communication and problem-solving skills as Java developers solve technical issues with the rest of their business’s IT department. Sun Microsystems released the first public implementation as Java 1.0 in 1996.[25] It promised write once, run anywhere (WORA) functionality, providing no-cost run-times on popular platforms. Fairly secure and featuring configurable security, it allowed network- and file-access restrictions.

Career pathing

We’ve partnered with Europe’s most innovative tech companies to help them find brilliant Java developers like yourself. Stop wasting time with fruitless job searches and use our job board instead. According to Stack Overflow, the average Java salary worldwide in 2022 was almost €58,000 a year. Salaries might depend on experience and on if you’re a senior developer or not yet. You should also familiarise yourself with the Java Development Kit (JDK), the Java Runtime Environment (JRE), and the Java Virtual Machine (JVM). JDBC (Java Database Connectivity) and JPA (Java Persistence API) are among the essential tools you need to know.

What does a Java Developer do

These applications usually have a GUI and use TCP/IP sockets to transfer data, which means they need to be accessed via a network. Java developers often interact with Java applets, which are small programs designed to be embedded in other applications or web pages. Applications built in Java are very popular because of their compatibility with multiple platforms and the power of programming for both the client and server side. Java developers can be responsible for unit testing the code to check for bugs. Unit testing is a process where software developers look at an application’s individual units of code and make sure they work right.


One who has more than 10 years’ experience in Java may get the position. The lead Java developer design and recommend technical solutions for IT-related issue. The lead developer works with the senior developer and ensures the quality of the product, identifies the issues that may affect the project delivery and also monitors the junior level staff.

What does a Java Developer do

However, you should know the best ones for the Java programming language. All software programming is done through coding languages, and Java is one of the top languages in today’s tech fields. A Java developer is someone who specializes in developing software using the Java programming language.


To become a successful Java backend developer, it’s important to have a strong understanding of object-oriented programming (OOP) concepts. Additionally, it’s helpful to have experience working with relational databases and SQL. Java backend developers are in a unique position to capitalize on this trend, as they have the skills necessary to create secure, reliable software. By specializing in security, Java developers can help businesses protect their data from hackers and other threats. Junior Java developers are entry-level programmers who are part of a team of coders and developers. They work on both front-end and back-end codes to build an application.

Not surprisingly, demand for Java Developers is expected to grow between now and 2024 by up to 19%. The median salary for US-based Java Developers is over $70,000 and goes up depending on career level, experience, and location. As developers must update programs to ensure they’re functional and secure, you need to develop regular updates. You will need to plan, design, test, deploy, and collect user feedback on the update to build efficiently.

Spring Framework is a comprehensive framework for developing Java applications. It provides infrastructure support, so developers can focus on application development instead of routine system-level processes. Java developers, like other software professionals, need to understand a host of technical terms and jargon. However, there are some specific terms that are central to Java development.

It was released in May 1995 as a core component of Sun Microsystems’ Java platform. The original and reference implementation Java compilers, virtual machines, and class libraries were originally released by Sun under proprietary licenses. As of May 2007, in compliance with the specifications of the Java Community Process, Sun had relicensed most of its Java technologies under the GPL-2.0-only license.

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