Java Developer Roles and Responsibilities

No more ado, here is the list of the top 10 certifications for Java developers that are worth earning in 2023. Yes, Java developers can specialize in areas like finance, healthcare, gaming, and e-commerce, tailoring their skills to industry-specific needs. It’s used in web development, mobile app development, enterprise software, and more. They analyze software to identify bugs, glitches, and other issues that may arise. Once a problem is detected, they apply their analytical skills to debug and troubleshoot, ensuring the software performs seamlessly. Ads that specify Java often specify a number of languages and environments – a strong candidate is one who knows a lot of go-to technologies and has applied them successfully on the job.

What does a Java Developer do

Gosling developed Java while working as an engineer at Sun Microsystems (a subsidiary of Oracle today). The United States Bureau of Labor Statistics estimates there are more than 1,469,000 software developers around the country. According to data from 2021, 35.35% of those developers use Java, one of the world’s top five most widely used programming languages. A Java Developer is a specialized programmer who mostly works on backend services. They collaborate with fellow web developers, software engineers, and others teams to use Java to enhance business applications, software, and websites. A perfect blend of technical and soft skills makes a good Java developer.

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Bachelor’s Degree or Master’s degree in Computer Science, Computer Engineering or related field is preferred by many employers. Hands-on software development experience, especially in Java, will boost your chances of bagging a high-paying Java developer job. A developer is responsible for several Java-related duties throughout the software development lifecycle, from concept and design to testing. The developer is required to create user information solutions through the development, implementation, and maintenance of Java-based components and interfaces. Java backend developers can also receive off-the-job training in the form of conferences and seminars.

What does a Java Developer do

Hibernate is a Java framework used for developing object-relational mapping and data access layers in applications. Backend developers must ensure that servers are running efficiently and troubleshoot issues as they arise to provide users with seamless experiences. They often use tools like Java Management Extensions (JMX) to monitor system performance and make necessary adjustments. An Oracle Certified Master, Java SE 6 Developer certification requires 12 months of being an Oracle Certified Professional Java Programmer.

The Ultimate Guide to Top Front End and Back End Programming Languages for 2021

These tools help develop backend logic, process data, manage database connections, and handle HTTP requests and responses. This is why many people consider Java to be a server-side language — primarily a backend tool. With all of this said, it’s little wonder that Java developers are highly sought after, especially in the DACH region, where programmers are an important part of the tech landscape. Continuous surveys estimate that around one in every three developers works with Java, which means that the figure would stand at more than 300,000 developers in Germany alone. With such high demand, this article explores what it takes to become a Java developer and discusses the technical skills required for success in this exciting field. According to our survey results, more organizations are turning to Java as the language of choice to help modernize their applications.

A Java developer should expect to answer very technical questions at a job interview. There are online sites where sample interview questions can be viewed. A senior Java developer may analyze complex problems, develop documentation, review coding, and evaluate the development process. EE architect is among the highest positions a developer can attain.

Career pathing

With strong team support and significant freedom and self direction, you will experience the wealth of interesting, challenging problems that only a high growth startup can provide. Maven and Gradle are powerful build automation tools used in Java projects for managing dependencies, compiling source code, running tests, and packaging the code for deployment. You can also check our backend developer jargon list for more items. JPA (Java Persistence API) is a Java specification for accessing, persisting, and managing data between Java objects and a relational database. JVM (Java Virtual Machine) is an abstract computing machine enabling a computer to run a Java program. It converts Java bytecode into machine language, making Java a platform-independent language.

If you want to see the full range of Java developer salaries in the US, take a look at the bell curve graph below. Bharathy K was able to restart her career after being on a break once she completed our Full Stack Java Developer Master’s Program. Read her incredible comeback on our Simplilearn Full Stack Java Developer Review here.

What is Java?

But earning certifications can broaden your career growth over other professionals who don’t have any. It will be a competitive advantage for you to get recognized in the hypercompetitive job market to enhance your earning potential. More advanced developers might want to take their skills up a notch with professional certifications. Employers often specify degrees in computer science, engineering, or other closely related fields. A developer should know a good deal beyond code; to advance, one should be proficient at different stages of the life cycle.

  • Understanding program architecture is crucial, as it’ll inform how you develop new projects.
  • Hibernate is a Java framework used for developing object-relational mapping and data access layers in applications.
  • Yes, Java developers can specialize in areas like finance, healthcare, gaming, and e-commerce, tailoring their skills to industry-specific needs.
  • On the r/LearnJava subreddit, you’ll find Java resources, book recommendations, and posts from people looking for feedback on their code.
  • Learning HTML and CSS is essential for any career path in web development.

Interestingly, PHP, a Java descendant, is used in over 82% of websites whose server-side programming is known. If you’re interested in becoming a Java developer, you can take six simple steps to build your skills and become a Java expert. As Java is an OOP language, you should understand the four OOP principles and the SOLID principles of OOP development.

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While the language doesn’t seem to be used by many sites, it is used by sites with high traffic almost exclusively. Well-known websites that rely on Java include LinkedIn, Chase,, and In the world of computer programming, Java is one of the older languages. Sun Microsystems developed the language in 1995 based on the syntax of C and C++. As a swiftly changing field, many IT experts say titles don’t matter – the job description and responsibilities do. As Java development requires redesigning and fixing code that isn’t working, a good developer can review their code, find errors, and fix problems quickly.