Java Developer is a demanded specialty with high salary. This is due to the popularity and reliability of the Java programming language. It can be used to write software for a wide variety of fields and tasks. And also Java has gained a huge professional community and continues to develop. It doesn’t look like it’s going to give up its position.
What a Java Developer Does
A Java Developer is a pro who writes and maintains software in the Java programming language. He builds websites, mobile applications, enterprise programs and games, and works with documents, databases, web services and so on.
Java Developer participates in designing application architecture, develops new features and modules, is responsible for testing and debugging. He is engaged in optimization of software performance and its cyber protection.
A Java Developer requires deep knowledge and experience with Java technologies such as Java EE, Spring Framework, Hibernate, etc. And developed soft skills to collaborate effectively with analysts, testers, project managers, UI/UX designers and other team members.
Main tasks of a Java Developer in IT
A Java Developer can work on various tasks and projects related to creating and maintaining software. First of all, you need to understand that this profession has 4 main areas:
- Fullstack – development of both client and server side of the software;
- Backend – server logic, databases, information processing, etc;
- Enterprise Java development – creation and support of corporate systems on the Java platform;
- Mobile development – applications for Android using Java and Android SDK.
There are other options like machine learning, internet of things or frontend. Each of these may require additional knowledge and tools. Java for beginners is most often mobile development or Backend.
Here’s what a Java Developer does:
- Analyzing requirements. Specifications can also contain bugs or just be ambiguous. It’s much easier and cheaper to fix bugs at the beginning than in the finished product;
- Application Architecture Design. Determining the optimal structure, components and mechanism of interaction between them;
- Code development and refactoring. After getting complete and clear requirements Java Developer can start development. It involves writing code and improving its readability and performance;
- Testing and debugging. A Java Developer writes unit tests to verify the correctness of the software. Such a specialist may participate in integration testing and white-box testing. He is also responsible for debugging and eliminating the errors found;
- Support and maintenance. A Java Developer provides technical support for their applications to ensure that they run smoothly;
- Integration of components and systems. Java programmers work on integrating different components and systems to ensure efficient communication between them. They integrate databases, web servers, APIs, and other elements to create comprehensive applications;
- Version control. Using version control systems such as Git to track changes and collaborate on code;
- Performance Optimization. A Java Developer seeks to improve application performance by optimizing its code and architecture. He looks for ways to speed up performance, reduce resource utilization, and improve the responsiveness of the user interface;
- Databases. Java developers work with different databases, such as relational and NoSQL databases. They create and optimize queries, ensure security and integrity of information. They use ORM (Object-Relational Mapping) tools that allow them to interact with the database using an object-oriented approach;
- Collaboration with other team members. A Java Developer interacts a lot with other developers, designers, testers, Project Managers, etc. Collaboration with colleagues is an important part of his work. He should be able to share ideas and work effectively in a team;
- Documentation. Preparing technical documentation to describe the code and functionality of the application;
- Mentorship. Senior Java Developer can mentor junior or trainee level employees;
- Self-development. Professional development, learning new technologies and Java programming tools to perform more complex tasks and stay relevant in the labor market.
This is a very broad brushstroke through the responsibilities of a Java developer. Every field has its own tasks and peculiarities. And everything also depends on the skills and the number of additional technologies that such a specialist uses.