What You Should Know To Get Your First Job as a Java Programmer

Have you made up your mind to become a Java developer? Or have you already completed the courses, got some knowledge but are unsure what to do next?

This article will shed light on the most typical tasks of a Java expert and the must-have skill set that will help you feel secure at the interview and further.

Let’s check all of that out!

Typical Tasks of a Java Developer

Java development is not just about writing code. You will have many more tasks as soon as you have your first job, ranging from thinking out of the box to designing new solutions to testing your code and writing documentation. Here are the most typical of your future responsibilities:

  1. Designing new solutions
  2. Writing tests
  3. Finding & fixing bugs
  4. Code review
  5. Code analysis
  1. Refactoring code
  2. Writing documentation
  3. Various meetings

Thus, you should be prepared to see those tasks in the job description and ready to accomplish them when you are hired.

Let’s move on to the most vital skills you will be expected to have.

Key Skills of a Java Developer

As you might have guessed from the vast range of Java experts’ responsibilities, you must have a diverse set of skills and abilities to be able to do all of those. A solid command of the fundamentals and an awareness of the most recent advancements together with communication skills are only some of them.

Here is a more detailed list:

Technical Skills

A variety of technical abilities are required to pursue a career as a Java developer. These skills include:

Core Java

Core Java is commonly used to refer to the programming language’s fundamentals. If you have any doubts related to core Java, check out this CodeGym’s Java blog with all the questions answered by experts.

Core Java is made up of the following elements:
  • Java syntax: Java syntax is a sort of language ABC. The basics of programming, such as loops and branches, are the most difficult areas to grasp here.
  • Object-oriented programming (OOP): The goal of the OOPs ideas in Java is to increase code readability and reusability creating a Java application.
  • Collection framework: The Java collections framework provides access to pre-packaged data structures as well as data collection manipulation techniques.
  • Streams: Java Streams are essentially a collection of aggregate operations that may be used to handle a set of data.
  • Multithreading and synchronization: Multi-threaded applications frequently attempt to access the same resources, resulting in erroneous outcomes. As a result, synchronization techniques must be used to ensure that only one thread can simultaneously access the resource.

Spring Framework

The Spring Framework is a Java platform application framework and any Java program can use the framework’s main functionalities. Spring framework comes with various other resources:

  • Spring boot: Spring Boot assists developers in creating standalone apps that operate on their own.
  • Spring MVC: Spring MVC is a Java framework for developing web applications.
  • Spring clouds: Spring Cloud is an open-source package that provides tools for easily deploying JVM-based applications to clouds.

Testing Tools

A skilled and talented Java developer usually develops unit tests for their code. If you want to get a good understanding of JUnit and unit testing in Java, the JUnit and Mockito Crash Courses are a great place to start.

APIs & Libraries

There are countless Java libraries and APIs available to do almost anything. You do not need to know all of them, but you should be familiar with a few key ones. Consider starting with Jackson and Gson.

JVM Internals

The Java Virtual Machine is abbreviated as JVM. It’s the application that runs Java programs. Overall, the JVM is what allows Java applications to run, and it’s also what makes Java a beginner-friendly programming language.

Design Patterns & Architectural Patterns

When developing a Java program from scratch, you always write object-oriented code. Knowing about them and implementing them into your code makes your application more adaptable and easy to update in the future.

DevOps Tools

DevOps is a set of techniques and technologies meant to improve an individual’s capacity to produce apps and services more quickly than traditional software development procedures. Jenkins, Docker, and Kubernetes are a few examples of effective DevOps tools.


One of the most significant characteristics of superior Java developers is the command of their tools. IDEs such as Eclipse, NetBeans, and IntelliJ IDEA are the most crucial tools for a Java programmer.


Hibernate is a Java framework that makes creating Java applications that interface with databases easily. It is a free and open-source ORM (Object Relational Mapping) tool.

Build Tools

Mastering the language of Java Build tools is useful for a Java developer since they are the programs that facilitate the development of deployable programs from source code. Maven and Gradle are two build tools that every programmer should be familiar with.


Git allows many developers or teams to operate independently without interfering with the work of others. Git offers low-cost local branching, easy staging spaces, and a variety of workflows.

SQL & Databases

This is another common technical skill that will assist you in troubleshooting backend difficulties. You can decipher the stored procedure, query the database, and determine if the problem is in the Java or database layers if you know SQL.

Web Services

Web services enable you to make the functionality of your current code available via the network. Essential web services that a programmer should understand and grasp are REST, Big JAX-WS, and JAX-RS.

Web/App Server

The primary distinction between a web server like Apache Tomcat and an application server like JBoss is that a web server serves static pages like HTML and CSS, but an application server generates interactive content by running server-side code.

If after reading this section you feel you need more experience to apply for the job, you can visit CodeGym with its 1200 practical java tasks.

Soft Skills

Soft skills help people navigate their environment, work well with others, perform effectively, and accomplish goals. Soft skills for Java developers include:

  • Communication skills: Communication skills involve adjusting your communication style to your audience to deliver your message more effectively.
  • Being open to learning: Successful Java Developers should constantly be eager to learn new advancements in technology.
  • Teamwork: Teamwork helps to finish a job efficiently and effectively.
  • Work ethics: Concentrating on principles and ethics improves total production and quality of work.

  • Interpersonal skills: The greater one’s interpersonal skills, the faster one’s career will advance.

If you learn, train and develop all of the mentioned skills, you will definitely have a competitive advantage over most other applicants.


Now that you know the typical Java coder responsibilities and the skills necessary for the job, you can understand whether you are ready to write your first application. In case you need to gain more experience, try to exercise more. Remember that programming is a talent that can only be learned via a lot of practice.

Hope this article will help you.

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