What Java Skills Are in High Demand by Employers?

As one of the most popular programming languages, Java skills are in high demand. It is a versatile language that can be used for developing a range of applications, from simple websites to complex enterprise systems.

With its ease of use and wide range of features, Java is an ideal language for beginners to learn. However, it is also powerful enough to meet the needs of experienced developers. As such, there is a great demand for Java developers with both skillsets.

There are a number of reasons why Java skills are so in demand. Firstly, the language is platform independent, meaning it can be run on any operating system. This makes it ideal for developing cross-platform applications. Secondly, Java has excellent security features which make it well-suited for developing financial and healthcare applications. Finally, the vast majority of Android apps are developed using Java, so there is a huge demand for Android developers with strong Java skills.

Spring Framework. There is no doubt that Spring is the king of the Java stack

The Spring Framework is an application framework and inversion of control container for the Java platform. The framework’s core features can be used by any Java application, but there are extensions for building web applications on top of the Java EE platform. Spring can be thought of as a layer of infrastructure support that makes J2EE development easier.

Spring is open source and was first released in 2003. It was created by Rod Johnson, who also wrote the best-selling book Expert One-on-One J2EE Design and Development.

The Spring Framework is very popular with developers, and is used by some of the biggest companies in the world, such as Netflix, LinkedIn, Ebay, and American Express.

The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications – on any kind of deployment platform. A key element of Spring is infrastructural support at layer 7 (the web tier), meaning that developers do not have to write their own boilerplate code to integrate various technologies when using Spring. This way, application developers can focus on solving business problems instead of wasting time on low-level details.

Apache Kafka

apache kafka
apache kafka

Kafka has a publish-subscribe messaging system as well as a storage system that can retain messages for a period of time. This makes it ideal for collecting data from multiple sources and processing it in near real-time.

In terms of Java skills, Kafka Streams is the most in-demand skill related to Apache Kafka. This library allows you to build robust stream processing applications quickly and easily. Other than that, any Java developer with experience in building scalable distributed systems will be able to pick up Kafka relatively easily.


REST APIs are typically built using the Java programming language, as it provides a robust and stable platform on which to build web services. There are a number of frameworks available for building REST APIs in Java, such as Spring Boot, DropWizard, and RestEasy. These frameworks make it easier to develop RESTful web services by providing libraries and tools for common tasks such as routing requests, serializing data, and validating input.

When developing a REST API, it is important to choose an appropriate URI structure that will make your API easy to use and understand. Your URI should be consistent with the resources you are exposing through your API and should use nouns instead of verbs to avoid confusion. For example, if you were exposing a resource called “customers”, your URI might look like:


It is also good practice to version your API so that users can always access the latest version by default. You can do this by including the version number in your URI:



In a nutshell, micro services are a way of structuring an application as a collection of small, independent services that communicate with each other over well-defined APIs. This approach has many benefits over traditional monolithic architectures, including improved scalability, better fault tolerance and easier deployment and management.

If you’re a Java developer looking to get into micro services development, there are some key skills you need to master. In this article, we’ll take a look at what those skills are and how you can acquire them.

One of the most important aspects of developing micro services is designing proper APIs for communication between services. This requires a good understanding of web service technologies such as REST and SOAP. You should also be familiar with JSON and XML, as these are commonly used formats for data exchange between micro services.

Building scalable applications is another necessary skill for anyone looking to develop micro services. Since each service in a micro services architecture is independent and self-contained, it’s important that they can be scaled up or down independently as needed without affecting the other services in the system. There are various techniques that can be used to achieve this goal, such as using container technologies like Docker. Familiarity with DevOps tools and practices is also helpful, as they can automate many of the tasks involved in managing large-scale distributed systems. Last but not least, it’s also important to have some experience with big data solutions like Apache Hadoop or Apache Spark, as many companies use micro service architectures to handle large amounts of data.

“If you want to be a Java developer, you need to have strong problem-solving skills and be able to think abstractly.” – John

CI (Jenkins, Bamboo, GitLab, etc.)

ci jenkins bamboo git lab etc
ci jenkins bamboo git lab etc

As a leading programming language, Java is used in a wide range of settings, from small-scale applications to large-scale enterprise systems. In order to keep up with the demand for Java developers, it is important to stay up-to-date on the latest skills and technologies.

One area that is particularly in demand right now is CI (continuous integration). CI tools like Jenkins, Bamboo, and GitLab are used to automate the process of building and testing code changes. This can help reduce errors and improve efficiency overall.

If you’re looking to add CI to your skill set, here’s what you need to know. First, you’ll need to be familiar with basic concepts like version control and automation. Once you have a good understanding of these basics, you can begin learning about specific CI tools. Each tool has its own strengths and weaknesses, so it’s important to choose one that will fit well into your existing workflow.

Once you’re comfortable with a particular tool, you can start exploring more advanced features like pipelines and triggers. These features can help further automate your workflow and make it even easier for teams to work together effectively.

If you’re looking for a challenge, you can also learn about setting up Jenkins slaves or distributed builds. These are both advanced topics that require a good understanding of how Jenkins works before attempting them. However, once mastered they can be extremely powerful additions to your toolkit.



Popularly known as ORM, hibernate Framework is an open source, lightweight, java library which is used to develop enterprise applications. The main advantage of using Hibernate Framework is that it reduces the boilerplate code that needs to be written for interacting with databases and for performing common CRUD operations.

Hibernate Framework comes with many features such as automatic dirty checking, lazy loading, connection pooling etc which makes it a very powerful tool for enterprise application development.

In this article, we will take a look at some of the most important features of Hibernate Framework and how they can be used in developing enterprise applications.:

1) Automatic Dirty Checking: Dirty checking is a feature of Hibernate which detects any changes made to objects which are being managed by hibernate session. When any change is detected, Hibernate automatically updates the database so that changes are persisted. This feature greatly reduces the amount of code that needs to be written for handling data modifications.:

2) Lazy Loading: Lazy loading is another powerful feature of Hibernae which allows you to load only those objects from database which you need at runtime. This enhances performance as well as reduces memory footprints.:

3) Connection Pooling: Connection pooling improves performance by reusing existing connections instead of creating new ones each time when required.: 4) Second Level Cache: Second level cache stores frequently accessed data in memory so that it can be quickly retrieved without hitting the database each time.: 5) Transparent Persistence:Transparent persistence means that application code does not need to be changed in order implement persistence using hi be rant e framework .


While there are many different programming languages that can be used to interact with databases, SQL is by far the most popular. This is due in large part to its simple syntax and ease of use. In addition, most database servers support SQL, making it a universal language for interacting with data.

If you’re looking to get started in coding or want to add another skill to your toolkit, learning SQL is a great choice. Not only will you be able to easily work with data in any database system, but you’ll also have a valuable skill that employers are always searching for.

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