Need to hire a Java developer? Look for these six must-have skills.

Despite the advent of new technologies like Python, Java continues to be the premier choice for building secure, scalable & robust web applications. The fact is that 7.1 million programmers use the Java language worldwide without any doubt. We can say that Java is a coding language with tremendous demand and Java developers are the most sought-after asset for IT companies around the world.

Java is stupendously used in every possible application software. Hence, it is essential to understand how important it is to achieve hands-on experience in the latest framework and libraries. Being a Java Developer requires effort and dedication, but this path is an investment. These invested skills will take your career to the next level time and again as you go.

Whether you are an aspiring Java developer seeking pro tips to improve Java skills or an experienced coder who hopes to bag their dream job in a big MNC, read this blog post to know the six must-have skills to achieve your goals.

#1 DevOps Tools

DevOps tools facilitate effective sharing and exchange of resources, mainly in the business sector. The tools make it easier by bringing in new flow and addressing critical aspects of your DevOps environment by automating the process chain using Build, Test, Deploy, and Release features.

DevOps’ knowledge of various tools such as Jenkins, Docker, and Kubernetes is a must for a modern Java coder. THESE DAYS, most IT companies check whether the interviewing candidate is familiar with the continuous integration & deployment of these tools.

Although a beginner in Java needs basic knowledge to crack the job interview, a senior Java developer must be familiar with the best coding practices, creating environments, guidelines, and building scripts.

It is profoundly recommended that a Java coder must learn the DevOps tools such as Kubernetes and AWS, along with Jenkins and Maven.

#2 Spring Framework

A Java developer must be familiar with the Spring Framework. Most IT companies prefer Spring Frameworks such as Spring Boot, Spring MVC & Spring Cloud for coding web applications and APIs.

Spring Framework is a critical requirement for modern-day software, makes web applications testable. It provides a comprehensive programming and configuration model for modern-day Java-based enterprise applications. The critical element of the Spring Framework is its infrastructural support at the application level. Spring makes programming Java quicker, easier, and safer for everybody. Its focus on speed, simplicity, and productivity has made it the world’s most popular Java framework. So indeed, every Java Developer must familiarise themselves with the Spring Framework.

If you are a fresher, start with a Java and Spring tutorial to learn the basics of this incredible framework. However, if you are familiar with the Spring framework, start exploring the advanced options like Spring Cloud and Spring Boot for developing feature-rich Java applications.

#3 JUnit and Mockito

What draws a fine line between an average Java developer and a good Java programmer is the unit testing skill. An experienced and talented Java coder writes unit tests for their code.

JUnit and Mockito are both open-source tools. JUnit is a programmer-oriented testing framework for Java made simple to write replaceable tests. JUnit is xUnit architecture for unit testing frames. Mockito is a mock testing framework applicable for unit tests in Java. It enables you to write clean and straightforward API (Application Program Interface).

Testing over the past decade has come a long way with many advanced tools for unit testing, automation testing & integration testing for Java developers.

For those new to Java, testing JUnit is the best library to begin. Then, you may move onto Mockito to strengthen your profile as a specialist Java programmer.

#4 Learn APIs and Libraries

If you ever spoke with a professional Java developer working in a top IT company, you probably notice their extensive knowledge of APIs and the Java ecosystem.

Java is the world’s most prominent programming language with tons of APIs and libraries for doing anything and everything. To be a better Java developer, you must be familiar with some of these key APIs, such as XML processing APIs, JSON processing APIs, and Unit Testing libraries.

#5 JVM Internals

If you want to be a serious Java programmer or developer, start learning the JVM intervals, their different parts, and their functionalities.

Java Virtual Machines(JVM) is a machine whose purpose is to execute other programs. As it is one of the skills a Java Developer must familiarise themselves, its functions are pretty primary. JVM functions to allow Java programs to run on any device or an operating system. The secondary function it holds is to manage and optimize program memory. JVM’s three aspects are considered to be specification, implementation, and instance.

If you are well-aware of the JVM Intervals, you can easily code high-performance and robust Java applications using them.

#6 Microservices

Microservices are primarily used in the development world. They are an architectural style that develops a single application as a small service set. Microservices like Ninja Web Framework, Play Framework, Restlet, and Spark Framework are examples that can be used to develop Java.

Developers require this skill to create more complex applications that are better developed and managed as a combination of small services that work tenaciously together for more application-wide functioning. Microservices resolves organizational issues. Many hyper-growth companies like Netflix and Twitter make use of Microservices. Hence, it makes an essential skill a Java Developer must know.

The Java architecture is continuously changing; IT companies worldwide are making a transition from monolithic applications to microservices. It is the right time to learn about the Microservices architecture and create Microservices to stay in line with the growing trend.

Let’s Wind Up

To crack the Java interview from a top MNC, you need to be confident first so that the interviewer can trust your skills and open the door of opportunity in front of you. Whether it is simply a software developer, you must showcase your abilities and skills with relevant certifications.

Author Bio

Viswanathan AG is a professional IT trainer with Edoxi Training Institute Dubai also extensive experience in programming. He is an expert in designing training courses with technical content and real-time examples. He is effective in imparting knowledge through superior verbal communication skills and an active listening style.

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