How To Hire Java Developers – Recruiter and Employer Guide for 2023
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How To Hire Java Developers – Recruiter and Employer Guide for 2022

Java developers remain an indispensable part of tech teams. Here is a simple guide on recruiting and evaluating professional Java developers to meet your business goals.


Java has a long history of being one of the most widely used programming languages. Its popularity can be judged by the fact that major companies such as Google, Pinterest, Instagram, Uber, Spotify, Airbnb, and Netflix use it as a crucial component of their technology stack.

In today’s world the demand to hire Java developers is growing. A recent survey of developers who use Java as a primary programming language found that in 2021, Java was most commonly used to create websites (39%), followed by utilities-related apps (26%), system software (19%), and fintech software (16%).

Java is frequently used as a programming language for: 

  • Apps that run in the cloud
  • Creating mobile applications
  • Graphical User Interface Programs for the Desktop
  • Video Game Apps
  • Web-Based Programs
  • Systems for Analyzing Big Data

Roles and Responsibilities of Java Developers

Java developers play a crucial role, and their knowledge, experience, talent, and skills help increase business revenue. Hiring Java developers is a good idea for companies interested in adopting cutting-edge technologies like the cloud, AI, and others.

The primary duties of a Java Developer are application design, development, and testing. They have the expertise in Java to develop and manage reliable, high-performance Java applications that can handle mission-critical workloads with minimal downtime.

A Java developer needs to be able to translate client needs into solutions that take advantage of Java’s capabilities. Here are some examples of typical responsibilities, though they will vary by company and by position:

  • Designing, implementing, and maintaining the lifecycle of Java-based applications
  • High Availability and Efficiency
  • Involvement in a wide variety of architectural and software development tasks
  • Coding in a way that is clean, efficient, and easily testable.
  • Analyzing, testing, developing, and fixing software.
  • Managing the operation of Java and Java EE applications.
  • Developing frameworks for high-volume, low-latency, mission-critical apps.
  • Identifying Java-related application problems that are not production-related and those that are production-related.
  • Improve the efficiency of Java programs by suggesting tweaks needed to be made.
  • Responsibilities for both deployment and maintenance.

Advantages of Hiring Java Developers

The process of finding and hiring Java developers varies depending on the specific needs of each company. Because of the wide range of expertise offered by Java developers, it shouldn’t be difficult to find a good fit for your company’s specific requirements.

The following are just a few of the many positive outcomes of businesses employing Java developers.

Access to Specific Skills

Sometimes, the people or resources that possess the expertise your company requires aren’t in the same geographic vicinity. What makes hiring a Java developer appealing is its flexibility in terms of location.

While some businesses might be interested in employing an in-house developer to build applications, others might be looking to hire a Java engineer to manage a team of developers who are outsourced. Finding the right Java programmer for the proper role can give a company access to the resources it needs to thrive.


Because Java developers have such a wide range of skills, companies can benefit from increased adaptability in the projects they undertake and their workload.

Automating mundane but essential processes like the hiring process can free up more time for strategic initiatives.Moreover, the composition of the team is dynamic. A skilled Java programmer can step in and make up for the lost time.

Avoid Application Issues

Hiring an experienced Java developer helps businesses foresee and prevent potential issues, allowing them to keep operations running smoothly.

What Should Companies Look for While Looking to Hire Java Developers?  

Hiring a java expert is not a piece of cake; instead, you must go through a proper process and keep in mind certain things that you should look for in your candidate to hire a talented and top-notch developer for your company.  

Skill set required for this particular job

Every company has its own preferences depending upon the type of the job, so you need to be well aware of the skills you should look for in your candidate.  

Must fit in your company’s culture  

Another important thing that you should look into with your Java developer is the ability to fit into your company’s culture.  

Should possess problem solving skills

Every java developer needs to have the skill of creating, deploying, and managing the code efficiently. Moreover, they must give you the solutions that actually work. Hence it is better to consider conducting a live technical test as it will better assist you in determining their capabilities.  

Must have specialist Java development knowledge

When hiring someone for the job, it is highly significant to know whether they possess the technical expertise needed for performing the basic concept of Java that is essential for the application’s development.  

Furthermore, it is worth mentioning here that it is easy to flex the skills on the CV, but when it comes to the practical application, many developers fail. Therefore, it is crucial to take a test before hiring to know whether they have the required expertise in the field of Java development or not. 

How To Write a Java Developer Job Description?  

When writing the description for the Java developer, it is crucial to include all the essential details, such as the skills you are looking for and the salary you will pay. Here we are going to share a java developer job description that will assist you in knowing how you can write a description.  


At the beginning of the job description, it is essential to mention the necessary details regarding your company, including mission, values, and the awards you have won. It will surely assist you in grabbing the attention of the top-notch java developers.  

Java Developer Responsibilities  

Secondly, it is imperative to mention the responsibilities of the java developer after joining your company.


In addition to that, if you want to hire people having a particular degree, then you must provide them with the details regarding it as well. In this way, the candidates will get to know clearly, and there will not be any ambiguity.  

Call to action  

In the end, you should provide them with your email address or the address and ask them to apply. Furthermore, if you have a website, it is better to give them the link to automate the hiring process. 

Essential Java Developers Skills and Certificates 

If you are going to hire a java developer, then it is highly significant to make sure that the candidate you are going to hire must have some hard as well as soft skills. So, let’s start with soft skills. 

Soft Skills  

Always remember that if the candidate doesn’t have the essential soft skills, the hard skills have no worth. 

Communication Skills  

The most important skill is communication, so you should hire a person that knows this skill and can communicate with others in a good way.  


Another important skill you need to look for in your candidate is teamwork. If the employee collaborates with the other members of the team, then it will assist in increasing productivity. 

Always ready to learn new things.  

It is important that the candidate has a growth mindset and positively takes criticism and uses it for their growth. Moreover, they should be ready to learn new things. 

Hard Skills 

Software Design and Architecture  

Every Java developer should have skills in architecture and software design. 

Design Principles  

Here we are going to jot down all the design principles that are highly essential for every Java developer to have: 

OCP (Open/Closed Principle) 

DIP (Dependency Inversion Principle) 

ISP Interface Segregation Principle 

SRP Single Responsibility Principle  

LSP Liskov Substitution Principle  

Architectural Patterns  

Some patterns developers are required to learn, and we will enlist them below. 

  • Client-Server Pattern  
  • Pipe-filter pattern 
  • Peer-to-peer pattern  
  • Master-Slave Pattern  
  • Event bus pattern  
  • Blackboard pattern  
  • Model View Controller pattern  


It is needed for a java developer to know about the microservices. Following are the microservices patterns that every java developer should be aware of.  

Time-based security  

Handling sensitive information  

Docker Rootless Mode  

Cloud and Cluster specific security  

Delivery pipelines  

Access and Identity tokens  

GraphQL APIs  

Some other skills 

In addition to the skills mentioned above, there are also other skills that your candidate must have are: 

  • JUnit and Mockito  
  • Spring Boot  
  • Design Patterns  
  • JVM Internals  
  • React or Angular  
  • IDE Eclipse or IntelliJ  

How to Interview a Skilled Java Developer? 

If you are going to conduct an in-person interview to recruit the Java developers, here are some tips that will surely assist you in hiring the right candidate, so let’s dig into it without any delay.  

Involve the developers in the process  

If you want to have a highly talented team, it is worth involving at least 4-5 senior developers in the interview process. It will surely help in figuring out the capabilities of candidates, and a manager alone can’t do it.   

Give proper time to interview  

You must give a proper time to interview. Ask all the essential questions, ask the candidate for practical demonstration of the skill, and ask them to solve a problem. It will aid in hiring the right person for the job post; otherwise, if you do it in the hustle, you may end up hiring the wrong person.  

Take decisions clearly   

Keep in mind that if a recruiter has all the skills required for this job, then there is no need to delay the hiring. On the other hand, if a recruiter shows more red flags, it is better to say NO. It will lend a helping hand in making the interview and hiring process relatively easy.  

Process of Interview 

  • It is suggested to provide them with a clear introduction of your company and tell them about your company’s objectives.  
  • After that, you have to ask the candidate about their past job experience, principal achievements at this job, and how they have helped in adding value to that project.  
  • It is essential to mention here that owing to the NDA agreements, there will be some candidates who will not be willing to talk about their previous work experiences.  
  • To know whether the person you will hire is competent or not, it is better to ask them some tricky questions. Furthermore, if you want to figure out their skill better, give a programming problem as well.  
  • In addition, you must ask the candidate if they have any questions to be asked of you.  

Interview Questions You Should Ask Before Hiring a Java Developer.

In this section of the article, we will mention some of the technical questions you need to ask your candidate so that you can evaluate their skill set. So, let’s have a look.  

  • What is your understanding of the JDK, JVM, and JRE? 
  • Elaborate public static void main? 
  • Describe static class? 
  • What is the objective of the static variables and the static methods? 
  • What do you know about the technique? 
  • Describe the various signatures of methods? 
  • Why do we use the word platform-independent for Java? 

Skill Tests Evaluation

There is always the risk of hiring incompetent Java developers when putting together a team. In that case, you’ll lose money because it will take time and resources to train them to be productive team members for your project.

As a result, it is recommended that you evaluate and test the candidate’s knowledge of Java to find the ideal Java developer and avoid possible problems. Here, we’ve compiled a list of some skills assessments that can help you dig up a hidden gem for your endeavor.

  • Java MCQ Online Test for Hiring the Best Java Developers. Quantifying the skills required for Java architect roles, such as annotation, auto wiring,  demand mapping, aggregate functions, and so on, is essential.
  • RESTful Testing. Perform an evaluation of your abilities in areas such as JAX-RS, a framework built on top of REST web services, and RESTEasy, a framework for securing REST web services.
  • Online Core Java Test
  • Java Full Stack Developer Test. Perform skill assessments on a wide range of topics relevant to full-stack Java development, including but not limited to: regular expressions, strings, the Burndown chart, modeling and demand mapping
  • The Java Practical Exam for Selecting Experienced Mid Level Java Developers.
  • Online Advance Java Assessment for Hiring Proficient Senior Programmers.
  • An online evaluation of Spring Boot knowledge and expertise, including annotations, security, dependencies, lines, and configuration, is available to prospective employers.
  • Liferay Online Test Use metrics to evaluate competencies like the number of portlet applications, classes, and portlet deployments in Liferay.

How much Does it Cost to Hire Java Developers?

When coming to the cost of hiring the Java Developer, then it varies from place to place. So, here we are going to share the details about the cost of hiring the java developers in the main hubs of java developers.  

Typically a freelance java developer usually charges $61-80/hour. But it is important to mention that this is not a fixed rate. It varies depending upon types of engagement, such as freelance, temp, or part-time. In addition, the rate also fluctuates depending upon whether the job is fully remote or physical.  

Here are the salaries of the java developers in some countries in the year 2021: 

Average Salaries of Java Developers

What Determines the Cost of Hiring Java Developers?

Now that we are familiar with and understand the fundamental guidelines for hiring Java developers, we will move on to the factors influencing the cost. We’ll cover tips that should be kept in mind by any company looking to hire a Java development team or individual Java developers.

Skills Required For Your Project

Your company’s success heavily depends on the caliber of employees you hire. Therefore, when hiring a development team, it is important to verify that they possess the necessary skills, experience, and knowledge in areas such as knowledge of API integration, platform, and framework. Cost insight of the process by which Java developers construct an application is a valuable commodity for businesses. You can also propose your requirements to see if the Java developers you have opted for can do it.

The project’s overall scope

At the outset, you should know how long the project will take, what it will entail, and what features it will need. Many factors, such as the developer’s location, technological expertise, and experience, contribute to the cost of hiring a software developer, all of which are related to the complexity of the Java development project. Experienced Java developers with industry experience can advise businesses on what they can expect regarding timeline, resources, and cost.

Size of the Team

The complexity of the project would determine the size of the team. Each team member’s salary is based on their experience and expertise. To put it another way: if you don’t hire enough people, the project could take longer than expected and cost more money. Create a plan of action and build a group of people who can implement it successfully to achieve your goals.


The last but certainly not least factor when looking to hire a Java Developer is location. Consider the developer’s location when estimating how much it will cost to hire a developer. If you’re located in an area with a high cost of living, outsourcing to developers in other countries may be your best option. How? By using an outsourcing service for software development. Java developer outsourcing offers the same conveniences and customization in app creation as in-house development.

Hire The Best Java Developers Through Gaper

The need to hire qualified developers has become increasingly evident to most companies. Hiring a remote Java developer is a cost-effective way to gain access to a wide range of technical skills.

Gaper uses a perfect match mechanism to find the most compatible and talented Java developers and a Java architect ideal for organizations needing reliable developers. Gaper has developed a systematic and deliberate procedure for finding suitable placements for expert Java developers in various organizations and startups.

Gaper is more than just an innovative hiring platform; we ease the transition to the modern workforce for startups. Gaper will find you the best Java programmers after they have been extensively screened and vetted. Our Java developers are dedicated to staying on top of global trends while keeping the needs of specific regions in mind.

What does Gaper do for you?


Scale your team quickly and easily by selecting developers from our pool of 1200+ software developers across 100+ skills located worldwide.

Compatibility Matching

We take care of the tedious task of finding the right person for the job and ensuring they are successfully integrated with your organization’s goals and specifications.


In order to provide you with the top 1% of remote developers, we conduct thorough skill-based screenings of all applicants.

Smooth Int. Payments

We help businesses save time and money by streamlining international payments, billing transparency, and compliance.

Our remote talent solution is risk-free, so give it a try today!

  • Results within 48 hours.
  • Guaranteed high-quality matches.
  • Reduce your time spent hiring by 70%.

Benefits of choosing Gaper to Hire Java Developers

Java Solutions Developed Specifically For Your Needs

Gaper employs Java developers with top-tier expertise in the field to create reliable software tailored to your company’s specific requirements. We can recommend the best technology for your needs with our extensive knowledge in your area.

Exceptional Architecture

To ensure that your software can keep up with the changing demands of your business and market needs, our experts place a premium on long-term efficiency by focusing on micro-services and cloud-only architecture.

Flexible Communication

Our company is committed to keeping open lines of communication with our customers. A consistent connection between the parties is ensured by having a single point of contact at all times. In addition, we have discussions about the required information, our priorities, and the frequency of updates.


We stick to tried-and-true processes with full transparency into everyone’s roles, with defined objectives and timelines for all tasks. Furthermore, we encourage our customers to participate in the development process actively.


First things first: before you even think about hiring  Java developers, you have to figure out your products’ requirements. These specifications must be in sync with your company’s objectives to ensure that the final product lives up to your standards. Things like long-term goals, user requirements, specialized features, etc., should be considered as you develop your application.

Identifying the need for these Java applications and taking appropriate action is the first step in getting the development process rolling. However, this requires you to have a firm grasp of the current business needs. Because there is such a wide variety of Java applications from which to choose, it is essential to understand how they can be categorized according to your requirements.

There is a wide variety of industries, and each one has its own unique set of requirements. Therefore, it is recommended that businesses seek out a firm that can cater to the IT sector’s requirements and understand and appreciate the subtleties of business operations. As a result, when evaluating a company, remember to factor in all these variables.

If you’re looking to hire a Java development company, do your research first. In order to get the expected business results from your Java solutions, you need to specify your requirements and expectations upfront. It’s important to note that almost any business, regardless of size or industry, can use the expertise of a Java application development firm. Your startup can be one of them too.

Final Thoughts

Java developers have unmatched expertise and a set of essential skills. Most companies that use Java development are industry game-changers, so it stands to reason that hiring the best Java developers is a wise choice. In recent times, there has been an increase in overseas and remote job postings for Java developers. When companies have access to such teams, they can reduce management costs and speed up hiring employees based on their specific skill sets.

In recent years, offshore development has gained momentum and shows no signs of slowing down. Organizations that engage in outsourcing have grown stronger despite their challenges. In the same manner, like these companies, yours can succeed too.

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