Java is a high-level, general-purpose, memory-safe, object-oriented programming language that provides a robust framework for web development, allowing developers to create dynamic, scalable, and maintainable applications.
Java is commonly used for developing web applications, enterprise software, mobile apps, and embedded systems.
Java is a popular, object-oriented programming language and computing platform developed by Oracle in 1995, known for its “write once, run anywhere” capability. It offers a wide range of features, including automatic memory management, strong type-checking, and support for object-oriented programming principles.
Java is used for a vast array of applications, including mobile applications, enterprise software, web applications, and Internet of Things (IoT) devices.
Developers choose to use Java because it is a robust, secure, and platform-independent language ideal for enterprise-grade applications. As an object-oriented language, Java makes it easy to create reusable code and modular programs, contributing to the rapid pace of development and shorter time to market (TTM) it offers.
Java also boasts a vast ecosystem of frameworks and tools to boost developer efficiency, and an active community of users and contributors.
To get a better sense of Java’s versatility, consider these famous applications:
As the 4th most popular programming language in 2025 according to the TIOBE Programming Community Index, Java boasts numerous benefits and strengths for developers and companies alike. Due to its adaptability and varied modules, developers can easily use Java to create various apps, sites, and other projects.
The benefits of Java include:
Java developers will often hold a degree in computer science or similar, though this is not essential. When hiring a Java developer, it’s most important to look for strong experience in Java development.
There are also many certifications and qualifications that a Java developer may have. Popular certifications include:
Beyond technical skills, soft skills are vital when choosing your Java developer. Problem-solving is crucial, aiding with troubleshooting and continuous learning. Communication is also essential when looking for any new team member, particularly in facilitating clear and open communication between technical and non-technical stakeholders.
There are many programming languages that are helpful to know and use alongside Java, including:
Java is well-known for its active community and vast array of helpful libraries. Some of the most popular Java libraries include:
Frameworks are collections of reusable code, templates and tools that provide a foundational structure for building applications effectively and efficiently. Some of the most popular Java frameworks include:
There are many tools available to enhance the experience of using Java. Some of the most popular tools include:
Java developers are specialized programmers who use the Java language to create, test, and release applications. They are responsible for coding, testing, and planning Java-based projects, then translating user requirements into project objectives. They closely collaborate with user interface designers and project managers, translating stakeholder and client requirements into code.
When hiring traditionally in the US for a local, mid-level Ruby developer, the average annual compensation is $145,478/year according to Built In. However, even by just expanding to other parts of the United States, salaries can be reduced significantly.
On average, companies hiring Java developers with HireDevelopers can expect to save between 50% and 80% on salaries and hiring costs, with exact salaries varying based on location and experience. The greatest savings can be found by hiring in Africa and Asia, while companies looking for aligned time zones and a closer cultural match can hire from our extensive pool of Latin American developers.
Developers use Java for backend development because of its scalability, efficient memory management and platform-independence. In particular, developers tend to use lightweight frameworks like Spring Boot and frameworks like Hibernate to create and manage the back-end in Java.
Java can also handle all low-level relational database operations, reducing the workload for developers.
Java and Ruby are both great choices for web development that appeal to different types of developers and projects. Ruby is great for fast-moving projects focused on productivity and speed, often within startups and MVPs, whereas Java is considered better for performance, particularly at enterprise level.
Java and C++ are similar in their type, applications and complexity. Java and C++ can both be used to create applications, web browsers and websites. They also have a similar, English-derived syntax.
The four pillars of Java are Encapsulation, Inheritance, Polymorphism, and Abstraction. These principles make up the foundation of its object-oriented programming paradigm, providing a robust framework for creating modular, reusable and maintainable code.
In Java, there are 68 reserved keywords with predefined meanings. Some of the most important keywords in Java are:
Java has two data types: primitive and reference (also known as non-primitive). Primitive data types include byte, short, int, long, float, double, boolean and char. Reference data types include string, wrappers, arrays and classes.
It can be hard to find great Java developers due to the high demand for Java engineers in the United States. The TIOBE Programming Community Index ranks Java as the 4th most popular programming language for 2025, and Java won Programming Language of the Year in 2015.
If you’re struggling to find elite Java developers, try HireDevelopers today to tap into our vast network of pre-vetted, remote Java developers in just 24 hours.
The first step to hiring a Java developer is to decide on a hiring method. Traditional hiring methods include local job adverts, LinkedIn job posts and using your professional network to identify potential candidates.
However, these methods are often time consuming and can be expensive. The median time to hire a developer is around 41 days, with the slowest 10% taking up to 82 days and 38% of companies reporting project delays due to recruitment problems, according to the Linux Foundation’s 2024 State of Tech Talent Report.
Alternatively, many companies are now turning to services like HireDevelopers to cut costs and speed up the hiring process. With HireDevelopers, you can hire Java developers from anywhere in the world, at any price point, in just 24 hours.
When putting together a job description or job interview for a Java developer, prioritize technical skills, like familiarity with key frameworks such as Spring Boot.
You should also consider using coding challenges alongside a traditional interview during the hiring process – if you’re using a pre-vetted talent pool like HireDevelopers, this has already been done for you. Coding challenges allow you to assess problem-solving skills and coding expertise in a realistic, real-time environment.
If you need help putting together a Java job description or conducting a Java job interview, you can check out our helpful and comprehensive guides below. Alternatively, to cut your time-to-hire by 90% and unlock savings of up to 80%, get in touch and book your free HireDevelopers consultation today.
Hiring the right Java developer for your team is a huge undertaking, and the process can be intimidating, especially for startups and small businesses.
At HireDevelopers, our pre-vetted, global tech talent marketplace streamlines your hiring journey and cuts time-to-hire by over 90% without compromising on quality or stretching your budget. Receive a custom shortlist of top Java developers at any seniority level, at any price point and located anywhere in the world within just 24 hours of your consultation.
Plus, we’ll handle all payroll, legal compliance and HR completely for free, giving you more time to start building with your new Java dev.
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