There is a large community of Java developers in Vietnam. This article talks in detail in case you are thinking to hire Java developers in Vietnam.
Introduction to Java
Java is common in desktop, web and Android applications. It can also be found in embedded software, robotics and Big Data. As a result, Java is found everywhere, including huge platforms like Amazon, Ebay and Twitter.
The Java programming language has many strengths:
- Java is intended to be WORA (write once, run anywhere). This is achieved by compiling into an intermediate language called bytecode, which runs in the Java Virtual Machine (JVM). This allows applications written in Java to be platform-independent.
- This is a multi-paradigm programming language, that can support functional, procedural and object-oriented programming.
- Java is multi-threaded, allowing tasks to be completed simultaneously.
- It supports stack allocation of memory, providing another option to heap allocation. This has speed benefits.
- Java has security benefits, as it reduces the likelihood of mistakes that lead to security flaws.
Note that other languages will run in the Java Virtual Machine and it has been suggested that Java’s importance will decline. However, despite the emergence of Kotlin, Scala and others, Java remains a very popular programming language. Java frameworks, libraries and the ecosystem will remain well into the future.
What does a Java Developer do and know?
Java developers are responsible for the development and management of Java-based applications. Their responsibilities will be related to development, testing, deployment, maintenance and improvement. More experienced Java developers may also have input into architecture or project management.
Java developers should be strong in Java and several web frameworks (such as JSP, JSF, SpringMVC, Struts or Servlets). They’ll also have experience in DI frameworks like Spring, and ORM frameworks like Hibernate. They should be familiar with relational and non-relational databases. Related infrastructure technologies (such as ElasticSearch, Redis) are also important for effective searching, caching, logging and other functions. A range of DevOps tools are also useful.
Java Developers in Vietnam
Firstly, Java developers are abundant in Vietnam, with a similar level of availability as PHP, .NET and C/C# developers. There is a range of experience available from junior to senior developers.
Most Java developers in Vietnam have experience with later versions of Java, including J2EE / J2SE. Java Developers will generally have experience with IDEs such as Eclipse and NetBeans, and with frameworks such as Servlets and/or Spring. Most developers will have experience with web / applications servers like TomCat, Wildfly, WebSphere or WebLogic.
They’ll also have skills in database design and programming (including MySQL and SQL, or their alternatives), often extending to Object Relational Mapping tools like Hibernate.
Some Java developers will have experience with UI frameworks like SpringBoot. Senior profiles may also have experience with Docker, Jenkins, Maven, Selenium and other helpful tools for developers.
Java developers in Vietnam will generally have experience with GIT and/or SVN. They are also likely to have experience with Agile.
Hiring Java Developers in Vietnam
There are a range of considerations if you’re looking to build a hire a Java developer or a team of Java developers in Vietnam.
Salaries for Java Developers in Vietnam
Salaries for Java developers vary considerably based on experience. As a guide, consider that:
- A junior developer’s gross monthly salary range will rarely exceed $800 USD.
- The gross monthly salary range for a mid will rarely exceed $800 – $1,500 USD.
- A senior developer’s gross monthly salary range rarely exceed $1,300 – $2,500 USD.
However, salary expectations can be highly variable. Applicants will consider the attractiveness of the project or the company, the career progression opportunities, and the working location. A premium may be paid for high levels of English or value-adding capabilities like project management, team leadership or software architecture.
Sources of Applicants for Java Developer Roles
Interview Questions for Java Developers
In addition to technical coding questions, Java developers should be able to offer a response to the following range of questions:
- Tell me about yourself and your programming experience.
- How do you keep up with latest changes to web and software development?
- Tell me something about your favourite project, and why you liked it
- What would you change about your least successful project?
- Do you find any difficulties in programming?
- How do you test your code?
- What is your preferred development environment?
- Have you ever worked directly with clients?
- Have you ever lead a team?
- What are your strongest ‘soft’ skills’?
- Why did you leave your previous role and what do you want from this role?
Of course, you may not have time to ask all of these, so be selective and match the questions to the role and seniority of the specific developer. You should also consider the balance between closed (yes/no) and open questions (how/why).
Interview Questions Asked by Java Developers in Vietnam
Expect to answer some questions before to hire Java Developers in your company in Vietnam. Consider your responses to questions from a Java developer, such as:
- Tell me more about the company and the project.
- What are my responsibilities?
- Who will I report to?
- What tools and technologies does the team use?
- Is this team an Agile team?
- Who else is on the team?
- Where is your office located?
- What about salary and benefits?
- What about the career path? Is training offered?