Mastering Java: Key Senior Java Backend Developer Skills

A senior Java developer should have very good technical skills in Java, Spring Boot, databases, web applications, and web services. He should have experience in using development tools such as Maven, Git, and Eclipse, and testing frameworks like JUnit and HTML. He must also be experienced in Scrum and Jenkins, as these enable continuous integration and deployment.

Below is the list of the most critical senior Java backend developer skills. We ranked the top senior Java backend developer skills based on the percentage of resumes they appeared on. Do continue reading to know what the essential senior Java backend developer skills are to be successful in work.

1. Java

Java is a programming language used for creating computer programs. Senior Java applications involve business logic, CMS, and web services. Java further extends its use for user interfaces, database interactions, and handling enormous data.

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Senior Java developers apply Java as follows:

  • Developed common client validation framework using common validation framework, JavaScript.
  • Design and develop a Java-based Content Management Contingency Framework with the incorporation of Spring Boot.

2. Spring Boot

Spring Boot is one of the popular web application development frameworks. Using it, senior Java Developers avoid boilerplate configuration as much as possible, providing an application that will mostly leverage convention over configuration; for security and externalized configuration, they make use of it.

It does implement batch configurations and also interacts with other services via REST and message brokers. They implement cross-cutting concerns by business transactions, security, and logging.

Here's how leading Java developers use Spring Boot:

  • They reduced boilerplate configuration when using Spring Boot as it has support for embedded Tomcat along with dependency management.

  • Configured applications using Spring Boot, and also used Spring Security for authentication and authorization purposes.

3. Database

Databases are a collection of data; a computer can access databases quickly. Senior Java developers use databases to store or retrieve data.

They actually design and create database objects such as tables, views, and stored procedures and often use Hibernate to interact with the database to map it to a relational database to update data in the data access layer using Spring-Hibernate-JPA.

Here is how senior Java developers use databases:

  • Used Hibernate Annotation Configuration to achieve database connectivity.
  • Developed a 3-tier architecture that met the client requirements and segregated database, business, and client logic.

4. Web Application

A web application is a software application that works with a web browser for interaction with users. Different ways of using web applications include designing and developing, automating, and deploying.

Senior Java Developers will also use web applications to exchange information between different agencies and build single-page, cross-browser-compatible applications. An example is using Spring MVC to develop a web application and injecting dependencies using Spring Auto Wiring Modes.

Here is how senior Java developers use web applications:

  • Project Description: It is a web application using which business customers can surf through and order online communication products and services of business customers.
  • Designed and developed a web application to achieve the exchange of information in different agencies using Spring framework and Web Services MVC.

5. MVC

Model-view-controller is a technique in which application architecting is done. The senior Java developers base the writing of user interfaces on configuration settings, updated files, and integrated business logic.

They design and generate JSP pages, implement navigation, and set up controllers using Spring MVC annotations. They too apply MVC to write applications and integrate the same with other technologies like DAO layers, Node JS, and Angular JS.

Here's how the senior Java developers made use of MVC:

  • Designed and developed generated JSP pages based on Struts MVC architecture and updated configuration settings in configuration files.
  • Implemented navigation using Spring MVC controllers, and configured controllers through Spring MVC annotations and configuration files.

6. Maven

Maven is the one development tool that provides the ideal environment for building, managing, and deploying software applications.

The senior Java programmers use Maven to automatically carry out the building and deploying application artefacts by engaging in their activities such as building, deploying, and troubleshooting. They create and then customise build scripts alongside implementing logging mechanisms.

In addition, they make use of Maven tools for continuous integration and automation build tools, manage dependencies of the project, and deploy the whole project to application servers.

Here is how senior Java developers utilize Maven:

  • Configured Maven configurations for automated build and application artefact deployment.
  • Developed build scripts and performed build/deploy/troubleshoot activities using Maven.