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What does a junior java developer do?

Updated January 8, 2025
7 min read
Quoted expert
Frank McCown Ph.D.

A junior java developer is primarily responsible for working on codes and data as part of an application or software development process. They mostly perform tasks delegated by managers, maintain records of all data and documentation, perform tests and inspections, coordinate with fellow developers, and identify any errors or inconsistencies. A junior java developer may also liaise with other departments, produce progress reports, and reach the manager's goals. Furthermore, In a company setting, it is essential to learn and adhere to its policies and regulations, including its vision and mission.

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Junior java developer responsibilities

Here are examples of responsibilities from real junior java developer resumes:

  • Manage connectivity using JDBC for querying/inserting & data management including triggers and store procedures.
  • Design and develop UI with AJAX, HTML, XHTML, DHTML and java script for more interactive web pages.
  • Create user-friendly GUI interface and dynamic web pages using HTML, CSS and JSP for user access management service application.
  • Design and develop UI screens with JSP, JSTL, CSS in struts framework to provide interactive screens to display data.
  • Develop GUI for various screens using JSP, JSTL, and HTML code for various actions on the user.
  • Develop custom tags for JSP for maximum re-usability of user interface components.
  • Major duties include system architecture design using RUP, mentoring, architectural assessments, and Java application design/construction/testing.
  • Used JQUERY to handle the client side validations.
  • Used ant for developing build scripts and deploying the application on WebLogic.
  • Install, secure, and configure AWS cloud servers with Linux, MySQL.
  • Develop dynamic web pages using client side technologies using HTML5, CSS3, and JavaScript.
  • Develop JSP for client data presentation and, data validation on the client side with in the forms.
  • Create complex SQL queries, PL/SQL queries and store procedures to generate test records in the development database tables.
  • Design stored procedures and triggers using PL/SQL in order to calculate and update the tables to implement business logic.
  • Develop JSP, HTML5, XHTML, CSS3 pages for compact and modify views work on responsive web design.

Junior java developer skills and personality traits

We calculated that 20% of Junior Java Developers are proficient in Java, JavaScript, and Spring Boot. They’re also known for soft skills such as Customer-service skills, Creativity, and Detail oriented.

We break down the percentage of Junior Java Developers that have these skills listed on their resume here:

  • Java, 20%

    Implemented Java frameworks to generate back-end services.

  • JavaScript, 9%

    Used JavaScript to perform client side validations and Struts-Validator Framework for server-side validation.

  • Spring Boot, 5%

    Designed and developed the web based application using Spring MVC module and Spring Boot.

  • CSS, 4%

    Used different user interface technologies JSP, HTML, CSS, and JavaScript for developing the User Interface of the application.

  • HTML, 4%

    Designed and developed UI with AJAX, HTML, XHTML, DHTML and java script for more interactive web pages.

  • Web Application, 3%

    Project Management System is a highly interactive web application to improve organizations productivity by identifying bench resources and project status.

Most junior java developers use their skills in "java," "javascript," and "spring boot" to do their jobs. You can find more detail on essential junior java developer responsibilities here:

Customer-service skills. To carry out their duties, the most important skill for a junior java developer to have is customer-service skills. Their role and responsibilities require that "webmasters have to respond politely and correctly to user questions and requests." Junior java developers often use customer-service skills in their day-to-day job, as shown by this real resume: "used xml, xsl for data presentation, report generation and customer feedback documents. "

Creativity. Another essential skill to perform junior java developer duties is creativity. Junior java developers responsibilities require that "web developers often are involved in designing the appearance of a website and must make sure that it is appealing as well as functional." Junior java developers also use creativity in their role according to a real resume snippet: "inventory management system - shanghai, china building a web application for an inventory management system. "

Detail oriented. junior java developers are also known for detail oriented, which are critical to their duties. You can see how this skill relates to junior java developer responsibilities, because "web developers need to have an eye for detail, because a minor error in coding could cause an entire webpage to stop working." A junior java developer resume example shows how detail oriented is used in the workplace: "involved in the details designing of the modules according to the j2ee standards. "

All junior java developer skills

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Compare different junior java developers

Junior java developer vs. Java programmer

Java programmers design and develop programs with the goal of not taking up too much data and less to almost no latency that can be useful to their users every day. They aim to write testable, well designed, and efficient computer codes. Java developers need a range of skills, from a thorough knowledge of the basics to an understanding of the latest developments. Programmers also need knowledge beyond the java language itself. Their skills should include knowing how the development process works and how the apps function in which the code runs.

The annual salary of java programmers is $220 lower than the average salary of junior java developers.While the two careers have a salary gap, they share some of the same responsibilities. Employees in both junior java developer and java programmer positions are skilled in java, spring boot, and css.

These skill sets are where the common ground ends though. The responsibilities of a junior java developer are more likely to require skills like "javascript," "junit," "test cases," and "microservices." On the other hand, a job as a java programmer requires skills like "mvc," "application development," "scrum," and "unit test cases." As you can see, what employees do in each career varies considerably.

Java programmers earn the highest salaries when working in the finance industry, with an average yearly salary of $94,924. On the other hand, junior java developers are paid more in the finance industry with an average salary of $93,109.On average, java programmers reach higher levels of education than junior java developers. Java programmers are 10.7% more likely to earn a Master's Degree and 0.7% more likely to graduate with a Doctoral Degree.

Junior java developer vs. Software developer internship

A software developer intern is responsible for assisting the software engineers with the design implementation and shadowing their duties to understand the processes more efficiently. Software developer interns use their classroom knowledge on practical applications, suggesting recommendations on how to make the project successful. They also respond to clients' inquiries and concerns, attend meetings, and help with maintaining complex systems and networks. A software developer intern must have excellent communication skills, as well as having strong attention to detail and the ability to learn fast.

Software developer internship positions earn lower pay than junior java developer roles. They earn a $42,068 lower salary than junior java developers per year.Only some things about these jobs are the same. Take their skills, for example. Junior java developers and software developer interns both require similar skills like "java," "javascript," and "spring boot" to carry out their responsibilities.

While some skills are similar in these professions, other skills aren't so similar. For example, resumes show us that junior java developer responsibilities requires skills like "eclipse," "junit," "api," and "design patterns." But a software developer internship might use other skills in their typical duties, such as, "python," "software development," "aws," and "data analysis."

Software developer interns may earn a lower salary than junior java developers, but software developer interns earn the most pay in the finance industry with an average salary of $41,281. On the other hand, junior java developers receive higher pay in the finance industry, where they earn an average salary of $93,109.software developer interns earn higher levels of education than junior java developers in general. They're 8.6% more likely to graduate with a Master's Degree and 0.7% more likely to earn a Doctoral Degree.

What technology do you think will become more important and prevalent for junior java developers in the next 3-5 years?

Frank McCown Ph.D.Frank McCown Ph.D. LinkedIn profile

Associate Professor, Harding University

Software continues to move to mobile devices and the web and away from desktop applications. The pandemic has encouraged growth in applications that make in-person transactions go away, and that trend will likely continue. Obviously AI-enabled or assisted applications will continue to grow.

Junior java developer vs. Web application developer

A web application developer is responsible for designing website and system applications following clients' specifications and business' needs. Web application developers utilize their expertise in programming languages and system codes, ensuring the efficiency and smooth navigation of the website. They also run multiple diagnostic tests on the output before release, identifying inconsistencies, and addressing incompatibilities on browsers and devices. A web application developer should be detail-oriented and highly-technical as this job requires excellent digital knowledge to manage complex systems.

On average, web application developers earn higher salaries than junior java developers, with a $5,292 difference per year.junior java developers and web application developers both have job responsibilities that require similar skill sets. These similarities include skills such as "java," "javascript," and "spring boot," but they differ when it comes to other required skills.

The required skills of the two careers differ considerably. For example, junior java developers are more likely to have skills like "maven," "design patterns," "jboss," and "sql server." But a web application developer is more likely to have skills like "database," "python," "git," and "application development."

Web application developers earn the best pay in the finance industry, where they command an average salary of $88,928. Junior java developers earn the highest pay from the finance industry, with an average salary of $93,109.Most web application developers achieve a similar degree level compared to junior java developers. For example, they're 3.3% more likely to graduate with a Master's Degree, and 0.6% more likely to earn a Doctoral Degree.

Junior java developer vs. Sharepoint developer

A Sharepoint developer is responsible for designing Sharepoint servers, implementing strategic procedures to improve operational functions and business activities. Sharepoint developers work closely with the clients' for their specifications, analyzing their content requirements, and recommending solutions according to their budget goals and set timeframe. They also run multiple diagnostic tests and configuration to the website, ensuring its efficiency, accuracy, and smooth navigation for users. A Sharepoint developer must have excellent knowledge of utilizing various software tools and programs, including programming language and system codes, creating interfaces, resolving system glitches, and debugging codes.

Sharepoint developers average a higher salary than the annual salary of junior java developers. The difference is about $14,500 per year.While their salaries may vary, junior java developers and sharepoint developers both use similar skills to perform their duties. Resumes from both professions include skills like "java," "javascript," and "css. "

Even though a few skill sets overlap between junior java developers and sharepoint developers, there are some differences that are important to note. For one, a junior java developer might have more use for skills like "spring boot," "eclipse," "jsp," and "junit." Meanwhile, some responsibilities of sharepoint developers require skills like "visual studio," "powershell," "custom workflows," and "infopath forms. "

In general, sharepoint developers earn the most working in the pharmaceutical industry, with an average salary of $100,053. The highest-paying industry for a junior java developer is the finance industry.sharepoint developers reach higher levels of education compared to junior java developers, in general. The difference is that they're 5.5% more likely to earn a Master's Degree, and 0.5% more likely to graduate with a Doctoral Degree.

Types of junior java developer

Updated January 8, 2025

Zippia Research Team
Zippia Team

Editorial Staff

The Zippia Research Team has spent countless hours reviewing resumes, job postings, and government data to determine what goes into getting a job in each phase of life. Professional writers and data scientists comprise the Zippia Research Team.

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