Junior JavaScript Developer Job Description [Updated for 2025]

In the digital era, the focus on Junior JavaScript Developers is growing stronger.

As technology continues to evolve, the demand for proficient individuals, adept at crafting, improving, and securing our digital infrastructure, becomes more prominent.

But let’s delve deeper: What’s really expected from a Junior JavaScript Developer?

Whether you are:

• A job seeker attempting to understand the core of this role,
• A hiring manager outlining the perfect candidate,
• Or simply fascinated by the dynamics of JavaScript development,

You’re in the right place.

Today, we present a flexible Junior JavaScript Developer job description template, designed for effortless posting on job boards or career websites.

Let’s dive right into it.

Junior JavaScript Developer Duties and Responsibilities

Junior JavaScript Developers are responsible for assisting the software development team, using their knowledge of JavaScript and related software development tools to create, enhance, and maintain JavaScript applications.

Their primary aim is to ensure that the application is designed and coded correctly to function as intended.

They have the following duties and responsibilities:

• Assist in the design and creation of web applications using JavaScript and other programming languages
• Perform coding tasks to enhance website functionality and improve user experience
• Test and debug JavaScript applications to ensure their smooth performance
• Assist in identifying and fixing software bugs to maintain the functionality and reliability of applications
• Collaborate with other developers and designers to integrate user-facing elements with server-side logic
• Implement responsive design principles to ensure the application functions well on different devices and platforms
• Keep up to date with the latest industry trends and technologies to ensure the use of best practices during development
• Document all aspects of an application for future reference and maintain detailed reports on the status of the project

 

Junior JavaScript Developer Job Description Template

Job Brief

We are searching for a talented Junior JavaScript Developer to join our dynamic software development team.

The primary responsibilities include designing and implementing new programs and features, maintaining existing systems, developing mobile applications, and offering technical support where necessary.

Our ideal candidates are familiar with the full software development life cycle (SDLC) from preliminary system analysis to tests and deployment.

This role requires solid technical skills, as well as excellent interpersonal and communication abilities.

 

Responsibilities

• Participate in the entire application lifecycle, focusing on coding and debugging.
• Write well-designed, efficient code using JavaScript programming language.
• Design user-friendly, responsive web pages.
• Develop and maintain mobile applications.
• Debug applications to ensure optimal performance and quality.
• Perform validation and verification testing.
• Collaborate with front-end and back-end developers to integrate user-facing elements with server-side logic.
• Gain feedback from users and customers, and adjust applications as necessary.
• Stay up-to-date on emerging technologies.

 

Qualifications

• Proven experience as a JavaScript Developer or similar role.
• Familiarity with JavaScript frameworks such as Angular JS, React and Amber.
• Proficient understanding of web markup, including HTML5, CSS3.
• Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS.
• Understanding of asynchronous request handling, partial page updates, and AJAX.
• Basic knowledge of image authoring tools.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• BS degree in Computer Science or relevant field.

 

Benefits

• 401(k)
• Health insurance
• Dental insurance
• Retirement plan
• Paid time off
• Professional development opportunities

 

Additional Information

• Job Title: Junior JavaScript Developer
• Work Environment: Office setting with options for remote work. Some travel may be required for team meetings or client consultations.
• Reporting Structure: Reports to the Lead JavaScript Developer or Software Development Manager.
• Salary: Salary is based upon candidate experience and qualifications, as well as market and business considerations.
• Pay Range: $65,000 minimum to $110,000 maximum
• Location: [City, State] (specify the location or indicate if remote)
• Employment Type: Full-time
• Equal Opportunity Statement: We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
• Application Instructions: Please submit your resume and a cover letter outlining your qualifications and experience to [email address or application portal].

 

What Does a Junior JavaScript Developer Do?

A Junior JavaScript Developer is typically an entry-level position in the field of web development.

They work under the supervision of senior developers or as part of a team.

Their primary role involves designing, implementing, and testing web applications using JavaScript, a popular programming language.

They utilize JavaScript to add dynamic elements and interactive features to websites and applications, enhancing user experience.

Junior JavaScript Developers may also work with various frameworks and libraries such as React.js, Angular.js, or Node.js, to simplify and speed up their coding process.

They are responsible for debugging and resolving issues in the existing code base.

They often collaborate with other team members to integrate different parts of a project.

They might also be involved in creating user interface components and integrating them with backend logic, or working with databases.

Continuous learning and staying updated with the latest trends and updates in JavaScript and related technologies is an important part of their job.

Junior JavaScript Developers may also participate in code reviews, where they analyze and critique the code of their colleagues to ensure it meets the required standards and best practices.

They also learn from feedback on their own code.

They are often responsible for testing the functionality of their code, ensuring it works as expected and fixing any issues that arise during testing.

This process often involves using automated testing tools and frameworks.

 

Junior JavaScript Developer Qualifications and Skills

Junior JavaScript Developers utilize a blend of technical knowledge, problem-solving abilities and communication skills to create and maintain web applications, including:

• Knowledge of JavaScript and its frameworks such as AngularJS, React, Node.js etc., to efficiently develop and maintain web applications.
• Understanding of web mark-up, including HTML5 and CSS3 for creating user-friendly web pages.
• Proficiency in asynchronous request handling, partial page updates, and AJAX to create dynamic and interactive web applications.
• Ability to use problem-solving skills to identify, debug and propose solutions for programming issues.
• Strong communication skills for collaborating with team members, explaining complex ideas to non-technical team members, and documenting project progress.
• Knowledge of code versioning tools, such as Git, to track and control changes in the source code.
• Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS.
• Knowledge of cross-browser compatibility issues and ways to work around them.
• Being able to effectively manage time and prioritize tasks to meet project deadlines.

 

Junior JavaScript Developer Experience Requirements

Junior JavaScript Developers are typically entry-level professionals who may have up to 2 years of experience in web development.

This experience may be acquired through internships, part-time jobs, or coding bootcamps where they have gained practical knowledge of JavaScript and other relevant technologies.

These professionals often have foundational knowledge of web development, including HTML, CSS, and of course, JavaScript.

They may also have some experience with JavaScript frameworks such as React.js, AngularJS or Vue.js.

Candidates may also gain experience by contributing to open-source projects or developing their own web applications.

Some Junior JavaScript Developers might have experience with backend development using Node.js, or databases like MongoDB, which can be beneficial for full-stack development roles.

Junior JavaScript Developers with more than 2 years of experience may have some experience in team projects and could be ready to transition into a mid-level developer role.

They may also have some experience in agile development environments or have worked with version control systems like Git.

 

Junior JavaScript Developer Education and Training Requirements

Junior JavaScript Developers typically have a bachelor’s degree in computer science, software engineering, or a related field.

They need a solid understanding of JavaScript, including its quirks and workarounds.

Familiarity with other web technologies such as HTML5 and CSS3 is also a prerequisite.

As the role involves dealing with the basics of web application development, knowledge of web markup, including HTML5 and CSS3, is essential.

Additionally, understanding of server-side CSS pre-processing platforms, such as LESS and SASS, is advantageous.

Many employers prefer candidates who have experience working on JavaScript development projects, which can be gained through internships, coding bootcamps, or personal projects.

Junior JavaScript Developers are also expected to understand the principles of secure and performant coding and have knowledge of front-end build tools, such as Grunt and Gulp.js.

While not a requirement, some Junior JavaScript Developers may pursue advanced certifications or a master’s degree in a specific IT or software engineering discipline.

These qualifications can demonstrate a commitment to the profession and may open up opportunities for advancement.

Continuing education is important in this role, as new JavaScript frameworks and libraries are constantly being released.

Junior JavaScript Developers need to stay up-to-date with the latest technologies and best practices in order to remain competitive.

 

Junior JavaScript Developer Salary Expectations

A Junior JavaScript Developer can expect to earn an average salary of $66,130 (USD) per year.

The actual income can greatly differ based on factors such as geographical location, the company’s size and industry, and the individual’s level of skill and experience in JavaScript development.

 

Junior JavaScript Developer Job Description FAQs

What skills does a Junior JavaScript Developer need?

A Junior JavaScript Developer should have a good understanding of JavaScript and its frameworks, like AngularJS, ReactJS, or VueJS.

They should have basic knowledge of web markup, including HTML5 and CSS3.

They must also be familiar with asynchronous request handling, partial page updates, and AJAX.

Understanding of cross-browser compatibility issues and ways to work around such issues is also desirable.

 

Do Junior JavaScript Developers need a degree?

Most Junior JavaScript Developers hold a degree in Computer Science, Information Technology or a related field, but it’s not strictly necessary.

What’s more important is a strong understanding of JavaScript and its frameworks, which can also be gained through self-study or coding bootcamps.

 

What should you look for in a Junior JavaScript Developer resume?

A Junior JavaScript Developer’s resume should demonstrate knowledge and some experience in JavaScript and its frameworks, as well as HTML5, CSS3, and AJAX.

Look for projects or internships that required these skills.

They should have problem-solving skills and a passion for programming.

Certifications in JavaScript could also be a plus.

 

What qualities make a good Junior JavaScript Developer?

A good Junior JavaScript Developer is eager to learn and can quickly adapt to new programming languages and technologies.

They have good problem-solving abilities and attention to detail, which are essential for coding and debugging.

They should also be able to communicate effectively with team members and, at times, with clients or end-users.

 

What is the career path for a Junior JavaScript Developer?

A Junior JavaScript Developer can grow into a mid-level and then a senior developer role with experience and continued learning.

They may also choose to specialize in a particular area such as full-stack development, back-end development, or front-end development.

Some may eventually move into managerial roles like team lead or project manager, while others may opt for roles like software architect or consultant.

 

Conclusion

And that’s a wrap!

Today, we’ve shed some light on the true essence of being a junior JavaScript developer.

Surprise, surprise!

It’s not just about writing scripts.

It’s about shaping the future of web development, one JavaScript function at a time.

Armed with our handy junior JavaScript developer job description template and real-life examples, you’re ready to embark on your career journey.

But don’t just stop there!

Delve deeper with our job description generator. Consider it your secret weapon to crafting detailed job listings or sharpening your resume to perfection.

Keep this in mind:

Every JavaScript function contributes to a larger, more interactive web experience.

Let’s script that future. Together.

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