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Junior React Js Developer Jobs in Philadelphia, PA

innovitusa

React js Developer

Philadelphia, PA

$104K - $122K/yr

USC,L2EAD,H4EAD This position is only for W2 Candidates Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model Thorough understanding of React.js and its core ...

Anagh Technologies, Inc.

Sr. React Engineer

Philadelphia, PA · On-site

$131K - $163K/yr

Job Profile: Sr. ReactJS Developer Work Location: Remote until end of Year / West Chester, PA ... Develop all day, every day with a focus in React.js, redux other JavaScript frameworks Create code ...

Sarian, Inc.

.NET+ Java Developer

Pennington, NJ · On-site

$51.50 - $66.50/hr

Handlebar, AngularJS, VUE JS, React JS * Responsive web design and WebSphere application server experience helpful * JSON, JSONP, XML/XSL, Web-services * Fiddler, Firebug, Poster, IE Developer Tools ...

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Junior React Js Developer information

See Philadelphia, PA salary details

$24.2K

$89.8K

$138.8K

How much do junior react js developer jobs pay per year?

As of Sep 6, 2026, the average yearly pay for junior react js developer in Philadelphia, PA is $89,784.00, according to ZipRecruiter salary data. Most workers in this role earn between $67,600.00 and $87,800.00 per year, depending on experience, location, and employer.

What is a junior React JS developer?

A Junior React.js Developer is an entry-level front-end developer who specializes in building user interfaces using React.js. They work with JavaScript, HTML, and CSS to create dynamic web applications, often under the supervision of senior developers. Their responsibilities include writing reusable components, managing state using React hooks or context, and integrating APIs. They also collaborate with designers and backend developers to ensure seamless functionality. Strong problem-solving skills and a willingness to learn are essential for growth in this role.

What does a junior React JS developer do?

A Junior React Js Developer usually works on building and maintaining user interfaces for web applications, implementing components based on design specifications, and fixing bugs under the guidance of more experienced developers. You may also assist with integrating APIs, writing unit tests, and participating in code reviews. Daily responsibilities often include collaborating with designers, backend developers, and QA teams to ensure features are functional and visually consistent. The role provides excellent learning opportunities as you receive mentorship and gain exposure to real-world codebases and agile development processes.

What skills and qualifications does a junior React JS developer need?

To thrive as a Junior React Js Developer, you need a solid understanding of JavaScript, React fundamentals, HTML, and CSS, often supported by a computer science degree or relevant coursework. Familiarity with version control systems like Git, basic testing tools, and development environments such as Visual Studio Code is essential. Strong problem-solving, communication, and willingness to learn from feedback are valuable soft skills in this role. These abilities enable developers to build effective user interfaces, collaborate efficiently with teams, and adapt quickly to evolving project requirements.

What are the most commonly searched types of React Js Developer jobs in Philadelphia, PA?

The most popular types of React Js Developer jobs in Philadelphia, PA are:

What are popular job titles related to Junior React Js Developer jobs in Philadelphia, PA?

For Junior React Js Developer jobs in Philadelphia, PA, the most frequently searched job titles are:

What job categories do people searching Junior React Js Developer jobs in Philadelphia, PA look for?

The top searched job categories for Junior React Js Developer jobs in Philadelphia, PA are:

What cities near Philadelphia, PA are hiring for Junior React Js Developer jobs?

Cities near Philadelphia, PA with the most Junior React Js Developer job openings:

Junior React Js Developer jobs near you
Infographic showing various Junior React Js Developer job openings in Philadelphia, PA as of August 2026, with employment types broken down into 100% Contract. Highlights an 100% Remote job distribution, with an average salary of $89,784 per year, or $43.2 per hour.

React js Developer

innovitusa

Philadelphia, PA

$104K - $122K/yr

Contractor

Re-posted 24 days ago

Job description

W2 – Only

VISA : USC,L2EAD,H4EAD

This position is only for W2 Candidates

Job Description

Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

 Thorough understanding of React.js and its core principles

 Experience with popular React.js workflows (such as Flux or Redux)

 Familiarity with newer specifications of ECMAScript

 Experience with data structure libraries (e.g., Immutable.js)

 Knowledge of isomorphic React is a plus

 Familiarity with RESTful APIs

 Knowledge of modern authorization mechanisms, such as JSON Web Token

 Familiarity with modern front-end build pipelines and tools

 Experience with common front-end development tools such as Babel, Webpack, NPM, etc.

 Ability to understand business requirements and translate them into technical requirements

 A knack for benchmarking and optimization

 Familiarity with code versioning tools {{such as Git, SVN, and Mercurial}}