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React Js Developer Jobs in Pennsylvania (NOW HIRING)

Tata Consultancy Service Limited

Engineer

Pittsburgh, PA · On-site

$100K - $115K/yr

React JS Developer Must Have Technical/Functional Skills: * 8+ years of professional experience in front-end development. * Develop User Interfaces: Build and implement highly responsive user ...

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 ...

RIT Solutions, Inc.

Senior Frontend Engineer

Malvern, PA · On-site

$120K - $165K/yr

RIT Solutions, Inc. is seeking a Senior Frontend Engineer with strong UI expertise and hands-on experience in building modern, scalable applications using React.js, Preact, and JavaScript/TypeScript.

Sarian, Inc.

SharePoint Developer

King Of Prussia, PA · On-site

$48.75 - $63.75/hr

SharePoint Developer Location: King Of Prussia, PA Onsite position Fulltime position JD Skill ... React.JS Model. * Strong Experience with creating Out of Box SharePoint Online Modern Webparts ...

Winaxis

Data Visualization Lead

Philadelphia, PA · On-site

Proficiency in React.js, Deck.gl, JavaScript, HTML/CSS, SQL; experience leading engineering projects/teams; experience with large datasets and APIs; familiarity with geospatial data formats ...

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React Js Developer information

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$42.6K

$110.7K

$155.9K

How much do react js developer jobs pay per year?

As of Aug 7, 2026, the average yearly pay for react js developer in Pennsylvania is $110,678.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,200.00 and $121,300.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a React JS developer?

To thrive as a React JS Developer, you need a strong grasp of JavaScript, HTML, CSS, and modern React concepts such as hooks, state management, and component lifecycle, typically supported by a degree in computer science or relevant experience. Familiarity with version control systems like Git, build tools such as Webpack or Babel, and testing frameworks like Jest is commonly required. Problem-solving, effective communication, and teamwork are crucial soft skills that distinguish successful developers in this role. These abilities ensure efficient development of scalable, maintainable applications and smooth collaboration within cross-functional development teams.

What is the difference between React Js Developer vs Front-End Developer?

AspectReact Js DeveloperFront-End Developer
Required SkillsProficiency in React.js, JavaScript, HTML, CSSHTML, CSS, JavaScript, frameworks like Angular or Vue
Work EnvironmentFocus on building user interfaces with ReactDeveloping and maintaining websites/apps across various frameworks
Industry UsageCommon in companies using React for UI developmentBroader role across multiple front-end technologies

React Js Developers specialize in building user interfaces using React.js, while Front-End Developers work across various frameworks and technologies to create complete website or app front-ends. React Js Developers focus more on React-specific skills, whereas Front-End Developers have a broader skill set applicable to multiple frameworks.

What is a React JS developer?

A React JS Developer is a software engineer who specializes in building user interfaces and web applications using the React JavaScript library. They are responsible for developing reusable components, managing application state, and ensuring high-performance, responsive designs. React JS Developers often work closely with designers and backend developers to deliver seamless user experiences. Their expertise includes JavaScript, HTML, CSS, and modern front-end development tools.

What are some common challenges faced by React JS developers when integrating with backend APIs?

React JS Developers often encounter challenges such as managing asynchronous data flows, handling errors gracefully, and ensuring smooth communication between the frontend and backend services. Debugging issues related to inconsistent API responses or cross-origin resource sharing (CORS) can also be common. Staying up-to-date with evolving RESTful or GraphQL API standards and ensuring secure authentication and data validation are essential for successful integration.
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React Js Developer jobs near you
Infographic showing various React Js Developer job openings in Pennsylvania as of August 2026, with employment types broken down into 77% Full Time, 8% Part Time, and 15% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $110,678 per year, or $53.2 per hour.

React.js / Svelte Engineer - Remote Job

EnthuZiastic

Reading, PA • Remote

Full-time

Re-posted 16 days ago

Job description

About Us

Our mission is to bring people together and connect them into a community to nurture each other. We aim to share a conducive environment, a joyous space to grow and excel; a world brimming with selfless love and enough kindness. We strive to enrich each of our lives with kaleidoscopic memories we make here - vibrant, lively, of all hues and colors.

Job Description

This is a remote position.

We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.

Responsibilities:

  • Developing new user-facing features using React.js

  • Building reusable components and front-end libraries for future use

  • Translating designs and wireframes into high quality code

  • Optimizing components for maximum performance across a vast array of web-capable devices and browsers

Our Tech Stack:

  • Svelte.js

  • React.js

  • Jest.js (Testing)

  • Tailwind

  • Typescript

  • GraphQL

  • Flutter

  • Terraform

  • Elixir / Node.js

  • AWS / Azure Cloud

Requirements

  • 2+ years of experience in React / Angular / Web Frameworks, Jest (unit testing).

  • Having GraphQL experience is a big plus.

  • Having Svelte experience is a big plus.

  • An excellent team player.

  • Constantly thinking about improving the current code, usability, user experience. Having laser focus on making the app super amazing and helping the team and company succeed.

  • Excellent communication and interpersonal skills. In the new world of work from home, we expect the ideal candidate to over-communicate.

  • Humility, collaboration, time management, and communication are as important as your technical skills.

  • Analytical thinker with exceptional problem-solving skills.

  • Excited about writing quality code, trying new technologies, and playing well with others.

  • Solid understanding of engineering and design best practices, especially as it relates to scaling high traffic and data heavy applications.

  • Previous experience with designing, building, and scaling an application to support load changes related to growth.

  • Comfortable in dealing with complexity, lots of moving pieces, coordinating with third parties, and cross-functional teams.

  • Exquisite attention to detail, ability to identify and solve edge-cases.

  • Comfortable learning new technologies and systems.

Do Not Apply If:

  • If you haven’t used Git yet.

  • You are not comfortable with startups that move fast! We’re a small group (~40) of passionate individuals who are determined to change the status quo!

Benefits

  • Opportunity to be a part of a dynamic growth focused tech startup

  • Great learning opportunities to develop new skills and understanding of cutting edge software tools and processes

  • Opportunity to work closely with serial tech entrepreneurs from Silicon Valley

  • Fun-loving environment and caring team mates and inclusive culture of the company

Apply