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Javascript Engineer Jobs in Philadelphia, PA (NOW HIRING)

RIT Solutions, Inc.

Expert SRE UI Engineer

Malvern, PA · On-site

$56 - $74.25/hr

The role involves leading SRE initiatives, architecting resiliency solutions, and integrating AI ... Required : • Expert-level proficiency in JavaScript, spanning both client-side and server-side ...

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.

Scout ET

Sr. .NET Developer

Wilmington, DE

$53 - $69.75/hr

... PL/SQL, JavaScript and HTML. Oracle is a Must. AngularJS, WebAPI, and Entity Framework with LINQ Working with a cross functional development team to engineer deliverables and quality software ...

Agilent

Adobe Target Lead Engineer

Wilmington, DE · On-site +1

$116K - $182K/yr

Join Agilent's multifaceted eCommerce engineering team as a Lead Engineer specializing in Adobe ... Code and implement user experiences using HTML, CSS, and JavaScript. * Analyze test results and ...

ISite Technologies Inc

Principal SDET

Trenton, NJ · On-site

... JavaScript/TypeScript, or Python. • Experience with API automation, CI/CD, and end-to-end testing. • Provide technical leadership, code reviews, mentoring, and automation best practices.

New

langan

Environmental Systems Engineer

Warrington, PA · On-site +1

Langan provides expert land development engineering and environmental consulting services for major ... Knowledge of HTML5 and JavaScript front-end frameworks such as Angular or React; * Awareness of ...

Arka Infotech Inc

UI Developer

Wilmington, DE · On-site

$48.50 - $63/hr

UI Developer Location: Wilmington, DE Length: 2 years F2F REQUIRED Locals only Work Samples and URL ... Requirements: -1+ years of Angular.js, Node.js or other JavaScript MVC -1+ years of Responsive Web ...

RELX Group plc

Quality Engineer II

Philadelphia, PA · On-site

$71K - $119K/yr

Are you an automated Quality Test Engineer looking to use your skills testing skills to drive ... Strong proficiency in JavaScript/TypeScript with hands-on experience building and maintaining ...

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All JobsJavascript Engineer JobsJavascript Engineer Jobs in Philadelphia, PA

Javascript Engineer information

See Philadelphia, PA salary details

$102.9K

$136.8K

$159.4K

How much do javascript engineer jobs pay per year?

As of Aug 14, 2026, the average yearly pay for javascript engineer in Philadelphia, PA is $136,754.00, according to ZipRecruiter salary data. Most workers in this role earn between $126,600.00 and $149,800.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a JavaScript engineer, and why are they important?

To thrive as a JavaScript Engineer, you need strong proficiency in JavaScript, a good understanding of web development fundamentals, and typically a degree in computer science or related experience. Familiarity with frameworks like React or Angular, version control systems like Git, and tools such as Node.js and npm is essential. Excellent problem-solving abilities, teamwork, and effective communication help you deliver robust solutions and collaborate efficiently. These skills and qualities are crucial for building scalable applications and adapting to evolving technology demands.

What are some common challenges a JavaScript engineer faces when working on large-scale applications?

One common challenge for JavaScript Engineers working on large-scale applications is maintaining code quality and consistency as the codebase grows. Managing dependencies, ensuring efficient performance, and coordinating with other team members to avoid merge conflicts are daily concerns. Engineers regularly use tools like linters, testing frameworks, and modular architectures (such as micro frontends) to address these issues. Collaboration with backend developers, product managers, and UX designers is also essential to ensure seamless integration and user experience.

What does a JavaScript engineer do?

As a JavaScript engineer, you develop, improve, and otherwise work with JavaScript software and applications that focus on businesses and individuals. Your duties in this career include writing JavaScript code to produce new functions for computer software and applications, fixing corrupt code that causes website or software malfunctions, and collaborating with other team members with development responsibilities to ensure that coding and programs work together seamlessly. JavaScript engineers need an excellent command of JavaScript language, experience working with computers, and familiarity with other coding languages that coincide with your exact position, such as HTML and CSS if you primarily work with websites.

What is the difference between Javascript Engineer vs Front-End Developer?

AspectJavascript EngineerFront-End Developer
Primary FocusDeveloping complex JavaScript applications, optimizing performance, and implementing advanced featuresBuilding and maintaining user interfaces, focusing on design and user experience
Skills & CertificationsJavaScript, frameworks (React, Angular), problem-solving, sometimes backend knowledgeHTML, CSS, JavaScript, UI/UX design, responsive design
Work EnvironmentTech companies, startups, roles involving full-stack or backend integrationWeb development agencies, tech firms, roles focused on UI/UX

While both roles require JavaScript expertise, Javascript Engineers typically focus on building complex applications and optimizing performance, whereas Front-End Developers concentrate on creating engaging user interfaces and ensuring a seamless user experience. The roles often overlap, but the Javascript Engineer's scope is broader in application development and performance tuning.

More about Javascript Engineer jobs

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For Javascript Engineer jobs in Philadelphia, PA, the most frequently searched job titles are:

What job categories do people searching Javascript Engineer jobs in Philadelphia, PA look for?

The top searched job categories for Javascript Engineer jobs in Philadelphia, PA are:

Javascript Engineer jobs near you
Infographic showing various Javascript Engineer job openings in Philadelphia, PA as of August 2026, with employment types broken down into 92% Full Time, 2% Part Time, and 6% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $136,754 per year, or $65.7 per hour.

Senior Developer

Ruri Software Technologies LLC

Mount Laurel, NJ • On-site

$54 - $71.25/hr

Full-time

Re-posted 21 days ago

Job description

Job Title :Senior Developer
Location: Mt Laurel, New Jersey. Hybrid - onsite 3 times per week
Job Description:
Senior developer with 7-10 years of professional experience working with required technologies
Expert in Python frameworks
Expert in UI Frameworks like ReactJS / VueJS/Angular
Expert in using MySQL or MongoDB
Knowledge on API-Driven Webpages
Good to have PHP knowledge
Good to have Javascript/JQuery experience
Material Design and Bootstrap frameworks knowledge
Participate in design and develop applications as per technical specifications.
Good communication skills
Responsibilities:
Design and Development of Inventory management applications
Top Skills:
Databases:
MySQL, Mongo, Neo4j (graph database)
Programing languages:
Python
Frontend
Vue.js / React / Angular
HTML, javascript, css
Devops tools:
Docker, kubernetes1
Years of Experience: 11.00 Years of Experience
Regards
Surya
Surya@rurisoft.com

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