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Javascript Backend Developer Jobs in Philadelphia, PA

Arka Infotech Inc

Hadoop Developer

Wilmington, DE · On-site

Hadoop Developer Location: Wilmington, DE Length: 2 years F2F REQUIRED Locals only Requirements ... back-end solutions written in Java - Proficiency with scripting languages (Python, Perl, JavaScript ...

Arka Infotech Inc

Hadoop Developer

Wilmington, DE

Hadoop Developer Location: Wilmington, DE Length: 2 years F2F REQUIRED Visa copy required for ... back-end solutions written in Java - Proficiency with scripting languages (Python, Perl, JavaScript ...

Innosystech Inc

Full Stack Developer

Philadelphia, PA · On-site

$55 - $60/hr

HTML5, CSS3, JavaScript/TypeScript * Experience with backend development using Java, Spring Boot ... Knowledge of DevOps practices and CI/CD Pipelines * Experience with version control systems (e.g ...

Trail Blazer Consulting LLC

UI Developer

Malvern, PA · On-site

$49 - $63.75/hr

... JavaScript (Python experience is a plus). • Experience building and maintaining end-to-end (E2E ... backend services. • Experience with source control systems such as Git and collaborative ...

Sarian, Inc.

AI Chatbot Developer

Pennington, NJ · On-site

Python (required), JavaScript/Node.js (preferred). * Frameworks: Flask, FastAPI (or Django). * AI ... Create and integrate REST APIs for chatbot communication and backend logic. * Engineer prompts ...

Sarian, Inc.

Angular + Python Developer

Pennington, NJ · On-site

Develop and maintain robust, scalable backend services using Python. * Build dynamic and responsive ... HTML5, CSS3, JavaScript, TypeScript. * Strong problem-solving skills and ability to work in a team ...

Sarian, Inc.

Python + Angular Developer

Pennington, NJ · On-site

Develop and maintain robust, scalable backend services using Python. * Build dynamic and responsive ... HTML5, CSS3, JavaScript, TypeScript. * Strong problem-solving skills and ability to work in a team ...

AEFIS

UI/UX Developer (Remote)

Philadelphia, PA · On-site +1

$50.50 - $65.50/hr

Work together with back-end developers and other IT professionals to complete requirements ... Solid experience in designing and building highly usable UI * Strong knowledge of Javascript/ES6

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All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in Philadelphia, PA

Javascript Backend Developer information

See Philadelphia, PA salary details

$12

$58

$85

How much do javascript backend developer jobs pay per hour?

As of Aug 18, 2026, the average hourly pay for javascript backend developer in Philadelphia, PA is $58.26, according to ZipRecruiter salary data. Most workers in this role earn between $47.79 and $68.89 per hour, depending on experience, location, and employer.

What does a JavaScript backend developer do?

A JavaScript Backend Developer is responsible for building and maintaining the server-side logic, databases, and APIs that power web applications. They use JavaScript, often with frameworks like Node.js, to process requests, manage data, and ensure smooth communication between the frontend and backend of an application. Their work ensures that web applications are scalable, secure, and efficient. JavaScript Backend Developers also collaborate with frontend developers and other team members to deliver seamless user experiences.

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

To thrive as a Javascript Backend Developer, you need strong proficiency in JavaScript (especially Node.js), knowledge of backend frameworks, and a solid understanding of databases such as MongoDB or PostgreSQL. Familiarity with development tools like Git, RESTful APIs, Docker, and cloud platforms, as well as relevant certifications, is highly valuable. Excellent problem-solving, teamwork, and communication skills help you collaborate effectively and deliver robust solutions. These abilities are crucial for building scalable, secure, and maintainable backend services that power modern applications.

What are the typical challenges a JavaScript backend developer faces when scaling applications for high traffic?

JavaScript Backend Developers, especially those working with Node.js, often encounter challenges related to handling high concurrency, optimizing database queries, and maintaining application performance under heavy load. Ensuring efficient memory management and implementing robust error handling are also critical when scaling. Working closely with DevOps and frontend teams to optimize APIs and monitor system health is essential for delivering reliable, scalable backend solutions.

What is the difference between Javascript Backend Developer vs Javascript Frontend Developer?

AspectJavascript Backend DeveloperJavascript Frontend Developer
Primary FocusServer-side development, APIs, databasesUser interface, client-side interactions
Required SkillsNode.js, databases, server managementHTML, CSS, JavaScript, UI frameworks
Work EnvironmentBack-end servers, cloud platformsWeb browsers, client devices
Common UsageBuilding APIs, server logicDesigning web pages, user experience

The main difference between a Javascript Backend Developer and a Javascript Frontend Developer lies in their focus areas. Backend developers handle server-side logic, databases, and APIs, while frontend developers focus on creating engaging user interfaces and client-side interactions. Both roles require JavaScript skills but apply them in different parts of web development projects.

What are popular job titles related to Javascript Backend Developer jobs in Philadelphia, PA?

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

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

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

What cities near Philadelphia, PA are hiring for Javascript Backend Developer jobs?

Cities near Philadelphia, PA with the most Javascript Backend Developer job openings:

Javascript Backend Developer jobs near you
Infographic showing various Javascript Backend Developer job openings in Philadelphia, PA as of August 2026, with employment types broken down into 81% Full Time, 5% Part Time, and 14% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $121,178 per year, or $58.3 per hour.

Front-End Developer with Security Clearance

Everforth

King Of Prussia, PA • On-site

$101K - $118K/yr

Contractor

Re-posted 17 days ago

Job description

We are seeking a Frontend Software Engineer to design, develop, and enhance modern web applications with a strong focus on user experience, usability, and responsive interface design. This role will collaborate with cross-functional teams including UX designers, systems engineers, product stakeholders, and backend developers to deliver scalable, high-quality software solutions throughout the full Software Development Life Cycle (SDLC).
Candidates may be considered for Engineer II, III, or IV levels based on experience and qualifications. Responsibilities
• Design and develop responsive web applications using modern frontend technologies.
• Translate UI/UX designs into production-ready user interfaces.
• Collaborate with designers and stakeholders throughout the design and iteration process.
• Integrate frontend applications with RESTful APIs and backend services.
• Participate in software architecture, technical design, and code reviews.
• Develop and maintain automated testing strategies to ensure application quality.
• Troubleshoot, debug, and resolve software defects.
• Support software deployments and continuous integration/continuous delivery processes.
• Contribute throughout the Software Development Life Cycle, from requirements gathering through deployment and sustainment.
• Work within Agile development teams and participate in sprint planning, refinement, and retrospectives. Required Qualifications
• Experience developing frontend applications using: o Angular
o JavaScript
o HTML
o CSS
• Experience integrating REST APIs into web applications.
• Experience with Docker-based development environments.
• Experience with UI/UX design processes and collaboration.
• Experience with one or more design tools such as: o Figma
o MockFlow
o UXPin
o Axure
• Experience supporting software development through multiple phases of the SDLC. Preferred Qualifications
• Experience with automated UI testing frameworks such as: o Cypress
o Selenium
o Playwright
o Jest
• Experience working in Agile development environments.
• Experience with GitLab CI/CD pipelines.
• Experience with Kubernetes and Helm.
• Experience working in a full-stack engineering capacity.
• Experience with: o Python
o Flask
o gRPC
• Experience leveraging AI-assisted design and development tools such as: o Figma AI
o UX Pilot
o Google Stitch

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