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Javascript Backend Developer Jobs in Philadelphia, PA

Arka Infotech Inc

Hadoop Developer

Wilmington, DE

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 · On-site

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 ...

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 ...

Mondo

Lead Software Engineer

Wilmington, DE · Hybrid

$65 - $73/hr

Strong hands-on frontend engineering experience with React, TypeScript, and JavaScript * Strong backend engineering experience with Node.js * Experience building APIs, microservices, distributed ...

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Javascript Backend Developer information

See Philadelphia, PA salary details

$12

$58

$85

How much do javascript backend developer jobs pay per hour?

As of May 29, 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 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 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 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:
Javascript Backend Developer jobs near you
Infographic showing various Javascript Backend Developer job openings in Philadelphia, PA as of May 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $121,178 per year, or $58.3 per hour.
Senior Front End Developer

Senior Front End Developer

Two95 International Inc.

King Of Prussia, PA

$114.50K - $150.30K/yr

Contractor

Posted 6 days ago

Job description

Title: Senior Front End Developer

Location: King Of Prussia, PA

Duration: 6+ Months

Requirements: :

  • 5+ years web application development experience.
  • 3+ years of working experience with Rails or another front-end framework such as Angular, Vue or similar.
  • Support the maintenance and enhancement of business-critical web-based applications in production..
  • Develop functional and appealing web- and mobile-based applications based on usability.
  • Provide website maintenance and enhancements.
  • Create quality mockups and prototypes on tight timelines.
  • Assist back-end developers with coding and troubleshooting.
  • Create cascading style sheets (CSS) that are consistent across all browsers and platforms using SASS.
  • Maintain graphic standards and branding throughout the product's interface.
  • Stay up-to-date on emerging technologies.
  • Promote usability best practices.
  • Support the analysis of business requirements, design specifications, development, and technical and user documentation of report development through direct interaction with internal customers.
  • Communicates status issues and changes to appropriate audience.
  • Support the research, recommendation and innovation of new web & digital development technologies.
  • Solid understanding of front-end technologies (JavaScript/JQuery, HTML5/CSS3, bootstrap) and modern frameworks.
  • Strong analytical, problem solving, and organizational skills; attention to detail; and ability to coordinate multiple tasks, set priorities, and meet deadlines.
  • Self-motivation, ability to work effectively as a member of a team or independently as the particular assignment requires.
  • Expert knowledge of HTML5, CSS3/SCSS, jQuery, OOP, Bootstrap 3 or higher, Javascript ES6..
  • Experience with SQL, Git, and working with APIs.
  • Experience with MiniTest/RSpec, Jasmine or other testing tool.
  • Experience using a continuous integration/continuous deployment process.
TWO95 International logo

About TWO95 International

Sourced by ZipRecruiter

At TWO95 International, we believe it is imperative that a hiring company is assured of procuring the right candidate to fill a job requirement. We have an extensive local and International network, and a fully digitalized sourcing approach that allows us to find a candidate best suited for the job. Furthermore, we strive to secure well matched opportunities that align with the personal and career aspirations of our candidates.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Cherry Hill, NJ, US

Year founded

2009

Social media

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