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Javascript Backend Developer Jobs in Philadelphia, PA

CYNET SYSTEMS

Angular UI Developer

Malvern, PA · On-site

$60 - $65/hr

Advanced knowledge of HTML5, CSS3, JavaScript, and TypeScript. * Hands-on experience with Git for ... Collaborate with UX designers and backend developers to deliver seamless user experiences.

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 · 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 ...

Sharpedge Solutions

Senior Angular Developer

North Wales, PA · On-site

$53 - $64.75/hr

TypeScript / JavaScript * HTML5 / Semantic Markup * Reactive Forms * RxJS * jQuery * REST API ... Collaborate closely with backend, QA, and product teams on API contracts and delivery planning

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

$11

$55

$80

How much do javascript backend developer jobs pay per hour?

As of Jul 13, 2026, the average hourly pay for javascript backend developer in Philadelphia, PA is $55.18, according to ZipRecruiter salary data. Most workers in this role earn between $45.24 and $65.24 per hour, depending on experience, location, and employer.

Can I learn backend in 3 months?

A JavaScript Backend Developer can acquire foundational backend skills in about three months with focused study, including learning Node.js, databases, and APIs. However, becoming proficient and gaining job-ready experience typically requires ongoing practice and real-world project work beyond this timeframe.

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 is JavaScript salary?

The salary for a JavaScript Backend Developer varies based on experience, location, and company size, but typically ranges from $70,000 to $120,000 annually in many regions. Skilled developers with knowledge of frameworks like Node.js and experience with cloud services tend to earn higher salaries. Entry-level positions may start lower, while senior roles can exceed $150,000.

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.

Is JavaScript good for backend development?

JavaScript is widely used for backend development, especially with environments like Node.js, which allows developers to build scalable server-side applications using the same language as frontend development. It offers a large ecosystem of libraries and frameworks, making it a popular choice for full-stack developers and backend roles requiring proficiency in JavaScript. Knowledge of asynchronous programming and server management is beneficial for backend JavaScript development.

Are JavaScript developers in demand?

JavaScript developers are in high demand due to the widespread use of JavaScript for web development, both on the client and server sides with frameworks like Node.js. Companies seek developers skilled in JavaScript, front-end frameworks, and related tools to build dynamic, responsive applications, making it a valuable skill in the tech industry.
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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 July 2026, with employment types broken down into 81% Full Time, 15% Part Time, and 4% Contract. Highlights an 76% Physical, 5% Hybrid, and 19% Remote job distribution, with an average salary of $114,769 per year, or $55.2 per hour.
Angular UI Developer

Angular UI Developer

CYNET SYSTEMS

Malvern, PA • On-site

$60 - $65/hr

Contractor

Posted 26 days ago

Job description

Job Overview:

Pay Range: $60hr - $65hr

Requirement/Must Have:

  • 1+ years of experience in developing and maintaining responsive web applications using Angular (latest versions).
  • Strong proficiency in building dynamic, responsive UI with Angular (v17+).
  • Advanced knowledge of HTML5, CSS3, JavaScript, and TypeScript.
  • Hands-on experience with Git for version control and branching strategies.
  • Strong understanding of RESTful APIs and integration with backend services.

Responsibilities:

  • Develop and maintain responsive web applications using Angular (latest versions).
  • Collaborate with UX designers and backend developers to deliver seamless user experiences.
  • Optimize application performance and ensure high-quality standards.
  • Implement reusable components and follow best practices for UI development.
  • Participate in code reviews and contribute to continuous improvement.

Nice to Have:

  • Familiarity with AWS for cloud deployment and services.
  • Experience in server-side development with Node.js.
  • Knowledge of backend development for integration purposes using Java.
  • Experience with Pandas and/or PySpark for data processing.
  • Willingness to learn React and Stencil JS for future projects.
 

Founded in 2010 and headquartered in the Washington, DC metro area, Cynet Systems Inc. is a leading staffing and recruiting powerhouse. Proudly recognized as a nationally and locally certified diversity firm, Cynet delivers agile, scalable talent solutions across industries. With an active footprint in all 50 U.S. states and Canada, we support thousands of consultants through our expansive, high-performing recruitment engine operating across North America and Asia—ensuring speed, quality, and consistency in every hire.
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About Cynet Systems

Sourced by ZipRecruiter

Cynet Systems Inc is a staffing and recruiting corporation nestled in Ashburn, VA, USA. Established in 2010, the company operates within the Information Technology and Services sector, specializing in providing effective workforce solutions to different business needs, including IT consulting, direct hire, and contract staffing services. Through the years, Cynet Systems has built an impressive portfolio, going beyond borders and expanding its operations internationally in Canada and India. Rooted in its core values of teamwork, leadership, and commitment, Cynet Systems helps businesses unlock their full potential by providing versatile and competent professionals that perfectly align with their needs. Fueled by their unwavering mission to deliver top-tier talent to businesses worldwide, Cynet Systems garnered various recognitions including SIA's fastest-growing staffing firms and Best Place to Work in Virginia for 2019.

Industry

It services

Company size

501 - 1,000 Employees

Headquarters location

Sterling, VA, US

Year founded

2010

Social media

Twitter

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