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Javascript Backend Developer Jobs in Fairfield, NJ

Photon

Sr React Developer- New York

Manhattan, NY · On-site +1

$126K - $165K/yr

You will collaborate with product managers, UX/UI designers, backend engineers, and QA teams to ... Strong proficiency in JavaScript (ES6+) and TypeScript. * Experience with React Hooks, Context API ...

Photon

Sr React Developer- New York

Manhattan, NY · On-site

$126K - $165K/yr

You will collaborate with product managers, UX/UI designers, backend engineers, and QA teams to ... Strong proficiency in JavaScript (ES6+) and TypeScript. * Experience with React Hooks, Context API ...

Grinteq

SFCC Full-Stack Developer

Manhattan, NY · On-site

$40/hr

Develop templates and content slots using ISML, JavaScript/jQuery, HTML, XML, CSS, AJAX and ... Proven experience working in an SFCC / Demandware Platform as a Senior Backend developer.

Capgemini

AEM Front End Developer

Manhattan, NY · On-site

$114K - $133K/yr

... CSS, JavaScript, and relevant AEM frameworks. • Collaborate with UX/UI designers and backend developers to ensure seamless integration of front-end and back-end functionality. • Implement ...

Tennr

Backend Software Engineer

New York, NY · On-site

$170K - $190K/yr

Role Description We're seeking a Backend Engineer with a passion for systems architecture, data ... focus on JavaScript and familiarity with TypeScript. * Proven track record of building and ...

Tennr

Senior Backend Software Engineer

New York, NY · On-site

$190K - $215K/yr

Role Description We're seeking a Senior Backend Engineer with a passion for systems architecture ... focus on JavaScript and familiarity with TypeScript. * Proven track record of building and ...

Anagh Technologies, Inc.

Senior React Developer

Newark, NJ · On-site

$120K - $157K/yr

Work with Back End Engineers on the Design and Implementation of services * Design and build front end Web App Qualifications * 10 years' experience developing front end applications with Javascript ...

nitra

Backend Engineer

New York, NY · On-site

A Backend Engineer with experience in Fintech or marketplaces who will be at the forefront of our ... JavaScript (5+ years) * Node.js (5+ years) * Express.js framework (2+ years) * APIs (5+ years ...

nitra

Backend Engineer

New York, NY · Hybrid

A Backend Engineer with experience in Fintech or marketplaces who will be at the forefront of our ... JavaScript (5+ years) * Node.js (5+ years) * Express.js framework (2+ years) * APIs (5+ years ...

Sarian, Inc.

Big Data, Hadoop Developer

Newark, DE · On-site

Knowledge of back-end programming languages including JavaScript, Node.js, and OOAD. * Familiarity with data loading tools including Squoop and Flume. * High-level analytical and problem-solving ...

1 point system

Front-End (Angular) Developer

Jersey City, NJ · On-site

$108K - $126K/yr

Write clean and efficient JavaScript, CSS, and HTML codes. * Coordinate with the backend team to ... Connect with other team members, such as UX designers, project managers, and backend-developers to ...

nitra

Backend Engineer

New York, NY · Hybrid

A Backend Engineer with experience in Fintech or marketplaces who will be at the forefront of our ... JavaScript (5+ years) * Node.js (5+ years) * Express.js framework (2+ years) * APIs (5+ years ...

nitra

Senior Backend Engineer

New York, NY · Hybrid

A Backend Engineer with experience in Fintech or marketplaces who will be at the forefront of our ... JavaScript (5+ years) * Node.js (5+ years) * Express.js framework (2+ years) * APIs (5+ years ...

nitra

Senior Backend Engineer

New York, NY · On-site

A Backend Engineer with experience in Fintech or marketplaces who will be at the forefront of our ... JavaScript (5+ years) * Node.js (5+ years) * Express.js framework (2+ years) * APIs (5+ years ...

Princeton IT Services

Drupal Developer

New York, NY · On-site

Collaborate with UI/UX designers, backend developers, and stakeholders. * Troubleshoot issues ... Proficiency in PHP, HTML, CSS, JavaScript , and Drupal APIs. * Experience with custom module ...

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All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in Fairfield, NJ

Javascript Backend Developer information

See Fairfield, NJ salary details

$12

$58

$86

How much do javascript backend developer jobs pay per hour?

As of Aug 5, 2026, the average hourly pay for javascript backend developer in Fairfield, NJ is $58.86, according to ZipRecruiter salary data. Most workers in this role earn between $48.27 and $69.62 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 Fairfield, NJ? For Javascript Backend Developer jobs in Fairfield, NJ, the most frequently searched job titles are:
What cities near Fairfield, NJ are hiring for Javascript Backend Developer jobs? Cities near Fairfield, NJ with the most Javascript Backend Developer job openings:
Javascript Backend Developer jobs near you

Sr React Developer- New York

Photon

Manhattan, NY • On-site, Remote

$126K - $165K/yr

Other

Medical, Dental, Vision, Retirement, PTO

Posted 14 days ago

Job description

Position Summary

We are seeking a Senior React Developer to join our team in New York. The ideal candidate will have extensive experience building modern, responsive, and high-performance web applications using React and related frontend technologies. You will collaborate with product managers, UX/UI designers, backend engineers, and QA teams to deliver exceptional user experiences for enterprise-scale applications.

Location

New York, NY (On-site/Hybrid/Remote - based on business needs)

Key Responsibilities

  • Design, develop, and maintain responsive web applications using React.js.
  • Build reusable, modular, and maintainable UI components.
  • Develop new features and optimize existing applications for performance and scalability.
  • Integrate frontend applications with RESTful APIs and GraphQL services.
  • Collaborate with UX/UI designers to translate wireframes and designs into high-quality user interfaces.
  • Implement responsive design and ensure cross-browser compatibility.
  • Write clean, testable, and well-documented code following frontend best practices.
  • Participate in code reviews, technical design discussions, and sprint planning.
  • Identify and resolve performance bottlenecks, bugs, and usability issues.
  • Work closely with backend, DevOps, QA, and product teams throughout the software development lifecycle.

Required Qualifications

  • Bachelor's degree in Computer Science, Engineering, or a related field.
  • 5-8+ years of frontend development experience.
  • 4+ years of hands-on experience with React.js in production environments.
  • Strong proficiency in JavaScript (ES6+) and TypeScript.
  • Experience with React Hooks, Context API, and state management libraries such as Redux or Zustand.
  • Strong knowledge of HTML5, CSS3, Sass, and responsive web design.
  • Experience integrating RESTful APIs and GraphQL.
  • Familiarity with modern frontend build tools such as Vite, Webpack, Babel, and npm/yarn.
  • Experience with Git and Agile/Scrum methodologies.
  • Strong problem-solving, communication, and collaboration skills.

Preferred Qualifications

  • Experience with Next.js and server-side rendering (SSR).
  • Familiarity with micro-frontend architecture.
  • Experience with cloud platforms such as AWS, Azure, or GCP.
  • Knowledge of authentication and authorization using OAuth2, JWT, and OpenID Connect.
  • Experience with accessibility (WCAG), performance optimization, and SEO best practices.
  • Exposure to CI/CD pipelines and containerized deployments.

Technical Skills

  • Frontend: React.js, Next.js, JavaScript (ES6+), TypeScript
  • State Management: Redux, Redux Toolkit, Zustand, Context API
  • Styling: HTML5, CSS3, Sass, Tailwind CSS, Material UI
  • API Integration: REST, GraphQL
  • Testing: Jest, React Testing Library, Cypress
  • Build Tools: Vite, Webpack, Babel
  • Version Control: Git
  • CI/CD: GitHub Actions, Jenkins, Azure DevOps
  • Cloud (Preferred): AWS, Azure, GCP

Nice-to-Have

  • Experience with enterprise SaaS, fintech, healthcare, or e-commerce applications.
  • Knowledge of frontend security best practices and secure coding standards.
  • Experience mentoring junior developers and leading frontend initiatives.
  • React, JavaScript, or cloud-related certifications.

Compensation, Benefits and Duration

Minimum Compensation: USD 40,000
Maximum Compensation: USD 140,000
Compensation is based on actual experience and qualifications of the candidate. The above is a reasonable and a good faith estimate for the role.
Medical, vision, and dental benefits, 401k retirement plan, variable pay/incentives, paid time off, and paid holidays are available for full-time employees.
This position is not available for independent contractors
No applications will be considered if received more than 120 days after the date of this post

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