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Javascript Backend Developer Jobs in Brooklyn, NY

They are seeking a Backend Engineer to architect and implement features across their backend ... Required : • 3+ years of experience in backend development, with a strong focus on JavaScript and ...

Position We are looking for an Experienced Java Back-End Developer to join our team ... Implement UI improvements using JavaScript, CSS, and Liferay frontend tools. * Ensure the content ...

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.

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 ...

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 ...

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 ...

React Developer

Manhattan, NY · On-site

$114K - $133K/yr

You will work closely with designers and backend developers to create exceptional user experiences ... Strong JavaScript and React.js knowledge. * Experience with component-based architecture.

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 ...

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 ...

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 ...

Java FullStack Developer - Backend

New York, NY · On-site

$57.50 - $74/hr

Java Full Stack Developer (60% Backend & 40% Frontend) No of Openings - 4 Openings Exp level - 10+ ... CSS3 JavaScript and frameworks like Angular or React •   Database Experience with RDBMS ...

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Javascript Backend Developer information

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How much do javascript backend developer jobs pay per hour?

As of Jul 20, 2026, the average hourly pay for javascript backend developer in Brooklyn, NY is $60.71, according to ZipRecruiter salary data. Most workers in this role earn between $49.81 and $71.78 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.
What are popular job titles related to Javascript Backend Developer jobs in Brooklyn, NY? For Javascript Backend Developer jobs in Brooklyn, NY, the most frequently searched job titles are:
What job categories do people searching Javascript Backend Developer jobs in Brooklyn, NY look for? The top searched job categories for Javascript Backend Developer jobs in Brooklyn, NY are:
What cities near Brooklyn, NY are hiring for Javascript Backend Developer jobs? Cities near Brooklyn, NY with the most Javascript Backend Developer job openings:
Backend Software Engineer

Backend Software Engineer

Tennr

Manhattan, NY • On-site

Full-time

Re-posted 27 days ago


Job description

Job Summary:
Tennr is a company focused on streamlining the healthcare referral process through innovative technology. They are seeking a Backend Engineer to architect and implement features across their backend services, with a strong emphasis on workflow automation and machine learning integration.
Responsibilities:
• Architect and implement features that drive direct customer value end-to-end across our backend services and infrastructure.
• Lead initiatives in high-volume workflow automation, with a strong focus on building and optimizing scalable data processing and machine learning infrastructure.
• Design and maintain complex workflows that leverage machine learning to drive automation.
• Drive performance optimization efforts, ensuring scalability, reliability, and adherence to best practices across all layers of our stack.
• Collaborate with sales and customer success teams to respond to feedback from our customers and prospects.
• Embrace a founder’s mindset, proactively driving projects from conception to completion, and contributing significantly to our company’s growth and success.
Qualifications:
Required:
• 3+ years of experience in backend development, with a strong focus on JavaScript and familiarity with TypeScript.
• Proven track record of building and maintaining scalable web applications, particularly in high-volume workflow automation and data processing.
• Experience with integrating machine learning models into production environments and optimizing data pipelines.
• Excellent problem-solving skills and a knack for efficient, clean coding practices.
• Outstanding communication skills, capable of articulating complex technical concepts to a diverse audience.
• A team player who thrives in collaborative environments and values diverse perspectives.
Preferred:
• Prior experience in a startup or fast-paced tech environment is a plus.
Company:
Tennr is a healthcare AI startup that provides an automation platform for medical documents. Founded in 2021, the company is headquartered in New York, USA, with a team of 201-500 employees. The company is currently Growth Stage.

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About Tennr

Sourced by ZipRecruiter

Industry

Health care and social assistance

Company size

11 - 50 Employees

Headquarters location

New York, NY, US

Year founded

2021