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Javascript Backend Developer Jobs in New York, NY

Braintrust

Software Engineer, Backend

New York, NY · On-site

About the role We're looking for a backend engineer who's excited to build the infrastructure ... Bundling and uploading javascript and python code snippets to be used as online, on-demand function ...

Tennr

Backend Software Engineer

Manhattan, NY · On-site

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 ...

Grinteq

Java Liferay Developer

Manhattan, NY · On-site

$40/hr

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 ...

Anansys Software Inc

AEM Frontend Developer

Manhattan, NY · On-site

$114K - $133K/yr

Write clean, well-documented, and maintainable code using HTML, CSS, JavaScript, and relevant AEM frameworks. Collaborate with UX/UI designers and backend developers to ensure seamless integration of ...

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 ...

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 ...

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

Manhattan, NY · On-site

$140 - $190/hr

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 ...

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 ...

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All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in New York, NY

Javascript Backend Developer information

See New York, NY salary details

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$60

$88

How much do javascript backend developer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for javascript backend developer in New York, NY is $60.24, according to ZipRecruiter salary data. Most workers in this role earn between $49.42 and $71.25 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 New York, NY? For Javascript Backend Developer jobs in New York, NY, the most frequently searched job titles are:
What job categories do people searching Javascript Backend Developer jobs in New York, NY look for? The top searched job categories for Javascript Backend Developer jobs in New York, NY are:
What cities near New York, NY are hiring for Javascript Backend Developer jobs? Cities near New York, NY with the most Javascript Backend Developer job openings:
Javascript Backend Developer jobs near you
Infographic showing various Javascript Backend Developer job openings in New York, NY as of August 2026, with employment types broken down into 87% Full Time, and 13% Contract. Highlights an 75% In-person, and 25% Remote job distribution, with an average salary of $125,306 per year, or $60.2 per hour.

Software Engineer, Backend

Braintrust

New York, NY • On-site

Full-time

Medical, Dental, Vision

Re-posted 16 days ago

Job description

About the company
Braintrust is the agent observability platform. By actively applying intelligence to agent traces and automatically surfacing the most critical patterns, Braintrust gives teams the visibility to understand how agents behave in production and the tools to improve them.
Teams at Notion, Stripe, Box, OpenAI, and Cloudflare use Braintrust to trace their agents, find the issues in their observability data, and run evals that tell them how to improve.
About the role
We're looking for a backend engineer who's excited to build the infrastructure behind cutting-edge AI development tools.
Under the hood, Braintrust is a real-time, high-availability data platform that operates in both SaaS and self-hosted environments. You'll help scale our ingestion pipelines, evolve our open source libraries, and ensure everything runs reliably, observably, and fast. If you thrive in a fast-paced environment and enjoy solving hard systems problems with a product mindset, we'd love to work with you.
What you'll do
As a backend engineer at Braintrust, you'll help build the core platform powering LLM-native development:
  • Design and ship features that give users deep insight into their LLM usage and performance.
  • Build from scratch the unifying layer that proxies, caches, and normalizes calls across OpenAI, Anthropic, Gemini, and every other provider our customers depend on.
  • Develop and evolve robust, efficient open source libraries for tracing and evaluating LLM calls inside customer applications. Check out our SDKs
  • Build highly available real-time data pipelines to ingest, store, and query large volumes of structured and semi-structured AI usage data.

You will also collaborate closely with our product engineers to ship polished, end-to-end features that solve real problems for our customers, such as:
  • Bundling and uploading javascript and python code snippets to be used as online, on-demand function calls for LLM workflows.
  • Support for parsing and uploading attachments from LLM multimodal outputs into long term storage.
  • Role-based access controls and data retention policies for enterprise use cases.

Ideal candidate credentials
  • 5+ years of backend engineering experience across multiple parts of the stack
  • Strong systems thinking: you've owned or contributed to infrastructure projects and know how to design for scale, uptime, and data integrity
  • Proficient in modern backend technologies (e.g., Node.js, Go, Python, Rust, Postgres, Redis, Terraform, Docker, AWS)
  • Experience with observability tooling (e.g., Grafana, Prometheus, Datadog, or similar) and a passion for making systems operable, available and rock solid.
  • Comfortable with ambiguous problems and excited to partner across the company to ship impactful work
  • Clear communicator who documents decisions, shares context, and helps lift the team
Benefits include
  • Medical, dental, and vision insurance
  • Daily lunch, snacks, and beverages
  • Flexible time off
  • Competitive salary and equity
  • Wifi & cellphone stipend
Equal opportunity
Braintrust is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

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