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Javascript Backend Developer Jobs in Seattle, WA

Jobsbridge

Java Backend Developer

Redmond, WA · On-site

$56.50 - $73.25/hr

... with HTML, CSS, Javascript, XML and other related technologies Experience working on Database - MySQL, Oracle or Mongo etc Ability to communicate effectively orally and through writing.

SynergisticIT

Java / Back-End Developer

Bremerton, WA · On-site

$54.75 - $70.75/hr

... Javascript, C++, or software programming Spring boot, Microservices, Docker, Jenkins, Github, Kubernates, and REST API's experience Excellent written and verbal communication skills If you get emails ...

SynergisticIT

Junior Java Backend Developer

Tacoma, WA · On-site

... javascript, C++ or software programming Spring boot, Microservices, AWS, Docker, Jenkins, Github, Kubernates and REST API's experience For data Science/Data Engineer, Data Analyst/AI/Machine learning ...

MSRCosmos

React Developer

Seattle, WA · On-site

$118K - $137K/yr

Develop responsive, scalable UI components using React, TypeScript, and modern JavaScript * Collaborate with designers, product managers, and backend engineers to deliver seamless user experiences

SynergisticIT

Java/Backend Developer - Junior

Seattle, WA · On-site

... Javascript, C++, or software programming Spring boot, Microservices, Docker, Jenkins, Github, Kubernates, and REST API's experience Excellent written and verbal communication skills If you get emails ...

Abode Tech Zone

React Developer

Bothell, WA · On-site

$118K - $137K/yr

React Developer Location : Bothell, WA (Hybrid Model) ( Need Local profiles only) Long Term ... JavaScript (ES6+). * Experience with Node.js for backend integration and API handling.

Adobe, Inc.

Backend Software Engineer

Seattle, WA · On-site

Marketo is seeking an experienced Backend Software Engineer to join our Customer Engineering Team ... All the web basics covered - DOM, HTML5, CSS3 and JavaScript * Comfort working with SQL or NoSQL ...

Adobe

Backend Software Engineer

Seattle, WA

Marketois seeking an experienced Backend Software Engineer to join our Customer Engineering Team ... All the web basics covered - DOM, HTML5, CSS3 and JavaScript * Comfort working with SQL or NoSQL ...

Zortech Solutions

Lead UI Developer

Seattle, WA · On-site

$66.25 - $84.75/hr

... CSS, and JavaScript. * Working with modern front-end frameworks such as React, Vue.js to build ... Collaborating closely with product managers, designers, and backend engineers to identify and ...

Yochana

UX Developer

Redmond, WA · On-site

You will collaborate closely with designers, product managers, and backend engineers to deliver ... Proficiency in TypeScript and modern JavaScript (ES6+). * Hands-on experience with React, or ...

Akshaya Inc

React.js AND Next. Js Developer

Seattle, WA · On-site

$118K - $137K/yr

... with backend developers, UX/UI designers, and product teams Ensure code quality through code ... Proficiency in JavaScript (ES6+) and/or TypeScript Solid understanding of SSR, SSG, ISR, and ...

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All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in Seattle, WA

Javascript Backend Developer information

See Seattle, WA salary details

$13

$65

$96

How much do javascript backend developer jobs pay per hour?

As of Jun 27, 2026, the average hourly pay for javascript backend developer in Seattle, WA is $65.70, according to ZipRecruiter salary data. Most workers in this role earn between $53.89 and $77.69 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.

Which pays more, JavaScript or Python?

For a JavaScript Backend Developer, Python developers often have higher average salaries due to demand in data science, machine learning, and backend development. However, salary differences depend on experience, location, and industry, with both skills being highly valued in tech roles.

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.

Can I learn backend in 6 months?

A JavaScript Backend Developer can acquire foundational backend skills in about 6 months with consistent study, focusing on server-side frameworks like Node.js, databases, and APIs. However, mastering complex systems and gaining real-world experience typically requires ongoing learning beyond this timeframe.

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 through environments like Node.js, allowing developers to build scalable server-side applications using a single language. It offers a large ecosystem of libraries and frameworks, making it a popular choice for full-stack developers. Knowledge of asynchronous programming and server management is beneficial for backend roles involving JavaScript.

What is the salary of a JavaScript beginner?

The salary of a JavaScript beginner typically ranges from $50,000 to $70,000 annually, depending on location, education, and prior experience. Entry-level JavaScript developers often start with basic skills in front-end or back-end frameworks and may earn less in regions with lower living costs.
What are popular job titles related to Javascript Backend Developer jobs in Seattle, WA? For Javascript Backend Developer jobs in Seattle, WA, the most frequently searched job titles are:
What job categories do people searching Javascript Backend Developer jobs in Seattle, WA look for? The top searched job categories for Javascript Backend Developer jobs in Seattle, WA are:
What cities near Seattle, WA are hiring for Javascript Backend Developer jobs? Cities near Seattle, WA with the most Javascript Backend Developer job openings:
Javascript Backend Developer jobs near you
Infographic showing various Javascript Backend Developer job openings in Seattle, WA as of June 2026, with employment types broken down into 96% Full Time, 2% Part Time, and 2% Contract. Highlights an 78% Physical, 4% Hybrid, and 18% Remote job distribution, with an average salary of $136,661 per year, or $65.7 per hour.
Java Front end and Back end developer

Java Front end and Back end developer

krg technology inc

Bellevue, WA

Other

Posted 27 days ago

Job description

Company Description

Thendral

Email : thendral (at) krgtech (dot) com

661 367 8000 * 609

Job Description

Position 1: Backend Developer

  • Experience/Strong knowledge in framework (Spring or Hibernate).
  • Experience/Strong knowledge in Restful API.

Position 2: Front End Developer

  • Experience/Knowledge in HTML, CSS, JavaScript

Additional Information

Locals to Washington who can go for a inperson interview on Oct 22@ Redmond,WA - HCL Office

KRG Technologies logo

About KRG Technologies

Sourced by ZipRecruiter

KRG Technologies was founded with a simple motive of offering the clients exactly what they want, how they want and when they want. By leveraging for its clients its technological edge and right-sourcing advantage, KRG in a short period of time has grown to become one of the most trusted strategic technology partners. Treating every client as the top priority, we customize our solutions and services to align with the unique needs of each client. Headquartered in Valencia, California, KRG employs a unique global delivery platform to minister its offerings spanning from application development and maintenance to business process reengineering. With years of hands-on domain experience and international presence, we offer state-of-the-art solutions backed by our follow-the-sun service model in the most cost effective manner. We value our clientele for the trust reposed in us and our clientele admire us for our personalized approach and deep commitment to their success. Our biggest strength lies in technical expertise of our team and individual competency of our employees, which enables us to be the most befitting solution provider.

Industry

It services

Company size

201 - 500 Employees

Headquarters location

Valencia, CA, US

Year founded

2003

Social media

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