ZipRecruiter

Log In

1

Javascript Backend Developer Jobs in Seattle, WA

Anduril Industries

Senior UI Engineer, Lattice C2

Seattle, WA · On-site

$147K - $184K/yr

... in JavaScript or TypeScript (we use TypeScript, React, and RxJS) • Proficiency with modern backend programming languages such as C++, Rust, or Golang. • Familiarity with algorithms, data ...

krg technology inc

WEb developer

Redmond, WA

... backend capabilities including WebAPIs and personalization support 5. Closely working with the ... NET Framework 9. 3+ years of experience with HTML5, JavaScript, and CSS/LESS 10. 2+ years of ...

Kaav Inc.

.Net Developer-Bellevue, WA

Bellevue, WA · On-site

... JavaScript XML jQuery Knowledge of multiple backend languages eg C Java Python and JavaScript ... Full Stack Developer,Software DeveloperThis is a high PRIORITY requisition. This is a PROACTIVE ...

Microsoft

Senior Software Engineer

Redmond, WA · On-site

$160K - $261K/yr

Designs, implements, debugs, refactors, and optimizes backend services, APIs, and distributed ... Full-stack development experience with modern frontend on Web & Mobile such as JavaScript ...

Staffingine LLC

NET Full Stack Developer

Bellevue, WA · On-site

Web UI Development with Angular functional web interfaces custom HTML CSS JavaScript and ... Backend development and REST API designs Preferred Qualifications * Experience developing in Azure ...

Highbrow

Java Full Stack Developer

Seattle, WA · On-site

$59.75 - $77.25/hr

The ideal candidate will be skilled in Java backend development and modern UI development using ... React, JavaScript, TypeScript, HTML, and CSS · Experience building APIs and distributed ...

Walmart

Senior, Software Engineer - Web/OL

Bellevue, WA · On-site

$108K - $216K/yr

Leverage your strong hold on Node.js for server-side JavaScript, developing scalable backend ... Experience with cloud-native technologies (GCP/Azure) and DevOps practices. * General Skills:

Diverse Lynx

: Net Full stack Developer

Bellevue, WA · On-site

$100K - $120K/yr

JavaScript; C# 5.0; Digital : ReactJS; Digital : Microsoft Azure; Gen AI, ReactJS Roles ... backend components (Azure functions or equivalent). Good to have Accessibility remediation ...

Casne Engineering, Inc.

Be Seen First

Software Developer II

Bellevue, WA · Remote

$90K - $120K/yr

... with backend development Preferred / Nice-to-Have Skills * Jython - Familiarity * JavaScript ... SCADA Systems - Experience in designing, programming in, or developing integrations for SCADA ...

Diverse Lynx

.Net Full Stack Developer

Bellevue, WA · On-site

$80K - $120K/yr

JavaScript; C# 5.0; Digital : ReactJS; Digital : Microsoft Azure; Gen AI, ReactJS Roles ... backend components (Azure functions or equivalent). Good to have Accessibility remediation ...

next page

Showing results 1-20

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.

.Net Full Stack Developer

Tata Consultancy Service Limited

Seattle, WA • On-site

$100K - $110K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 14 days ago

Job description

Must Have Technical/Functional Skills
• Strong hands-on experience with .NET / .NET Core, Automation developer, C#, and RESTful API development.
• Good front-end development skills using Angular / React / Vue (any one preferred).
• Experience with Entity Framework, LINQ, and SQL databases (SQL Server/MySQL/PostgreSQL).
• Good understanding of HTML, CSS, JavaScript, and responsive UI design.
• Experience with microservices, API integration, and cloud platforms (Azure/AWS).
• Familiarity with Git, CI/CD pipelines, and DevOps practices.
• Strong debugging, problem-solving, and clean code practices.
Roles & Responsibilities
• Design, develop, and maintain full-stack applications using .NET on the backend and modern JavaScript frameworks on the frontend.
• Build and consume REST APIs, integrate services, and ensure secure and scalable communication.
• Write clean, maintainable, and efficient code following best practices.
• Collaborate with product owners, UI/UX teams, and QA to deliver end-to-end features.
• Work with SQL databases to design schemas, optimize queries, and manage data access.
• Participate in code reviews, technical discussions, and solution design.
• Troubleshoot issues across the full stackfrontend, backend, and database.
• Implement CI/CD pipelines, automate deployments, and support cloud-hosted environments.
• Ensure application performance, scalability, and security across all components.
• Maintain documentation and support production incidents when required.
Base Salary Range : $100,000 to $110,000 Per Annum
TCS Employee Benefits Summary:
Discretionary Annual Incentive.
Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans.
Family Support: Maternal & Parental Leaves.
Insurance Options: Auto & Home Insurance, Identity Theft Protection.
Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement.
Time Off: Vacation, Time Off, Sick Leave & Holidays.
Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing.
#LI-SV2
#LI-KUMARAN

Apply