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Javascript Backend Developer Jobs in California (NOW HIRING)

Nastech Global

Frontend Developer

Sunnyvale, CA · On-site

$122K - $142K/yr

Sunnyvale, CA (onsite) Job Type: Full time Must Have Technical/Functional Skills We are seeking a Senior Frontend Developer with deep expertise in React and JavaScript, and exposure to backend ...

Clerkie

Backend Engineer

San Francisco, CA · Remote

$90/hr

At Clerkie, engineers operate with a high degree of ownership and autonomy. You'll collaborate ... Proficiency in JavaScript / Node.js (or similar backend languages) * Experience working with ...

Winaxis

Software Engineer (Back End)

Fremont, CA · On-site

Title: Software Engineer (Back End) Location: Fremont, CA Duration: 12+ Mos Summary: Our direct ... Javascript, Docker, Kubernetes Qualifications: · Experience writing code in object oriented ...

HonorVet Technologies

Dynamic Developer

Los Angeles, CA · Hybrid

Proficiency in HTML, CSS, and at least one back-end programming language (PHP, ASP.NET, JavaScript, or Ruby on Rails) * Experience working with relational and non-relational databases * Knowledge of ...

Jobsbridge

Jr.AngularJS-JavaScript Developer

Santa Ana, CA · On-site

$57 - $69.75/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ... backend, coding. Qualifications AngularJS,JavaScript,Apache Additional Information Only OPT

D3

Backend Engineer - New Grad

Los Angeles, CA · On-site

Familiarity with at least one backend programming language (e.g., JavaScript/Node.js, Python, or similar). * Basic knowledge of databases such as MySQL or PostgreSQL. * Understanding of version ...

D3

Backend Engineer - New Grad

Los Angeles, CA

Familiarity with at least one backend programming language (e.g., JavaScript/Node.js, Python, or similar). * Basic knowledge of databases such as MySQL or PostgreSQL. * Understanding of version ...

D3

Backend Engineer - New Grad

Los Angeles, CA · On-site

Familiarity with at least one backend programming language (e.g., JavaScript/Node.js, Python, or similar). * Basic knowledge of databases such as MySQL or PostgreSQL. * Understanding of version ...

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All JobsJavascript Backend Developer JobsJavascript Backend Developer Jobs in California

Javascript Backend Developer information

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$11

$56

$83

How much do javascript backend developer jobs pay per hour?

As of Jun 19, 2026, the average hourly pay for javascript backend developer in California is $56.98, according to ZipRecruiter salary data. Most workers in this role earn between $46.73 and $67.36 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 California? For Javascript Backend Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Javascript Backend Developer jobs in California look for? The top searched job categories for Javascript Backend Developer jobs in California are:
What cities in California are hiring for Javascript Backend Developer jobs? Cities in California with the most Javascript Backend Developer job openings:
Javascript Backend Developer jobs near you
Infographic showing various Javascript Backend Developer job openings in California as of June 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $118,514 per year, or $57 per hour.

Frontend Developer

Nastech Global

Sunnyvale, CA • On-site

$122K - $142K/yr

Full-time

Posted 12 days ago

Job description

Job Title: Senior Front end Developer
Location: Sunnyvale, CA (onsite)
Job Type: Full time
 
Job Description

Must Have Technical/Functional Skills

We are seeking a Senior Frontend Developer with deep expertise in React and JavaScript, and exposure to backend systems, cloud-native infrastructure, and automation tooling. Candidate will play a key role in building intuitive, scalable, and high-performance user interfaces while collaborating across disciplines to ensure seamless integration with backend services and infrastructure.

Required skills

• 6+ years of JavaScript development experience

• 6+ years of React development experience

• 5+ years of API development experience

• Familiarity with industry standard GraphQL concepts (Fragments, codegen tooling, Relay Cursor Connection Specification, etc).

Preferred skills

• General distributed systems knowledge

• Kubernetes / Cloud technologies

• Terraform / orchestration tooling

• Python

Roles & Responsibilities

Key Responsibilities:

• Design, develop, and maintain complex, data-rich frontend applications using React and modern JavaScript (ES6+)

• Work closely with design, product, and backend engineering teams to deliver cohesive, high-quality features

• Contribute to system architecture and make decisions that impact the scalability and performance of the frontend

• Integrate with RESTful and/or GraphQL APIs; contribute to the design of frontend/backend contracts

• Optimize applications for maximum speed and scalability

• Write clean, testable, and maintainable code using best practices and tools (e.g., Jest, ESLint, Cypress)

• Mentor junior developers and participate in code reviews

• Collaborate with DevOps and backend engineers to ensure effective deployment, monitoring, and performance tuning of frontend components in cloud-native environments