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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 ...

Clerkie

Backend Engineer

Los Angeles, 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 ...

Beacon AI

Software Engineer, Backend

San Carlos, CA · On-site +1

Experience with at least one modern backend language such as Python or JavaScript/TypeScript ... Familiarity with cloud platforms, CI/CD workflows, or DevOps concepts. Work Location This is a ...

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 ...

Thatch

Software Engineer: Backend

San Francisco, CA

$161K - $230K/yr

Small amounts of Python and backend JavaScript where appropriate. Prior Ruby experience is helpful but not required. We value engineers who can learn quickly and think clearly about systems.

KBR Careers

Frontend Developer

El Segundo, CA · On-site

$110K - $128K/yr

... backend, DevOps, product) Qualifications : Required : • Ability to obtain and maintain a Secret ... and modern JavaScript (ES6+) • Strong experience with HTML5, CSS3/SASS, and responsive ...

Doist

Software Engineer: Backend

San Francisco, CA · On-site

$161 - $230/hr

Small amounts of Python and backend JavaScript where appropriate. Prior Ruby experience is helpful but not required. We value engineers who can learn quickly and think clearly about systems.

New

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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Javascript Backend Developer information

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How much do javascript backend developer jobs pay per hour?

As of Aug 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.

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 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 August 2026, with employment types broken down into 85% Full Time, 2% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $118,514 per year, or $57 per hour.

Software Engineer - Backend (Remote)

Allocate

Menlo Park, CA • Remote

Full-time

Medical, Dental, Vision, Retirement

Re-posted 9 days ago

Job description


About Allocate

We founded Allocate with the simple mission of making investing in top-tier private alternatives within the technology sector more accessible for a broader set of investors. We believe that the mark of healthy and efficient markets requires the financial inclusion of all qualified market participants. However, despite significant demand, investing in private technology-focused alternatives is more complex than ever as discovery, investment diligence and selection, access, and deal execution all serve as substantial roadblocks. With Allocate, investors can find, invest (through Allocate SPV feeders), and track highly vetted opportunities through our turnkey digital platform in a single easy-to-use interface.

Job Description

Allocate is looking to add a new backend software engineer to the team!  We’re seeking a proactive backend developer who can help us deliver on our roadmap.  This role is perfect for someone who's passionate about building robust, scalable, and reliable APIs in the context of a rapidly growing development team.  You'll have the opportunity to work on developing new products & features while enhancing existing solutions, all while collaborating with a group of talented individuals who are just as passionate about technology as you are.

Essential Responsibilities and Duties:
  • Design & implement new features and endpoints in backend APIs
  • Design & implement schema changes to support these new features
Must Haves:
  • 2-3 years of object-oriented software engineering experience
  • 1 year of C# experience
  • 1-2 years experience with SQL-based databases, PostgreSQL a plus
    • Must understand the basics of designing a schema for performance
  • Previous experience building REST APIs
  • Ability to participate in a Git-based development environment with standard work management system
  • Attention to detail and a quality-focused mindset
  • Strong communication skills, which have increased importance in a fully remote environment
  • Ability to work collaboratively as part of a larger team to deliver key projects & milestones
Nice to Haves (Frontend and DevOps):
  • ASP.NET Web API development experience
  • Experience writing unit tests (xUnit, NUnit, JUnit, etc)
  • Familiarity with basic ORM concepts (such as in Dapper, EntityFramework, etc)
  • Familiarity with FluentMigrator
  • Terraform
  • Docker experience with multiple containers
  • Awareness of the most common AWS services
    • S3, ECS/EKS/Bedrock, etc
  • Experience with Vue, Javascript/TypeScript, and/or raw CSS
Education:
  • Bachelor’s degree in Computer Science, similar technical field of study, or equivalent practical experience
Essential Values & Culture
  • Providing our clients with a world-class experience is our number one priority. We obsessively search for ways to improve the experience for our clients and partners. This requires extraordinary response times, proactivity, and ensuring that everything we do, from product strategy to offline communications is a top-tier client experience.
  • Challenge convention: Instead of detailing all the reasons why an idea may not work, we constantly question things to determine how a viable idea may be put into motion.
  • Commitment to continuous improvement: We find ways to personally scale each day by pushing ourselves up the learning curve.
  • Meritocracy, not politics: We place the utmost value on results and rewards through merit, not reward actions driven by political agendas or behavior.
  • Civil Discourse is embraced: We believe open, intellectually curious conversations are required to consistently arrive at the best decisions. Respect is paramount in our dealings with one another, but our mission is always to get the right answer collectively, not to be right.
Additional Details
  • A broadband internet connection is required
  • Seniority: 1-3 years of experience
  • Location: All US candidates will be considered
  • Salary: $110k-125k + bonus + equity
  • Benefits: Medical, dental, vision, responsible time off (RTO), 401k
  • Employment: Full-time
  • This role will be subject to Allocate's Code of Ethics and related compliance obligations of Allocate

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