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Javascript Developer Jobs in Fremont, CA (NOW HIRING)

Looking for a Mid to Senior level JavaScript developer with expetise in JavaScript, NodeJS, Kafka, HTML and CSS. Having Adobe Analytics knowledge to instrument online experience is highly desired.

Advanced JavaScript, and recent experience with it, is an absolute necessity We are not looking for front-end JS developers so front-end JS experience is not a requirement, neither are things like ...

JavaScript Engineer Palo Alto, CA 12 months+ Skills/Experience 6+ years of software engineering experience 6+ years of JavaScript and CSS experience 6+ years of experience integrating with and/or ...

Salesforce Technical Lead

Newark, CA · On-site

$62.50 - $82.75/hr

Salesforce Platform Developer II JavaScript Developer certification * Exposure to multiorg large enterprise implementations * Prior experience in AMS Implementation hybrid roles

Senior Python Developer

San Jose, CA

$142K - $191K/yr

Expert-level JavaScript programming and working knowledge of at least one popular JavaScript framework, extensive knowledge in JQuery/Ajax, experience with AngularJS is a plus. Thorough understanding ...

Senior Python Developer

San Jose, CA · On-site

$142K - $191K/yr

... JavaScript programming and working knowledge of at least one popular JavaScript framework, extensive knowledge in JQuery/Ajax, experience with AngularJS is a plus. • Thorough understanding and ...

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Javascript Developer information

See Fremont, CA salary details

$32.3K

$116.7K

$185K

How much do javascript developer jobs pay per year?

As of Jul 19, 2026, the average yearly pay for javascript developer in Fremont, CA is $116,673.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,200.00 and $140,100.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a JavaScript Developer, and why are they important?

To thrive as a JavaScript Developer, you need strong proficiency in JavaScript, HTML, CSS, and a solid understanding of web development principles, often backed by a degree in computer science or comparable experience. Familiarity with frameworks like React or Angular, version control systems like Git, and build tools such as Webpack is typically required. Problem-solving, attention to detail, and effective communication are crucial soft skills for collaborating on projects and resolving technical challenges. These skills and qualities ensure the delivery of robust, maintainable, and efficient web applications that meet user and business needs.

What Does a JavaScript Developer Do?

As a JavaScript developer, your main responsibilities are to code functional web applications using the JavaScript (JS) programming language and to patch and update application code as needed to optimize functionality. You program front-end code for web applications, collaborate with back-end developers, and use tools like integrated development environments (IDEs), Git, and browser dev tools.

What is the difference between Javascript Developer vs Front-End Developer?

AspectJavascript DeveloperFront-End Developer
Primary FocusWriting and optimizing JavaScript codeDesigning and implementing user interfaces
Required SkillsJavaScript, HTML, CSS, frameworks like React or AngularHTML, CSS, JavaScript, UI/UX design
Work EnvironmentWeb development teams, software companiesWeb design agencies, tech firms, startups

Javascript Developers focus on coding and scripting using JavaScript, while Front-End Developers handle the overall design and user experience of websites. Both roles often overlap, but the Javascript Developer specializes in scripting, whereas the Front-End Developer emphasizes UI/UX design and layout.

What does a JavaScript Developer do?

A JavaScript Developer is responsible for designing, developing, and maintaining web applications using the JavaScript programming language. They typically work on both the front-end (user interface) and sometimes the back-end (server-side) of web projects, creating interactive features, optimizing performance, and ensuring cross-browser compatibility. Their role often involves collaborating with designers and other developers to deliver a seamless user experience.

What are some common challenges faced by JavaScript Developers when working on large-scale applications?

JavaScript Developers working on large-scale applications often encounter challenges such as maintaining code readability, managing dependencies, and ensuring performance optimization. As projects grow, it becomes essential to implement best practices like modularization, code reviews, and thorough testing to prevent bugs and technical debt. Collaboration with backend developers, designers, and QA testers is frequent, requiring clear communication and an agile mindset to deliver features efficiently and address issues as they arise.
What are the most commonly searched types of Javascript Developer jobs in Fremont, CA? The most popular types of Javascript Developer jobs in Fremont, CA are:
What are popular job titles related to Javascript Developer jobs in Fremont, CA? For Javascript Developer jobs in Fremont, CA, the most frequently searched job titles are:
What job categories do people searching Javascript Developer jobs in Fremont, CA look for? The top searched job categories for Javascript Developer jobs in Fremont, CA are:
What cities near Fremont, CA are hiring for Javascript Developer jobs? Cities near Fremont, CA with the most Javascript Developer job openings:
Infographic showing various Javascript Developer job openings in Fremont, CA as of July 2026, with employment types broken down into 100% Full Time. Highlights an 90% In-person, and 10% Remote job distribution, with an average salary of $116,673 per year, or $56.1 per hour.

JavaScript Engineer (Open Source Team)

LangChain, Inc

San Francisco, CA • On-site

$160K - $240K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 11 days ago


Job description

About Us
At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale.
With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we're at a stage where we're continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world.
Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open source downloads, 6,000+ active LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at Klarna, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, LinkedIn, Monday.com, Nvidia, and Bridgewater.
About the Team
The Open Source team builds and maintains the core libraries that developers use to build AI agents with LangChain. The team works directly with the open-source community to improve the ecosystem, maintain core packages, and ensure developers can reliably build and deploy production AI systems using LangChain.
About the Role
We're looking to add a core maintainer to the LangChain team. This person would be responsible for maintaining and improving the LangChain JavaScript package. In-person in SF preferred.
What You'll Do
  • Improve the core abstractions and runtime of the LangChain and LangGraph JavaScript packages
  • Improve documentation across the LangChain ecosystem
  • Answer user questions and resolve issues from the developer community
  • Use LangChain to build example applications that demonstrate best practices for developers building AI systems

What You'll Bring
  • 3+ years of software engineering or applied machine learning experience
  • A background in software engineering
  • Strong written and oral communication skills, with the ability to explain technical concepts clearly and concisely to both technical and non-technical stakeholders
  • The ability to thrive in a fast-moving environment and view unstructured environments as an opportunity to identify the most impactful work and help define the future success of the company
  • An ownership-minded approach to work, with the ability to manage your work efficiently and effectively without the need for close supervision

Compensation
  • Annual salary range: $160,000- $240,000

Compensation Philosophy:
We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks. Actual compensation and offerings will vary based on role, level, and location. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations.
Benefits
Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.