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Senior Javascript Developer Jobs in California (NOW HIRING)

Versal Group, Inc.

Senior Software Engineer

San Francisco, CA · On-site

$144K - $190K/yr

Leading and mentoring an elite team of JavaScript engineers Qualifications * Recent large-scale production experience with ReactJS * An active GitHub account with at least 50 followers * Application ...

Walmart

Javascript Senior Software Developer

Sunnyvale, CA · On-site

$117K - $234K/yr

Walmart's Catalog organization is seeking a Senior Software Engineer with deep expertise in Java backend development to help build and scale critical services for our e-commerce platform. You will be ...

Walmart

Javascript Senior Software Developer

San Mateo, CA · On-site

$117K - $234K/yr

Walmart's Catalog organization is seeking a Senior Software Engineer with deep expertise in Java backend development to help build and scale critical services for our e-commerce platform. You will be ...

Walmart

Javascript Senior Software Developer

Fremont, CA · On-site

$117K - $234K/yr

Walmart's Catalog organization is seeking a Senior Software Engineer with deep expertise in Java backend development to help build and scale critical services for our e-commerce platform. You will be ...

Eitacies Inc

Senior Front End Developer

Los Angeles, CA · On-site

$55 - $60/hr

Job Title: Sr. Front-End Developer Location: Los Angeles, CA Duration: Long Term Work Mode : Onsite ... You have a strong command of HTML , CSS , JavaScript , and TypeScript . * You re experienced in ...

Walmart

Javascript Senior Software Developer

San Jose, CA · On-site

$117K - $234K/yr

We are seeking a talented and passionate Senior, Software Engineer (Back End), you will be part of Catalog Engineering team and will be responsible for developing high performance and scalable ...

Walmart

Javascript Senior Software Developer

Fremont, CA · On-site

$117K - $234K/yr

We are seeking a talented and passionate Senior, Software Engineer (Back End), you will be part of Catalog Engineering team and will be responsible for developing high performance and scalable ...

ClifyX

Sr. UI Web Developer

Sunnyvale, CA · On-site

$71.50 - $92.50/hr

Sr. UI Developer Sr. UI Developer with strong design and development skills in JavaScript, Angular ... Expert in writing JavaScript code * Thorough hands-on knowledge working with XML, JSON, HTML, CSS

Walmart

Javascript Senior Software Developer

San Jose, CA · On-site

$117K - $234K/yr

Walmart's Catalog organization is seeking a Senior Software Engineer with deep expertise in Java backend development to help build and scale critical services for our e-commerce platform. You will be ...

ClifyX

Sr. UI Web Developer

Sunnyvale, CA · On-site

$71.50 - $92.50/hr

Sr. UI Developer Sr. UI Developer with strong design and development skills in JavaScript, Angular ... Expert in writing JavaScript code * Thorough hands-on knowledge working with XML, JSON, HTML, CSS

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Senior Javascript Developer information

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How much do senior javascript developer jobs pay per hour?

As of Sep 2, 2026, the average hourly pay for senior javascript developer in California is $59.61, according to ZipRecruiter salary data. Most workers in this role earn between $53.37 and $67.84 per hour, depending on experience, location, and employer.

What is a senior JavaScript developer?

A Senior JavaScript Developer is a highly experienced programmer specializing in JavaScript, including frameworks like React, Angular, or Node.js. They are responsible for designing, developing, and optimizing web applications, ensuring high performance and maintainability. Additionally, they provide technical leadership, mentor junior developers, and collaborate with cross-functional teams to deliver scalable solutions. Strong problem-solving skills, deep knowledge of JavaScript best practices, and experience with modern development tools are essential for this role.

What are the key skills and qualifications needed to thrive as a senior JavaScript developer?

To thrive as a Senior Javascript Developer, a strong command of JavaScript (including ES6+), advanced front-end frameworks (like React, Angular, or Vue), and back-end technologies (such as Node.js) are essential, along with several years of professional coding experience. Familiarity with version control systems (like Git), CI/CD pipelines, and relevant certifications (e.g., AWS Certified Developer or JavaScript certifications) is highly valued. Excellent problem-solving abilities, mentorship skills, and effective communication help developers collaborate and lead within cross-functional teams. These skills enable Senior Javascript Developers to build robust applications, guide junior team members, and drive innovation in fast-paced tech environments.

What are typical challenges faced by senior JavaScript developers in day-to-day work?

Senior Javascript Developers often encounter complex challenges such as optimizing web application performance, ensuring code scalability and maintainability, and integrating with diverse APIs and services. They are also expected to troubleshoot legacy code and address security vulnerabilities, all while keeping up with the rapidly evolving JavaScript ecosystem. Collaborating with designers, product managers, and junior developers can add layers of complexity to project requirements. However, overcoming these challenges is rewarding and provides opportunities to shape technical strategy and influence best practices within the team.

What are the most commonly searched types of Javascript Developer jobs in California?

The most popular types of Javascript Developer jobs in California are:

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For Senior Javascript Developer jobs in California, the most frequently searched job titles are:

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Senior Javascript Developer jobs near you
Infographic showing various Senior Javascript 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 $123,997 per year, or $59.6 per hour.

Senior/Staff/Principal Qt C++ Software Engineer

Horizon Surgical Systems, Inc.

Los Angeles, CA • On-site

$135K - $186K/yr

Full-time

Re-posted 24 days ago

Job description

Open Position - Senior/Staff/Principal Qt C++ Software Engineer
Horizon Surgical Systems Inc.
Horizon Surgical Systems Inc. is revolutionizing the world of surgical ophthalmology by developing a novel, AI driven, and imaging-guided surgical robotic system. Horizon Surgical Systems Inc. aims to expand access to care, provide superior capabilities to the human surgeon, and enhance patient outcomes. Microsurgery in general and Ophthalmology are subfields of surgery for which the surgical outcomes can be significantly improved by robotic systems to allow superior dexterity, precision, accuracy, and visualization beyond the human surgeon's own capabilities.
We are seeking highly motivated, and intellectually inquisitive individuals looking to make a positive impact on healthcare via the development of robotic technology. The core values of Horizon Surgical Systems Inc. are:
  • Commitment to Excellence: We aim to deliver superior patient outcomes and surgeon experiences
  • Passion for Creativity and Innovation: We are driven by new ideas and aim to push the boundaries of what's possible
  • Teamwork and Camaraderie: We achieve our best when we collaborate and work together
  • Welcoming of Critical Opinion: We are enriched by constructive criticism and support the best ideas
  • Personal Accountability: We honor our commitments and take responsibility for our actions

Horizon Surgical Systems Inc. offers:
  • An opportunity to build autonomous surgical robotic systems driven by image guidance and AI technology for the future of affordable, high-quality healthcare.
  • The opportunity to work alongside clinicians, engineers, and global leaders in cutting-edge AI, imaging, and robotics technology.
  • Competitive compensation and an excellent company-paid benefits package.

We are seeking a highly motivated fullstack C++ software engineer to contribute to a variety of features in our cutting-edge imaging/robotics systems and advance the AI labeling process. This role requires a deep understanding of the software development life cycle, strong in C++, Python, Java, and JavaScript programming, and records of success in building product-level scalable systems and cross-functional collaboration. Knowledge or industrial experience in Robotic platforms, AI processes, and/or Cloud platforms is preferred.
We are seeking a highly motivated Qt C++ software engineer to contribute to a variety of features in our cutting-edge imaging/robotics systems and advance the AI labeling process. This role requires a deep understanding of the software development life cycle, strong in C++, Python, Java, and JavaScript programming, and records of success in building product-level scalable systems and cross-functional collaboration. Knowledge or industrial experience in Robotic platforms, AI processes, and/or Cloud platforms is preferred.
Required Qualifications
  • Educational Background:
    • Bachelor's, Master's or Ph.D. degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field.
  • Technical Skills:
    • Programming Languages: Strong modern C++ and at least one of Python, Java, or JavaScript. Experience in web development is a plus.
    • Operating System: Strong background in Linux development environment, including kernel-level knowledge, system-level programming, and networking.
    • Knowledge or experience in Robotics platforms (like ROS 2 or DDS) is a plus.
    • Knowledge or experience in AI labeling process is a plus.
    • Knowledge in Docker, Cloud platforms (AWS or Google Cloud) or Database systems is a plus.
  • Experience:
    • 5+ years of industrial experience in C++ software development.
    • 3+ years of desktop application GUI front-end development. Especially desktop front-end on the Qt framework.
    • Proven records of success in product-level scalable systems.
    • Hands-on experience in troubleshooting or system optimization is a plus.
  • Knowledge:
    • Proficiency in Object-Oriented programming and design patterns.
    • Deep understanding of the software development life cycle (e.g., requirement clarification, design and implementation, testing, and integration).
    • Familiarity with git, CI/CD, unit testing, automation testing.
  • Soft Skills:
    • Strong communication skills to collaborate with multiple teams.
    • Self-motivated; Ability to work in a fast-paced, dynamic work environment.
    • Desire to learn new technologies.
  • Other Requirements:
    • Willingness to work on-site in either Santa Monica, CA or Malibu, CA.
Responsibilities
  • Requirement Clarification
    • Work closely with cross functional teams to understand, clarify, and finalize requirements.
    • Translate requirements into components, features, or technical enhancements.
  • Design and Implementation
    • Design, implement, and maintain components/features using C++ in our Robotics system.
    • Design and implement components/features using Python, Java, or JavaScript for the AI labeling process and other Cloud backend components.
    • Collaborate with team members to optimize the system and the development process.
    • Contribute to code review and improve best practices in programming and documentation.
  • Testing & Reliability
    • Collaborate with QA to enable/improve automated testing.
    • Support QA testing and troubleshoot online issues.

This is an exciting opportunity to join a high-tech startup that is revolutionizing surgical robotics in ophthalmology.

Apply