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Junior Javascript Developer Jobs in California (NOW HIRING)

The Climate Registry

Jr. Software Developer

Los Angeles, CA · On-site

$72K - $93K/yr

Reporting - SSRS, Power BI * Front End - HTML, CSS, JavaScript, Bootstrap * Version Control - Git ... Junior Software Developer". Applications without a cover letter will not be considered. All ...

The Climate Registry

Jr. Software Developer

Los Angeles, CA · On-site

$72K - $93K/yr

Reporting - SSRS, Power BI * Front End - HTML, CSS, JavaScript, Bootstrap * Version Control - Git ... Junior Software Developer". Applications without a cover letter will not be considered. All ...

Jobsbridge

Junior UI Developer II

Los Angeles, CA · On-site

$72K - $93K/yr

... bring junior developers to your level and skill Openness to learn new skills and techniques ... HTML, CSS, JavaScript) Experience with CSS pre-processors (less, SASS) Experience with one or more ...

SynergisticIT

Junior Web Application Developer

Sunnyvale, CA · On-site

$78K - $101K/yr

Junior Java Full Stack Developer -- Build, Deploy, and Get Noticed If you know how to code but are ... JavaScript, REST APIs, SQL, microservices, cloud fundamentals, and DevOps basics. This posting is ...

PTC

Junior Software Engineer

San Mateo, CA · On-site

$85K - $100K/yr

Junior Software Engineer Hybrid-San Mateo, CA. About Arena Arena, a PTC business, helps high-tech ... Foundational understanding of HTML, CSS, JavaScript , and general web development principles.

VSolvit

JUNIOR FULL STACK DEVELOPER

Norco, CA · On-site

$25 - $41/hr

Job Summary We are seeking a motivated and detail-oriented Junior Full Stack Developer to join our ... Build responsive, user-friendly UI components using HTML5, CSS3, React, and JavaScript/TypeScript.

VSolvit

JUNIOR FULL STACK DEVELOPER

Norco, CA · On-site

They are seeking a motivated and detail-oriented Junior Full Stack Developer to join their team ... and JavaScript/TypeScript. Optimize applications for usability and performance. • Assist in ...

Axos Bank

Jr. Personalization Developer

San Diego, CA

$71K - $92K/yr

About This Job Axos Bank is seeking a motivated Junior Martech Personalization Developer to join ... Familiarity with HTML/CSS and at least one scripting language (JavaScript,AMPscript, or Python) for ...

Axos Bank

Jr. Personalization Developer

San Diego, CA · On-site

$71K - $92K/yr

About This Job Axos Bank is seeking a motivated Junior Martech Personalization Developer to join ... Familiarity with HTML/CSS and at least one scripting language (JavaScript, AMPscript, or Python ...

FreedomPay

Jr. Front-End Engineer

San Francisco, CA · On-site

They are seeking a Junior Front-End Engineer to build pioneering local commerce applications and ... Required : • Familiarity with JavaScript • Experience with Node.js • Knowledge of MongoDB • ...

Jobsbridge

Jr. .Net Developer

Santa Ana, CA · On-site

$69K - $90K/yr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ... Qualifications SQL, jQuery,AJAX,JavaScript,Rest,C#, ASP.NET Additional Information Only OPT

FLIGHTSTORY

Junior Software Engineer

Los Angeles, CA

$95K/yr

TypeScript, React, Node.js, Python, JavaScript * Familiar with databases (SQL and NoSQL) and API ... Open source contributions or active participation in developer communities * Exposure to early ...

EyeUniversal LLC

Lead Developer

San Diego, CA · Remote

$62.75 - $82/hr

Lead Developer responsibilities include leading a team of junior developers, refining business ... Javascript, Ruby or PHP. Ultimately, you will ensure our websites, web applications, and software ...

FlightStory

Junior Software Engineer

Los Angeles, CA · On-site

$95K/yr

TypeScript, React, Node.js, Python, JavaScript * Familiar with databases (SQL and NoSQL) and API ... Open source contributions or active participation in developer communities * Exposure to early ...

Nastech Global

Frontend Developer

Sunnyvale, CA · On-site

$122K - $142K/yr

Required skills * 6+ years of JavaScript development experience * 6+ years of React development ... Mentor junior developers and participate in code reviews * Collaborate with DevOps and backend ...

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How much do junior javascript developer jobs pay per year?

As of Aug 14, 2026, the average yearly pay for junior javascript developer in California is $87,810.00, according to ZipRecruiter salary data. Most workers in this role earn between $66,100.00 and $85,900.00 per year, depending on experience, location, and employer.

What is a junior JavaScript developer?

A Junior JavaScript Developer is an entry-level programmer who specializes in using JavaScript to build web applications, websites, and front-end interfaces. They work under the guidance of senior developers to implement interactive features, troubleshoot issues, and improve functionality. Their responsibilities may include writing clean code, debugging, collaborating with designers, and learning new technologies. Typically, they are expected to have a basic understanding of JavaScript, HTML, CSS, and frameworks like React or Vue.js. This role is ideal for those starting their career in web development and looking to gain hands-on experience in a professional setting.

What are the typical daily responsibilities of a junior JavaScript developer?

As a Junior Javascript Developer, your day-to-day tasks often include writing and testing JavaScript code, fixing bugs, maintaining existing web applications, and collaborating on new features under the guidance of senior developers. You'll likely work closely with designers, backend developers, and QA testers to ensure seamless user experiences. Regularly attending team meetings, participating in code reviews, and updating documentation are also common. This collaborative and supportive environment is designed to help you develop your technical skills while contributing to real projects.

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

To thrive as a Junior Javascript Developer, you need a solid understanding of JavaScript fundamentals, HTML, CSS, and basic web development concepts, often supported by a relevant degree or coding bootcamp completion. Familiarity with tools such as version control systems (like Git), browser developer tools, and frameworks like React or Node.js is typically expected. Strong problem-solving abilities, eagerness to learn, and effective communication skills help you stand out in this position. These attributes are crucial for efficiently developing and maintaining web applications, collaborating with team members, and adapting to evolving project requirements.

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

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

What are popular job titles related to Junior Javascript Developer jobs in California?

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

What job categories do people searching Junior Javascript Developer jobs in California look for?

The top searched job categories for Junior Javascript Developer jobs in California are:

What cities in California are hiring for Junior Javascript Developer jobs?

Cities in California with the most Junior Javascript Developer job openings:

Junior Javascript Developer jobs near you
Infographic showing various Junior Javascript Developer job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $87,810 per year, or $42.2 per hour.

Sr. Chromium Developer

Advanced Micro Devices, Inc

Santa Clara, CA • On-site

$210K/yr

Full-time

Re-posted 7 days ago

Advanced Micro Devices rating

8.6

Company rating: 8.6 out of 10

Based on 13 frontline employees who took The Breakroom Quiz

27th of 157 rated electronics manufacturers

Job description

WHAT YOU DO AT AMD CHANGES EVERYTHING
At AMD, our mission is to build great products that accelerate next-generation computing experiences-from AI and data centers, to PCs, gaming and embedded systems. Grounded in a culture of innovation and collaboration, we believe real progress comes from bold ideas, human ingenuity and a shared passion to create something extraordinary. When you join AMD, you'll discover the real differentiator is our culture. We push the limits of innovation to solve the world's most important challenges-striving for execution excellence, while being direct, humble, collaborative, and inclusive of diverse perspectives. Join us as we shape the future of AI and beyond. Together, we advance your career.
THE ROLE:
AMD is looking for a strategic software engineering lead who is passionate about improving the performance of key applications and benchmarks You will be a member of a core team of incredibly talented industry specialists and will work with the very latest hardware and software technology.
THE PERSON:
We are seeking a Software Optimization Engineer with deep experience improving real-world browser performance in Chromium-based browsers. In this role, you will focus on identifying, analyzing, and resolving performance bottlenecks across the Chromium stack, working close to the browser engine, OS, and hardware. This position is ideal for an engineer who enjoys low-level performance analysis, system-level optimization, and collaborative work with browser, OS, and silicon teams to deliver measurable user-visible gains.
Key Responsibilities
  • Profile and optimize performance across Chromium subsystems, including Blink, V8, Skia, GPU/ANGLE, and browser multi-process architecture
  • Identify CPU, memory, GPU, and power bottlenecks using real workloads, benchmarks, and field telemetry
  • Implement performance improvements in areas such as page load, rendering, JavaScript execution, graphics/compositing, and browser responsiveness
  • Drive optimizations across platforms (Windows primary; Linux/macOS experience a plus), including interactions with OS schedulers, graphics stacks, and drivers
  • Analyze performance using industry-standard and custom tools (e.g., Perfetto, ETW, Chrome Tracing, VTune, PIX, GPUView, perf)
  • Collaborate with browser vendors, OS teams, compiler teams, and hardware partners to co-optimize software and platforms
  • Contribute clean, well-reviewed patches upstream to Chromium or downstream forks as appropriate
  • Translate benchmark and microarchitectural findings into practical, scalable browser improvements
  • Document performance investigations, results, and best practices; communicate findings clearly to technical stakeholders
  • software engineering experience, with a strong focus on performance optimization
  • Hands-on experience working with Chromium or Chromium-based browsers (e.g., Chrome, Edge, internal forks)
  • Strong proficiency in C++ and modern C++ performance best practices
  • Deep understanding of browser internals, including at least two of the following:
    • Rendering pipeline (Blink lifecycle, style/layout/paint)
    • JavaScript engines (V8 internals, JIT behavior, GC)
    • Graphics and compositing (Skia, GPU rasterization, ANGLE, WebGL)
    • Multiprocess/threading model and IPC in Chromium
  • Proven experience using low-level profiling and tracing tools to drive optimizations
  • Strong debugging skills across large, complex codebases
  • Ability to reason from microarchitectural behavior (cache, memory, SIMD, branch behavior) up to user-perceived performance

Preferred Qualifications
  • Experience optimizing browser performance on Windows, including ETW-based analysis and graphics stack interactions
  • Familiarity with Clang/LLVM, compiler-driven optimizations, and code-generation tradeoffs
  • Experience working with performance benchmarks (JetStream, Speedometer, WebXPRT, MotionMark, internal workloads)
  • Exposure to hardware-aware optimization (CPU topology, cache behavior, SIMD/AVX, GPU execution models)
  • Prior experience contributing to large open-source projects or upstream Chromium performance changes
  • Ability to mentor junior engineers and influence performance culture across teams

ACADEMIC CREDENTIALS:
  • Bachelor's or Master's degree in Computer Science, Computer Engineering, Electrical Engineering, or equivalent

This role is not eligible for visa sponsorship.
#LI-KW1
#remote
Benefits offered are described: AMD benefits at a glance.
AMD does not accept unsolicited resumes from headhunters, recruitment agencies, or fee-based recruitment services. AMD and its subsidiaries are equal opportunity, inclusive employers and will consider all applicants without regard to age, ancestry, color, marital status, medical condition, mental or physical disability, national origin, race, religion, political and/or third-party affiliation, sex, pregnancy, sexual orientation, gender identity, military or veteran status, or any other characteristic protected by law. We encourage applications from all qualified candidates and will accommodate applicants' needs under the respective laws throughout all stages of the recruitment and selection process.
AMD may use Artificial Intelligence to help screen, assess or select applicants for this position. AMD's "Responsible AI Policy" is available here.
This posting is for an existing vacancy.

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