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Freelance Frontend Javascript Developer Jobs in California

Jobsbridge

Senior Full Stack Engineer

Fremont, CA

... front end JavaScript framework such as AngualrJS and backend technologies such as Node.js is ... Engineer with experience using front end JavaScript framework such as AngualrJS and backend ...

Nastech Global

Frontend Developer

Sunnyvale, CA · On-site

$122K - $142K/yr

Job Title: Senior Front end Developer Location: Sunnyvale, CA (onsite) Job Type: Full time Must ... Required skills * 6+ years of JavaScript development experience * 6+ years of React development ...

Redolent, Inc.

Backend Engineer

San Bruno, CA · On-site

Looking for a Mid to Senior level JavaScript developer with expetise in JavaScript, NodeJS, Kafka ... Front End Experience with proven experience with React JS or equivalent, Node.js and Javascript ...

Jobsbridge

Front End Developer

Los Angeles, CA

$112K - $130K/yr

Mobile is NOT required, just a plus Heavy JavaScript - Front End Dev. Longer stints at positions ... Developer to join their team in a contract to hire capacity. share ideas, passion, fast paced ...

Tranzeal Incorporated

FRONTEND DEVELOPER

Sunnyvale, CA · On-site

$121K - $141K/yr

Tranzeal Incorporated is seeking a Frontend Developer to join their team. The role involves ... Responsibilities : • Strong hands-on experience with Java or Javascript • Proficiency in React ...

TestingXperts

Front end Developer

Carlsbad, CA · On-site

$107K - $125K/yr

We are looking for front end developers... onsite in Carlsbad. Strong experience in HTML, Javascript, CSS and particularly AngularJS. Looking for mid-level resources preferably 5-7 years of ...

Jobsbridge

Web Front End Developer

San Jose, CA · On-site

What is needed: Front-end UI engineer for front-end client side development Must haves ... HTML5, CSS, JavaScript Jquery Nice to have: Testing frameworks for node Qualifications HTML5 CSS3 ...

Jobsbridge

Web Front End Developer

San Jose, CA · On-site

What is needed: Front-end UI engineer for front-end client side development Must haves ... HTML5, CSS, JavaScript Jquery Nice to have: Testing frameworks for node Qualifications HTML5 CSS3 ...

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 ...

BCforward

Software Engineer JavaScript

Sunnyvale, CA · On-site

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 ...

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Freelance Frontend Javascript Developer information

What is the difference between Freelance Frontend Javascript Developer vs Web Designer?

AspectFreelance Frontend Javascript DeveloperWeb Designer
SkillsProficient in JavaScript, HTML, CSS, frameworks like React or AngularDesign principles, UI/UX, graphic tools like Adobe Photoshop or Sketch
Work EnvironmentCode-focused, technical tasks, often collaborating with developers and clientsCreative, visual design, client presentations, branding
Common UsageBuilding interactive websites and web applicationsCreating website layouts, visual elements, and user interfaces

While both roles work on websites, Freelance Frontend Javascript Developers focus on coding and functionality, whereas Web Designers concentrate on visual design and user experience. Understanding these differences helps clients find the right expertise for their projects.

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

To thrive as a Freelance Frontend Javascript Developer, you need strong proficiency in JavaScript, HTML, CSS, and a solid understanding of popular frameworks like React or Vue, typically demonstrated through a robust portfolio. Familiarity with version control systems like Git, responsive design principles, and task runners or bundlers such as Webpack is highly valuable. Excellent communication, time management, and problem-solving skills help freelancers effectively coordinate with clients and deliver projects independently. These skills and qualities are crucial for producing high-quality, maintainable code while meeting client expectations and deadlines in a competitive freelance market.

How do freelance frontend JavaScript developers typically manage client expectations and project timelines?

Freelance Frontend Javascript Developers often work with multiple clients, which requires clear communication to set realistic expectations and deadlines. They usually break projects into milestones, provide regular progress updates, and use project management tools to track deliverables. Managing client expectations involves being upfront about technical limitations, estimated completion times, and potential challenges. Strong organizational skills and proactive communication are essential for building trust and ensuring successful project delivery.

What does a freelance frontend JavaScript developer do?

A Freelance Frontend JavaScript Developer creates and maintains the parts of websites and web applications that users interact with, using JavaScript along with HTML and CSS. They typically work independently, taking on projects for various clients rather than being employed by a single company. Their responsibilities include building responsive user interfaces, optimizing website performance, and ensuring cross-browser compatibility. Freelancers also communicate directly with clients to meet specific project requirements and deadlines.

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

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

What cities in California are hiring for Freelance Frontend Javascript Developer jobs?

Cities in California with the most Freelance Frontend Javascript Developer job openings:

Freelance Frontend Javascript Developer jobs near you

JavaScript Virtual Machine Compiler Engineer

Apple

Cupertino, CA • On-site, Remote

Full-time

Re-posted 27 days ago

Apple rating

8.0

Company rating: 8.0 out of 10

Based on 677 frontline employees who took The Breakroom Quiz

7th of 30 rated technology retailers

Job description

In this role, you have the opportunity to push the state of the art of JavaScript and WebAssembly performance. The JavaScriptCore team at Apple is looking for system programmers with compiler (especially just-in-time) and virtual machine experience. You will be working to deliver a faster and more secure web for all Apple products by improving JavaScriptCore's already world-class JIT compilers, runtime systems, and the garbage collector. The work is challenging, and the impact is worldwide. Join us.
Description
The JavaScriptCore team in WebKit is responsible for the JavaScriptCore engine, and our mission is to make JavaScript and WebAssembly execution both fast and secure. JavaScriptCore engineers work on all aspects of the engine: the compilation pipeline, the language runtime, the garbage collector, and the API for native apps. The compilation pipeline consists of the parser, the bytecode frontend, profile-guided type profiling, and multiple optimizing compiler backend that turn JS and Wasm programs into efficient ARM and x86 machine code.
In this role, you will work across all areas of the engine, improving the performance, security, and stability of the engine, as well as compatibility with other browsers. You will also help guide the evolution of the JavaScript and WebAssembly languages via public standards. You will drive new innovations, add new optimizations, tune performance, implement language features, in addition to diagnosing and fixing existing problems.
Minimum Qualifications
BS in computer science or equivalent
Experience programming in modern C++
Excellent debugging, critical thinking, and communication skills
Experience with compilers, parsers, and interpreters
Experience with assembly-level programming
Experience with performance analysis
Experience with memory allocators and garbage collectors
Preferred Qualifications
Hands-on experience with VMs with just-in-time compilers (e.g. JavaScript engines and JVMs)
Experience with web browsers
Knowledge of JavaScript and WebAssembly

What Apple employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Apple logo

About Apple

Sourced by ZipRecruiter

Imagine what you could do here! At Apple, new ideas have a way of becoming extraordinary products, services, and customer experiences very quickly. Bring passion and dedication to your job and there's no telling what you could accomplish. Dynamic, intelligent people and inspiring, innovative technologies are the norm here. The people who work here have reinvented entire industries with all Apple Hardware products. The same real passion for innovation that goes into our products also applies to our practices strengthening our dedication to leave the world better than we found it.

Industry

Computer and electronic product manufacturing

Company size

10,000+ Employees

Headquarters location

Cupertino, CA, US

Year founded

1976

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