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Javascript developer Jobs in Los Angeles, CA

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Javascript developer • los angeles ca

Last updated: 2 days ago
Remote JavaScript Engineer - AI Trainer

Remote JavaScript Engineer - AI Trainer

SuperAnnotateMontebello, California, US
Remote
Full-time
As an hourly paid, fully remote JavaScript Engineer for AI Data Training, you will review complex AI-generated code and explanations or generate new ones, evaluate the reasoning quality and step-by...Show moreLast updated: 9 days ago
Business Developer

Business Developer

COALITION FOR RESPONSIBLE COMMUNITY DEVLos Angeles, CA, US
Permanent
Under the direction of the Associate Director of Placement, the Business Developer will engage regional businesses and employers in high-growth sectors to create and secure career pathway opportuni...Show moreLast updated: 30+ days ago
  • Promoted
Angular Developer

Angular Developer

Cynet SystemsLos Angeles, CA, US
Full-time
Responsibilities : Develop frontend components using Angular framework ensuring responsiveness and optimal performance across various devices and browsers. Design and implement RESTful APIs and backe...Show moreLast updated: 2 days ago
Android Developer

Android Developer

Black Rock Solutions CorporationLos Angeles, CA, US
Full-time
A technology-driven company operating in the enterprise mobile software IT solutions sector, building scalable, secure, and user-centric Android applications for customers across B2B and consumer m...Show moreLast updated: 7 days ago
Tableau Developer

Tableau Developer

Arena StaffingLos Angeles, California, USA
Full-time +1
Arena Staffing is a fast-growing talent solutions provider that connects top-tier analytics and data professionals with leading companies across the U. We are seeking an experienced Tableau Develope...Show moreLast updated: 30+ days ago
Java Developer

Java Developer

InnoventricsLos Angeles, CA, US
Full-time
A fast-growing enterprise software company operating in the cloud-native application and SaaS platform sector, delivering scalable back-end services and integrations for B2B customers.We build robu...Show moreLast updated: 13 days ago
JavaScript Fullstack Engineer

JavaScript Fullstack Engineer

VirtualVocationsDowney, California, United States
Full-time
A company is looking for a Javascript Fullstack Engineer - Tech Lead.Key Responsibilities Collaborate with enterprise clients to create transformative digital products Tackle complex challenges ...Show moreLast updated: 14 days ago
  • Promoted
Full Stack Engineer with JavaScript and Python

Full Stack Engineer with JavaScript and Python

Stealth StartupWoodland Hills, California, United States
Full-time
Salary : $54,080 - 72,800 per year.Recent graduate (within the last 12 months).Proficient in back-end development languages. Familiarity with database management systems.Experience using version cont...Show moreLast updated: 17 days ago
ServiceNow Developer

ServiceNow Developer

Contact Government Services, LLCLos Angeles, CA, US
Full-time
Employment Type : Full-Time, Mid-level.Department : Information Technology.CGS is seeking a ServiceNow Developer to join our team supporting a wide-ranging technical support initiative for a large Fe...Show moreLast updated: 30+ days ago
Senior Web / JavaScript Engineer (R50029978)

Senior Web / JavaScript Engineer (R50029978)

Fox CorporationLos Angeles, California
Full-time
Fox CorporationUnder the FOX banner, we produce and distribute content through some of the world’s leading and most valued brands, including : FOX News Media, FOX Sports, FOX Entertainment, FOX Tele...Show moreLast updated: 30+ days ago
Senior Full Stack JavaScript Engineer / Hybrid in Santa Monica

Senior Full Stack JavaScript Engineer / Hybrid in Santa Monica

Motion RecruitmentLos Angeles, California, United States
Full-time
We’re working with a cutting-edge company at the intersection of music, technology, and fan engagement, helping artists connect more deeply with their audiences through powerful digital experiences...Show moreLast updated: 30+ days ago
  • Promoted
Relationship Manager, Construction Lending

Relationship Manager, Construction Lending

Ascent Developer SolutionsEncino, CA, US
Full-time
Relationship Manager, Construction Lending.Ascent Developer Solutions is a leading private lending platform, serving real estate developers nationwide in the acquisition, renovation, and constructi...Show moreLast updated: 13 days ago
  • Promoted
Salesforce Developer

Salesforce Developer

TECHOHANALos Angeles, CA, US
Temporary
Salesforce Developer (Salesforce Partner Experience Required).Los Angeles, CA (Hybrid – 2–3 days onsite per week).Salesforce Developer with prior Salesforce Partner or consulting experience.This ro...Show moreLast updated: 7 days ago
Frontend Developer -React / JavaScript

Frontend Developer -React / JavaScript

Sourcing ScreenLos Angeles, CA, US
Part-time
Freelancers will help improve AI systems through work extending coding benchmarks that reflect real-world development across diverse languages and domains. This is a unique opportunity to apply your...Show moreLast updated: 30+ days ago
SFDC Developer

SFDC Developer

TekWissen LLCWoodland Hills, California, USA
Full-time +1
TekWissen is a global workforce management provider headquartered in Ann Arbor Michigan that offers strategic talent solutions to our clients world-wide. Our client provider of digital technology an...Show moreLast updated: 20 days ago
tutor - JavaScript programming

tutor - JavaScript programming

BUKILos Angeles, CA, US
Full-time +1
Do you want to earn money by teaching? Would you like to have a flexible schedule without being in the office all the time? Are you creative and do you like to implement your own teaching strategy ...Show moreLast updated: 30+ days ago
Web Developer

Web Developer

Enthusiast Auto HoldingsLos Angeles, California, United States
Full-time
Pelican Parts is a leading online retailer of Porsche, BMW, and other German auto parts.For over 25 years, we’ve built a reputation among car enthusiasts as a trusted source for quality parts, expe...Show moreLast updated: 30+ days ago
  • Promoted
Web Developer

Web Developer

TradeJobsWorkForce90010 Los Angeles, CA, US
Full-time
Web Developer Job Duties : Regular exposure to business stakeholders and executive management,...Show moreLast updated: 30+ days ago
  • Promoted
Fullstack Developer

Fullstack Developer

California StaffingLos Angeles, CA, US
Full-time
Location : Hollywood, CA (On-site) Compensation : Up to $250,000 base salary + competitive benefits.We are seeking a highly skilled, innovative Full Stack Software Engineer to join our Enterprise Tec...Show moreLast updated: 6 days ago
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The cities near Los Angeles, CA that boast the highest number of javascript developer jobs are:
Remote JavaScript Engineer - AI Trainer

Remote JavaScript Engineer - AI Trainer

SuperAnnotateMontebello, California, US
9 days ago
Job type
  • Full-time
  • Remote
Job description

As an hourly paid, fully remote JavaScript Engineer for AI Data Training, you will review complex AI-generated code and explanations or generate new ones, evaluate the reasoning quality and step-by-step problem-solving, and provide expert feedback that helps models produce answers that are accurate, logical, and clearly explained. You will assess solutions for accuracy, clarity, and adherence to the prompt, identify errors in methodology or conceptual understanding, fact-check information, write high-quality explanations and model solutions that demonstrate correct methods, and rate and compare multiple AI responses based on correctness and reasoning quality.

This role is with SME Careers, a fast-growing AI Data Services company and subsidiary of SuperAnnotate that provides AI training data for many of the world’s largest AI companies and foundation model labs. Your work will directly help improve the world’s premier AI models while giving you the flexibility of impactful, detail-oriented remote contract work.

Key Responsibilities :

  • Develop AI Training Content : Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects.
  • Optimize AI Performance : Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance.
  • Ensure Model Integrity : Test AI models for potential inaccuracies or biases, validating their reliability across use cases.

Your Profile :

  • Minimum 2+ years of professional JavaScript experience in production environments.
  • Strong understanding of closures, async / await, prototype-based inheritance, and JavaScript event loop behavior, with deep proficiency in modern Vanilla JavaScript (ES6 / ES2015+).
  • Proven ability to evaluate correctness, readability, and performance of JavaScript code, including identifying subtle logic and edge-case issues.
  • Hands-on work experience in software engineering, preferably in roles involving code review, mentoring, or technical design discussions.
  • Significant experience using LLMs or AI coding assistants while programming, combined with a critical mindset for validating their output.
  • Excellent English writing skills, capable of producing clear, concise, and pedagogical technical explanations.
  • Strong proficiency with at least one major frontend framework (such as React, Angular, or Vue.js) or backend runtime (such as Node.js with Express or NestJS).
  • Minimum Bachelor’s degree in Computer Science or a closely related technical field.
  • Previous experience with AI data training, data annotation, or evaluation of AI-generated technical content is a strong plus; Minimum C1 English proficiency and a highly detail-oriented working style are required.
  • Preferred : contributions or merged PRs in JavaScript or TypeScript open-source projects, familiarity with bundlers and tooling (Webpack, Vite, Rollup), frontend–backend integration and Node.js runtime behavior, reviewing typed API layers, DTOs, or schema-driven designs, and experience evaluating frontend logic, async patterns, and state management.