Javascript - Senior Developers - AI Training - Long Beach, US

Role overview Contribute engineering expertise to the training and evaluation of AI systems, with an emphasis on JavaScript and TypeScript. You will inspect model-produced code and explanations, execute scripts to verify their behavior, and provide actionable feedback on technical reasoning. A short assessment is part of the entry process; successful candidates may then be invited to complete paid tasks.

Responsibilities - Judge whether generated JavaScript and TypeScript code works correctly and follows good engineering practices. - Review algorithm explanations for valid reasoning and identify gaps or errors. - Execute scripts in Node.js or browser consoles to check output and performance. - Annotate inefficient solutions, deprecated syntax, and fabricated library methods. - Detect logical defects, memory leaks, and vulnerabilities such as XSS or prototype pollution. - Provide structured observations about AI reasoning on frontend and backend design.

Requirements - Bachelor’s degree or higher in computer science, software engineering, or a related technical field. - Professional experience creating scalable web applications using JavaScript or TypeScript. - Ability to solve challenging algorithmic problems independently in JavaScript. - Deep knowledge of the event loop, closures, prototypes, promises, and async/await. - High standards for clean, modular, readable code and modern ES6+ practices. - Experience with a framework or runtime such as React, Node.js, Vue, or Angular.

Nice to have Familiarity with Jest, Cypress, Webpack, Vite, RESTful or GraphQL APIs, and Node.js backend logic.

Benefits and work setup The work is flexible and remote. Some assignments call for one continuous hour of work, while many take less time. Rates are task-dependent; the source listing indicates that some work may pay up to $50 per hour.