Javascript - Senior Developers - AI Training - Portland, USA

prolificacademicltd; United States; Remote; USD 41,000 - 69,000; Full time

Benefits offered by this job

Remote work

Competitive pay

Job summary

prolificacademicltd seeks an experienced JavaScript/TypeScript specialist to help train and assess AI models. You will review code and explanations, run tests in Node.js or browsers, and provide structured feedback on technical quality. Some tasks require a continuous hour of work and a brief skills assessment.

The role emphasizes reliability, modern ES6+ practices, and strong problem solving in a remote, flexible setup across the United States.

Qualifications

• Bachelor’s, master’s or PhD in computer science, software engineering, or related field.
• Professional experience building scalable web applications with JavaScript/TypeScript.
• Ability to solve medium to hard algorithmic problems independently in JavaScript.
• Strong knowledge of event loop, closures, prototypal inheritance, and async programming.
• Attention to modularity, readability, and modern ES6+ practices.

Responsibilities

• Check generated JavaScript and TypeScript for correctness, readability, and current coding practices.
• Assess explanations of algorithmic solutions for logical soundness.
• Run scripts in Node.js or browser environments and verify output and performance.
• Flag inefficient approaches, outdated syntax, and references to nonexistent library methods.
• Identify logic errors, memory leaks, and security issues in generated code.
• Provide feedback on model reasoning about frontend and backend design.

Skills

JavaScript

TypeScript

Asynchronous programming

Education

Bachelor's degree in CS/SE or related field

Tools

React

Node.js

Vue

Angular

Jest

Cypress

Webpack

Vite

Job description

Role overview

Use professional JavaScript and TypeScript expertise to help train and assess AI models. Work is task based: review generated code and explanations, check behavior through execution, and give structured feedback on technical quality. Participation follows a short skills assessment, and some paid tasks require an uninterrupted hour.

Responsibilities

• Check generated JavaScript and TypeScript for correctness, readability, and current coding practices.
• Assess whether explanations of algorithmic solutions are logically sound.
• Run scripts in Node.js or browser environments and verify their output and performance.
• Flag inefficient approaches, outdated syntax, and references to nonexistent library methods.
• Identify logic errors, memory leaks, and security issues in generated code.
• Provide feedback on model reasoning about frontend and backend design.

Requirements

• A bachelor’s, master’s, or doctoral degree in computer science, software engineering, or a closely related technical field.
• Professional experience building scalable web applications with JavaScript or TypeScript.
• Ability to solve medium to hard algorithmic coding problems independently in JavaScript.
• Strong knowledge of the event loop, closures, prototypal inheritance, and asynchronous programming with promises and async/await.
• Careful, detail-oriented approach to code quality, including modularity, readability, and modern ES6+ practices.
• Experience with JavaScript and TypeScript; familiarity with React, Node.js, Vue, or Angular, plus testing and build tools such as Jest, Cypress, Webpack, or Vite.

Nice to have

• Knowledge of REST APIs, GraphQL, and server-side development in Node.js.

Benefits and work setup

Tasks are offered flexibly and can be completed remotely. The source describes rates of up to $50 per hour, with actual tasks varying in length; some require one uninterrupted hour. A 10–15 minute assessment is used to evaluate suitability before invitation to participate.