Javascript - Senior Developers - AI Training - Leeds, UK

prolificacademicltd; United States; Remote; USD 57,000 - 81,000; Full time

Job summary

prolificacademicltd seeks contributors with strong JavaScript and TypeScript skills to assist in training and evaluating AI models. After a brief skills assessment, successful candidates may take part in paid review tasks and focused sessions of up to an hour.

Tasks are remote and flexible, with compensation reported up to $50 per hour. Candidates should have a degree in CS or related field and experience building scalable web apps.

Qualifications

• Bachelor’s, master’s, or doctoral degree in computer science, software engineering, or a closely related technical field.
• Ability to solve medium to hard algorithmic coding problems independently in JavaScript.
• Professional experience building scalable web applications with JavaScript or TypeScript.
• Strong knowledge of the event loop, closures, prototypal inheritance, Promises, and async/await.
• Consistent use of modular, readable code and modern ES6+ practices.
• Ability to recognize vulnerabilities such as cross-site scripting and prototype pollution.

Responsibilities

• Check AI-generated JavaScript and TypeScript for correctness, clarity, and sound engineering practices.
• Assess whether explanations of algorithmic solutions are logically valid.
• Run generated code in Node.js or browser environments and examine its behavior and performance.
• Identify inefficient approaches, outdated syntax, invented library APIs, logical defects, memory leaks, and security issues.
• Provide structured feedback on model reasoning about frontend and backend design.

Skills

JavaScript

TypeScript

Algorithmic problems

Event loop

Closures

Promises/async

Education

Bachelor’s degree in CS/Software Engineering

Tools

React

Node.js

Vue

Angular

Jest

Cypress

Webpack/Vite

Job description

Role overview

Contribute professional JavaScript and TypeScript expertise to the training and evaluation of AI models. After a short skills assessment, successful candidates may be invited to complete paid review and feedback tasks, which can include focused sessions of up to an hour.

Responsibilities

• Check AI-generated JavaScript and TypeScript for correctness, clarity, and sound engineering practices.
• Assess whether explanations of algorithmic solutions are logically valid.
• Run generated code in Node.js or browser environments and examine its behavior and performance.
• Identify inefficient approaches, outdated syntax, invented library APIs, logical defects, memory leaks, and security issues.
• Provide structured 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, Promises, and async/await.
• Consistent use of modular, readable code and modern ES6+ practices.
• Ability to recognize vulnerabilities such as cross-site scripting and prototype pollution.

Nice to have

• Experience with React, Node.js, Vue, or Angular; testing and build tools such as Jest, Cypress, Webpack, or Vite; and REST APIs, GraphQL, or server-side Node.js.

Benefits and work setup

Tasks are paid, with rates reported as potentially reaching $50 per hour; actual availability and pay may vary by task. Work is described as flexible and remote, and candidates should be able to set aside uninterrupted time for some assignments. A 10–15 minute assessment is part of the selection process.