Javascript - Senior Developers - AI Training - Edinburgh, UK

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

Benefits offered by this job

Remote work

Hourly pay up to $50

Paid tasks

Job summary

PROLIFIC ACADEMIC LTD is seeking an experienced reviewer of JavaScript and TypeScript solutions to help train AI systems. You will judge code quality, assess reasoning, run scripts in Node.js or a browser, and document where explanations are flawed or unsafe.

The role requires a CS/related degree and hands-on experience building scalable web applications. Remote work in the United States is supported, with paid tasks at up to $50 per hour.

Qualifications

• Bachelor’s degree in computer science, software engineering or related technical field.
• Professional background building scalable web apps with JavaScript/TypeScript.
• Confidence solving medium-to-hard coding challenges in JavaScript without assistance.
• Deep understanding of JavaScript event loop, closures, prototype chain and async patterns.
• Ability to write clean, modular code following ES6+ conventions with attention to security.

Responsibilities

• Review JavaScript/TypeScript solutions for functional accuracy and quality.
• Evaluate reasoning behind answers to challenging algorithmic problems.
• Execute generated code in browser or Node.js and assess outputs and performance.
• Identify inefficient implementations, obsolete syntax, incorrect API usage, and security issues.
• Provide structured feedback on model explanations and frontend/backend architecture.

Skills

JavaScript

TypeScript

Code review

Event loop understanding

Closures

Asynchronous programming

Frontend/Backend architecture

Education

Bachelor’s degree in computer science or related field

Tools

Node.js

Jest

Cypress

Webpack

Vite

REST APIs

GraphQL

Job description

Role overview

Apply practical JavaScript expertise to help train and assess AI systems. Assignments involve judging generated code and its technical reasoning, running scripts to verify results, and documenting where answers are incorrect, inefficient, or unsafe. A brief skills assessment is part of the selection process; those who pass may receive paid tasks, including some that call for an uninterrupted hour.

Responsibilities

• Review JavaScript and TypeScript solutions for functional accuracy and maintainable coding practices.
• Evaluate the reasoning behind answers to challenging algorithmic problems.
• Execute generated code in a browser or Node.js setting and assess its output and performance.
• Identify inefficient implementations, obsolete syntax, invented API usage, and security weaknesses.
• Write structured feedback on model explanations and discussions of frontend or backend architecture.

Requirements

• A degree at bachelor’s level or above in computer science, software engineering, or a related technical discipline.
• Professional background developing scalable web applications with JavaScript or TypeScript.
• Confidence solving medium-to-hard coding challenges in JavaScript without assistance.
• In-depth understanding of JavaScript’s event loop, closures, prototype chain, and asynchronous programming.
• Ability to produce and assess clean, modular code that follows current ES6+ conventions.
• Strong attention to detail when inspecting logic, memory behavior, and risks such as XSS or prototype pollution.

Nice to have

• Hands-on knowledge of React, Node.js, Vue, or Angular, plus tools such as Jest, Cypress, Webpack, or Vite.
• Understanding of REST and GraphQL APIs and server-side Node.js.

Benefits and work setup

The work is task-based and flexible, with remote participation available. Advertised researcher rates can reach $50 per hour, though rates and task availability depend on assignments. Some tasks require a focused block of up to one hour.