Javascript - Senior Developers - AI Training - Bristol, UK

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

Benefits offered by this job

Remote work

Flexible hours

Job summary

Prolific Academic Ltd seeks a skilled reviewer to assess AI-generated JavaScript and TypeScript work. You will run scripts in Node.js or a browser, judge correctness and coding practices, and provide structured feedback on explanations and performance.

Bachelor’s in CS or related field is required, with strong problem-solving and deep knowledge of the event loop, closures, prototypes, and async programming. Remote work with competitive hourly rates is offered.

Qualifications

• Bachelor's degree in CS, software engineering, or related field.
• Professional experience developing scalable web apps with JavaScript or TypeScript.
• Ability to solve difficult coding problems independently, including medium and hard algorithm challenges.
• Expert understanding of the event loop, closures, prototypes, and async programming with promises/async-await.
• Strong code review judgment and adherence to clear, modular, modern ES6+ practices.
• Familiarity with modern JavaScript frameworks and web APIs.

Responsibilities

• Judge whether generated JavaScript and TypeScript solutions work as intended and follow sound coding practices.
• Review explanations of complex algorithmic answers for gaps or invalid reasoning.
• Execute scripts in Node.js or a browser environment and inspect outputs and performance.
• Identify inefficient implementations, obsolete syntax, and missing library methods.
• Look for memory leaks, security problems, and other subtle bugs in generated code.
• Write structured feedback about model responses to frontend and backend architecture questions.

Skills

JavaScript

TypeScript

Code review

Algorithm solving

ES6+ practices

Education

Bachelor’s degree in Computer Science or related field

Tools

Jest

Cypress

Webpack

Vite

Job description

Role overview

Use hands-on JavaScript engineering knowledge to help assess and improve AI-generated technical work. The assignment centers on reviewing code and reasoning, checking results by running scripts, and recording actionable observations. Candidates first complete a short assessment; successful applicants may then join a pool for paid tasks.

Responsibilities

• Judge whether generated JavaScript and TypeScript solutions work as intended and follow sound coding practices.
• Review explanations of complex algorithmic answers for gaps or invalid reasoning.
• Execute scripts in Node.js or a browser environment and inspect their output and performance.
• Point out inefficient implementations, obsolete syntax, and references to nonexistent library methods.
• Look for less obvious bugs, memory leaks, and security problems in generated code.
• Write structured feedback about model responses to frontend and backend architecture questions.

Requirements

• A degree at bachelor’s level or above in computer science, software engineering, or a closely related field.
• Professional experience developing scalable web applications with JavaScript or TypeScript.
• Confidence solving difficult coding problems independently, including medium and hard algorithm challenges.
• Expert understanding of the event loop, closures, prototypes, and asynchronous programming with promises and async/await.
• Strong code review judgment, with attention to clear, modular code and current ES6+ practices.
• Familiarity with modern JavaScript frameworks and web APIs.

Nice to have

Relevant experience may include React, Node.js, Vue, or Angular; Jest or Cypress; Webpack or Vite; REST or GraphQL APIs; and Node-based server logic.

Benefits and work setup

Paid tasks are offered through an expert participant network. Advertised researcher rates can reach $50 per hour, with rates and task lengths varying; candidates should be able to set aside an uninterrupted hour when needed. The work is described as flexible and possible to do remotely. Entry includes a 10–15 minute skills assessment.