Javascript - Senior Developers - AI Training - Sacramento, US

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

Job summary

Prolific Academic Ltd in the United States seeks a skilled JavaScript/TypeScript reviewer to assess generated code and explanations for correctness, quality, and safety. This is a remote, task-based role with a short skills assessment before being invited to paid tasks.

You will run scripts in browser or Node.js, evaluate outputs and performance, and flag issues such as inefficient approaches or security risks. Provide structured feedback on frontend and backend architecture.

Qualifications

• Bachelor's degree or higher in computer science, software engineering, or a related technical discipline.
• 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.
• Careful code review skills, including the ability to identify logical flaws and risks such as cross-site scripting or prototype pollution.
• Clear, modular code that follows modern ES6+ practices.

Responsibilities

• Review generated JavaScript and TypeScript for functionality, clarity, maintainability, and modern language practices.
• Check algorithmic solutions and their explanations for sound reasoning.
• Run generated scripts in browser or Node.js environments and assess their output and performance.
• Flag inefficient approaches, obsolete syntax, invented library APIs, security weaknesses, and potential memory leaks.
• Give structured feedback on model responses about frontend and backend architecture.

Skills

JavaScript

TypeScript

Algorithmic problem solving

Event loop & async patterns

Code review

Education

Bachelor's degree in Computer Science

Tools

React

Node.js

Vue

Angular

Job description

Role overview

Contribute professional JavaScript and TypeScript expertise to the training and evaluation of AI models. Work is task-based and focuses on judging generated code and technical explanations for correctness, quality, and safety. Candidates complete a short skills assessment before being invited to take paid tasks.

Responsibilities

• Review generated JavaScript and TypeScript for functionality, clarity, maintainability, and modern language practices.
• Check algorithmic solutions and their explanations for sound reasoning.
• Run generated scripts in browser or Node.js environments and assess their output and performance.
• Flag inefficient approaches, obsolete syntax, invented library APIs, security weaknesses, and potential memory leaks.
• Give structured feedback on model responses about frontend and backend architecture.

Requirements

• A bachelor’s degree or higher in computer science, software engineering, or a related technical discipline.
• 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.
• Careful code review skills, including the ability to identify logical flaws and risks such as cross-site scripting or prototype pollution.
• Clear, modular code that follows modern ES6+ practices.

Nice to have

• Experience with React, Node.js, Vue, or Angular; Jest or Cypress; Webpack or Vite; REST APIs or GraphQL; and server-side development in Node.js.

Benefits and work setup

Tasks are flexible and remote, with some requiring an uninterrupted hour; many are shorter. The source lists rates of up to $50 per hour, depending on the task. A 10–15 minute assessment is used to evaluate suitability.