Senior JavaScript AI Validation Engineer

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

Job description

Role overview

Use substantial JavaScript engineering experience to improve AI model performance through expert review and feedback. The work spans checking code for correctness and quality, validating technical explanations, and executing scripts to confirm their behavior. Candidates complete a short skills assessment before being considered for paid assignments; some assignments require an uninterrupted hour.

Responsibilities

• Inspect AI-produced JavaScript and TypeScript for correct behavior and sound implementation choices.


• Verify the reasoning used to explain complex algorithmic answers.


• Run scripts in Node.js or a browser console to check outputs and performance.


• Point out inefficient code, deprecated language features, fabricated library calls, and security or memory problems.


• Provide organized feedback on model responses to frontend and backend engineering questions.

Requirements

• Bachelor’s, master’s, or doctoral education in computer science, software engineering, or a closely related area.


• Professional experience building scalable applications with JavaScript or TypeScript.


• Independent problem-solving ability on medium-to-hard JavaScript coding questions.


• Expert understanding of closures, the event loop, prototypal inheritance, and asynchronous patterns such as promises and async/await.


• Strong standards for readable, modular code using modern JavaScript.


• Careful code-review judgment, including awareness of memory leaks and vulnerabilities such as cross-site scripting and prototype pollution.

Nice to have

• Experience with one or more of React, Node.js, Vue, or Angular.


• Familiarity with Jest, Cypress, Webpack, Vite, REST APIs, GraphQL, and Node.js server logic.

Benefits and work setup

• Assignments offer flexible, remote participation. Rates advertised for this expertise can be as high as $50 per hour, depending on the task; work is not described as a fixed-hours position. Be prepared for some tasks to need up to an hour of uninterrupted focus.