Remote Senior JS Developer for AI Training & Evaluation

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

Job summary

Prolific is seeking a JavaScript Specialist- AI Training to join our Expert Network in the United States. You will evaluate AI-generated JavaScript/TypeScript code, validate logic, and run execution tests in Node or browser environments to ensure accuracy and quality.

The role requires deep knowledge of the Event Loop, closures, and async patterns, with a focus on clean ES6+ code and secure coding practices.

Qualifications

• Education: a BS, MS, or PhD in Computer Science, Software Engineering, or a closely related technical field.
• Professional Experience: building scalable web applications using JavaScript/TypeScript.
• Coding Proficiency: solve LeetCode Medium to Hard-level problems in JavaScript independently.
• Deep Domain Knowledge: expert understanding of the Event Loop, closures, prototypical inheritance, and asynchronous patterns (Promises, async/await).
• Code Quality: high standard for clean code, modularity, readability, and ES6+ standards.
• Attention to Detail: spot memory leaks, XSS, prototype pollution in model-generated code.

Responsibilities

• Evaluate Code Accuracy: review AI-generated JavaScript/TypeScript code for correctness and best practices.
• Validate Logic & Reasoning: audit step-by-step explanations for complex algorithms.
• Conduct Execution Testing: run model-generated scripts in Node.js or browser consoles to verify outputs.
• Annotate Model Performance: identify inefficient solutions or deprecated methods.
• Refine Technical Logic: provide feedback on frontend/backend architectures.

Skills

JavaScript/TypeScript

LeetCode problems

Code quality

Attention to detail

Event Loop knowledge

Asynchronous patterns (Promises, async

Education

BS/MS/PhD in Computer Science or related technical field

Job description

Prolific is seeking a JavaScript Specialist- AI Training to join our Expert Network in the United States. You will evaluate AI-generated JavaScript/TypeScript code, validate logic, and run execution tests in Node or browser environments to ensure accuracy and quality.

The role requires deep knowledge of the Event Loop, closures, and async patterns, with a focus on clean ES6+ code and secure coding practices.