Software Engineer - Frontend

Role Overview

Contract Frontend Software Engineer supporting AI training/evaluation work at Labelbox.

Quick facts

• Engagement: Hourly, at-will contractor
• Schedule: Fully remote and asynchronous (min. 15 hrs/week)
• Pay: $25–$100 per hour
• Start: Rolling

Responsibilities

• Review and evaluate AI-generated frontend code for:
  • correctness
  • efficiency
  • accessibility
  • clarity
• Write frontend solutions for UI and web development tasks across varying difficulty levels.
• Explain design decisions, code logic, and problem-solving strategies clearly for users/assessors.
• Identify and flag edge cases and ambiguities in problem statements or AI responses.

Requirements

• Fluent English with strong written communication skills.
• Ability to clearly explain frontend coding concepts.
• JavaScript expertise, including:
  • async/await
  • closures
  • DOM manipulation
  • ES6+ syntax
  • browser APIs
• 3–5 years of experience with modern frontend frameworks, tools, or web development domains (e.g., React, Vue, Angular).
• Bachelor’s degree in Computer Science or related field (or pursuing).

Nice to Have

• Master’s or PhD (preferred but not required).
• Experience with data labeling, RLHF, or other AI training projects.

Interview Process

• English screening with Zara (AI interviewer) to review background.
• Domain-specific interview assessing frontend expertise, including:
  • frontend frameworks
  • state management
  • performance optimization.