xelys jobs xelys jobs

Frontend JavaScript Engineer

Alignerr

full-remotemidcontractfrontend Seattle, WA Today via LinkedIn

See how well this job matches your profile

Sign up to get an AI match score and generate a tailored application in seconds.

Get your match score

Tags

JavaScriptES6+ReactVueDOM ManipulationPerformance OptimizationUI/UXCode ReviewTestingRLHF

About the role

Role Overview

Alignerr is hiring Frontend JavaScript Engineers (AI Training) to evaluate and improve AI-generated JavaScript code. This fully remote, flexible contract role helps ensure AI tools write code that reflects strong engineering practices.

Responsibilities

  • Evaluate AI-generated JavaScript for:
    • correctness
    • efficiency
    • adherence to modern ES6+ standards
  • Assess DOM manipulation approaches and identify performance issues and anti-patterns
  • Tackle complex UI/UX challenges to validate responsive, interactive frontend behavior
  • Find bugs and suboptimal patterns in AI-generated frontend logic and propose optimized alternatives
  • Write human-readable documentation covering:
    • state flow
    • event handling
    • code structure
  • Work independently and asynchronously, following your own schedule

Requirements

  • Deep hands-on knowledge of core JavaScript concepts, including:
    • async/await
    • closures
    • event loop
    • DOM manipulation
  • 3–5 years practical experience with modern frameworks such as React, Vue, or Node.js
  • Strong instincts for clean, maintainable, efficient frontend code
  • Detail-oriented, systematic approach to improving code quality
  • Clear communicator who can explain technical reasoning in plain terms
  • Bachelor’s degree in Computer Science or related field (preferred)

Nice to Have

  • Experience with data labeling, RLHF, or other AI training/evaluation projects
  • Familiarity with testing frameworks, code review workflows, and frontend performance profiling
  • Background in technical writing or code documentation

Contract Details

  • Hourly contract
  • 10–40 hours/week
  • Fully remote with onboarding/training support provided

About Alignerr

Alignerr provides AI-related engineering and evaluation work focused on improving how AI systems understand and generate code. The role is centered on training and reviewing AI-generated JavaScript for correctness, performance, and modern standards, supporting next-generation AI tools for developers.

Scraped 5/12/2026

xelys jobs xelys jobs

Built for remote job seekers. Powered by AI.