About the role

Role Overview

Join as a Frontend JavaScript Engineer on a fully remote, flexible contract (freelance) basis. You will evaluate, critique, and improve AI-generated JavaScript code, shaping the quality and usability of next-generation AI tools for developers.

Responsibilities

Evaluate AI-generated JavaScript for correctness, efficiency, and ES6+ best practices
Review and improve DOM manipulation approaches; identify performance issues and anti-patterns
Test whether AI models can produce responsive, interactive frontend experiences by solving UI/UX challenges
Identify bugs and suboptimal patterns in generated frontend logic; propose optimized, maintainable alternatives
Write clear, human-readable documentation explaining code structure, state flow, and event handling
Work independently and asynchronously, managing your own schedule to meet deadlines

Requirements

Deep, hands-on knowledge of core JavaScript concepts, including:
- async/await
- closures
- event loop
- DOM manipulation
3–5 years of practical experience with modern frameworks such as React, Vue, or Node.js
Strong instincts for clean, maintainable, efficient frontend code
Systematic approach to code quality evaluation and improvement
Excellent written communication to explain technical reasoning
Bachelor’s degree in Computer Science (preferred)

Nice to Have

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

About Sundayy

Alignerr (listed as Sundayy) is a technology organization focused on advancing AI and machine learning solutions. It collaborates with AI research labs and industry partners to develop tools that help AI understand and generate code, with an emphasis on innovation, quality, and remote flexibility.