Remote Frontend Engineer – Magento 2 & WordPress

Bluelight Consulting, Llc; Región Centro; Remote; MXN 1,781,000 - 2,798,000; Part time

Job summary

Mercor is seeking a Web Development Expert for a fully remote engagement. You will render reference pages, compare replications, and provide evidence-based rationales for your judgments, across modern and legacy layouts.

You will test responsiveness, analyze typography, spacing, colors, and DOM impact, while documenting reasons for each preference. Strong English writing is required; prior RLHF or code-review experience is a plus.

Qualifications

• 3–8 years of professional web development experience
• Fluency across web eras, including legacy layouts
• Strong command of hand-written HTML and CSS (semantic markup, flexbox, grid, media queries)
• Experience with browser DevTools
• Comfort with the command line and local server setup
• Ability to read and understand page scripts and their DOM impact
• Professional written English for task justification

Responsibilities

• Render a reference page and two replications at 1920×1080 and judge which is closer, state by state
• Diff visual fidelity: box model, typography, color, borders, images, z-order, overflow
• Read source code of both attempts and grade construction quality
• Test responsiveness and identify defects such as nav collapse at smaller viewports
• Provide evidence-based justifications for preferences with concrete examples
• Escape hatch: explain when a task cannot be completed and why

Skills

Frontend web

Legacy layouts

HTML CSS

DevTools

Command line

JavaScript basics

English writing

Job description

Mercor is seeking a Web Development Expert for a fully remote engagement. You will render reference pages, compare replications, and provide evidence-based rationales for your judgments, across modern and legacy layouts.

You will test responsiveness, analyze typography, spacing, colors, and DOM impact, while documenting reasons for each preference. Strong English writing is required; prior RLHF or code-review experience is a plus.