Remote Frontend Engineer - Next.js, Pixel-Perfect Contract

Amaris Group Sa; Barcelona; Remote; EUR 94,000 - 127,000; Full time

Job summary

Mercor seeks a Web Development Expert to join its remote team. The role emphasizes frontend mastery with HTML, CSS, and JavaScript, accessibility, and pixel-perfect layouts, requiring 3–8 years of professional web development experience.

You will render reference pages, judge reproductions, test responsiveness, and provide evidence-based justifications for design decisions, collaborating on model-evaluation projects with strong written English.

Qualifications

• 3–8 years of professional web development experience in frontend or full-stack work.
• Fluency across web eras and legacy layouts.
• Proficiency with hand-written HTML and CSS: semantic markup, flexbox, grid, media queries, and legacy layouts.
• Browser DevTools as muscle memory.
• Command-line comfort: static servers, broken image references.

Responsibilities

• Render a reference page and two candidate replications at 1920×1080; judge which is closer to the source.
• Diff visual fidelity including box model, typography, color, borders, and assets.
• Read source code of attempts and grade construction quality; compare correctness across viewports.
• Test responsiveness and identify defects like nav collapse at smaller widths.
• Provide evidence-based justifications for each preference with concrete reasoning.

Skills

Web development (3–8 years)

HTML

CSS

JavaScript

Accessibility

Responsive design

DevTools

Command-line tooling

English writing

Job description

Mercor seeks a Web Development Expert to join its remote team. The role emphasizes frontend mastery with HTML, CSS, and JavaScript, accessibility, and pixel-perfect layouts, requiring 3–8 years of professional web development experience.

You will render reference pages, judge reproductions, test responsiveness, and provide evidence-based justifications for design decisions, collaborating on model-evaluation projects with strong written English.