Frontend Engineer (Pixel-Perfect CSS/HTML) - Remote

Jobgether Srl; Málaga; Remote; EUR 95,000 - 127,000; Full time

Job summary

Mercor is seeking a Web Development Expert to deliver pixel-perfect front-end work on a fully remote contract. You will render a reference page and two replications at 1920×1080, judge which is closer, and document your findings with state-by-state rationale.

Ideal candidates have 3–8 years of professional web development, fluency with legacy and modern HTML/CSS, strong JavaScript, and hands-on experience with browser DevTools.

Qualifications

• 3–8 years of professional web development experience in frontend or full-stack work.
• Fluency across web eras, including legacy layouts.
• Command of hand-written HTML and CSS: semantic markup, flexbox, grid, media queries, and legacy layouts.
• Browser DevTools as muscle memory.
• Command-line comfort: unzipping an archive, standing up a static local server, and untangling a broken image reference.
• Enough JavaScript to read a page's scripts and understand their DOM impact.
• Professional written English for task justification.

Responsibilities

• Render a reference page and two candidate replications at 1920×1080. Judge which is the closer reproduction, state by state.
• Diff visual fidelity in detail: box model and spacing, typography, color and border treatment, image and asset handling, z-order, and overflow.
• Read the source of both attempts and grade construction quality. Distinguish a replication that is genuinely correct from one that merely looks correct at one viewport.
• Test responsiveness. Identify defects such as a nav bar that collapses at smaller widths.
• Write specific, evidence-cited justifications for every preference with concrete examples.
• Use the "this task is broken" escape hatch with judgment when a task cannot be completed.

Skills

HTML

CSS

JavaScript

DevTools

Command line

Tools

HTML

DevTools

Job description

Mercor is seeking a Web Development Expert to deliver pixel-perfect front-end work on a fully remote contract. You will render a reference page and two replications at 1920×1080, judge which is closer, and document your findings with state-by-state rationale.

Ideal candidates have 3–8 years of professional web development, fluency with legacy and modern HTML/CSS, strong JavaScript, and hands-on experience with browser DevTools.