Prolific

Prolific is a platform that enables researchers to quickly find trustworthy research participants. With a pool of over 120,000 active and verified participants, Prolific ensures high-quality responses through continuous monitoring and engagement. The p...

Professional Services

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51-250 (240)

Founded 1997

$0M raised

192 open positions

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HTML/CSS - Senior Developers - AI Training - Oklahoma City, USA

1 month, 3 weeks ago

United States

Contract

Senior

AI (Artificial Intelligence)

Software Development

CSS CSS Modules HTML Sass Tailwind CSS

Apply Now

Prolific

Professional Services

51-250

Founded 1997

$0M raised

View All Jobs 192

Description

Review AI-generated HTML/CSS for functional correctness, semantic structure, and adherence to best practices.
Audit AI explanations for layout and styling solutions to ensure the reasoning is technically sound.
Render model-generated markup and stylesheets to verify visual output and cross-browser behavior.
Identify inaccessible markup, inefficient selectors, deprecated attributes, and hallucinated CSS properties in model outputs.
Provide structured feedback on responsive design, component architecture, and design system implementation.
Validate the accuracy of AI-produced frontend code against high-quality implementation standards.

Requirements

BSc or higher in Computer Science, Software Engineering, Web Development, or a closely related technical field.
Real-world experience as a Senior Frontend Developer or UI Engineer specializing in HTML/CSS.
Ability to independently build complex, responsive layouts and components without relying on frameworks or libraries.
Expert understanding of the CSS cascade, specificity, box model, Flexbox, CSS Grid, accessibility standards (WCAG), and cross-browser compatibility.
High standard for clean, semantic markup and maintainable CSS, including BEM methodology, design tokens, and modern CSS standards.
Expert mastery of HTML5 and CSS3/4, including custom properties, animations, and modern layout systems.
Extensive experience with Tailwind CSS, SASS/SCSS, or CSS Modules, and familiarity with component-driven design systems.
Proficiency with browser DevTools, accessibility auditing tools such as axe and Lighthouse, and cross-browser testing platforms.
Background in Software Engineering or Frontend Development.
Ability to complete a 10- to 15-minute test to assess skills, if invited.
Preparedness to complete paid tasks that require one hour of uninterrupted work.

Benefits

Up to $40/hr depending on skills and experience.
Competitive pay rates.
Flexible hours.
Ability to work from home.
Quick onboarding after passing the assessment, with the ability to join in about 15 minutes.
Opportunity to influence the AI models of the future through your work.

Interested in this position?

Apply directly on the company website

Apply Now

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