At a Glance
- Tasks: Join our Expert Network to train and evaluate cutting-edge AI models using your HTML/CSS skills.
- Company: Prolific, a leader in building quality human data for AI.
- Benefits: Competitive pay up to $40/hr, flexible hours, and remote work options.
- Other info: Dynamic role with opportunities for professional growth and skill enhancement.
- Why this job: Make a real impact on AI development while working with innovative technologies.
- Qualifications: BSc in Computer Science or related field, plus senior frontend development experience.
The predicted salary is between 30000 - 40000 € per year.
About Prolific
Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world.
The role
We’re looking for Senior HTML/CSS Developers to join our Expert Network to help train and evaluate cutting‑edge AI models. If you have a background in Software Engineering or Frontend Development, we’ll send you a quick 10‑ to 15‑minute test to assess your skills. If successful, you’ll be invited to join Prolific as a participant, where you’ll get paid to help AI understand and produce high‑quality frontend code and design implementation. Researchers looking for your skills tend to pay up to $40/hr, depending on skills and experience. You must be prepared to complete paid tasks that require one hour of uninterrupted work, though many are shorter.
What you’ll bring
- Educational Background: a BSc or higher in Computer Science, Software Engineering, Web Development, or a closely related technical field.
- Professional Experience: real‑world experience as a Senior Frontend Developer or UI Engineer specialising in HTML/CSS.
- Coding Proficiency: ability to independently build complex, responsive layouts and components without relying on frameworks or libraries.
- Deep Domain Knowledge: expert understanding of the CSS cascade, specificity, the box model, Flexbox, CSS Grid, accessibility standards (WCAG), and cross‑browser compatibility.
- Code Quality: a high standard for clean, semantic markup and maintainable CSS, including adherence to BEM methodology, design tokens, and modern CSS standards.
What you’ll be doing in the role
- Evaluate Code Accuracy: review AI‑generated HTML/CSS for functional correctness, semantic structure, and adherence to best practices.
- Validate Logic & Reasoning: audit the step‑by‑step explanations provided by AI for layout solutions and styling approaches to ensure they are technically sound.
- Conduct Execution Testing: render model‑generated markup and stylesheets in appropriate environments to verify visual output and cross‑browser behaviour.
- Annotate Model Performance: identify areas where a model produces inaccessible markup, inefficient selectors, deprecated attributes, or hallucinated CSS properties.
- Refine Technical Logic: provide structured feedback on how models reason through responsive design, component architecture, or design system implementation.
Key Technologies
- Core Languages: expert mastery of HTML5 and CSS3/4, including custom properties, animations, and modern layout systems.
- Frameworks & Methodologies: extensive experience with Tailwind CSS, SASS/SCSS, or CSS Modules, and familiarity with component‑driven design systems.
- Testing & Tools: proficiency with browser DevTools, accessibility auditing tools (e.g., axe, Lighthouse), and cross‑browser testing platforms.
Benefits
Competitive pay rates, flexible hours, and the ability to work from home.
HTML/CSS - Senior Developers - AI Training - Cambridge, UK employer: Prolific
Prolific is an exceptional employer, offering Senior HTML/CSS Developers the chance to contribute to groundbreaking AI projects while enjoying competitive pay rates and flexible working hours from the comfort of their own homes. Our collaborative work culture fosters innovation and personal growth, providing opportunities to refine your skills and make a meaningful impact in the rapidly evolving field of AI training.
StudySmarter Expert Advice🤫
We think this is how you could land HTML/CSS - Senior Developers - AI Training - Cambridge, UK
✨Tip Number 1
Network like a pro! Reach out to fellow developers and industry contacts on LinkedIn or at local meetups. You never know who might have the inside scoop on job openings or can refer you directly to hiring managers.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best HTML/CSS projects. Make sure it’s easy to navigate and highlights your coding proficiency and design sense. This is your chance to impress potential employers before they even meet you!
✨Tip Number 3
Prepare for those tests! If you’re applying to Prolific, be ready for that quick 10-15 minute test. Brush up on your HTML/CSS knowledge and practice coding challenges to ensure you ace it and get invited to join their Expert Network.
✨Tip Number 4
Apply through our website! We make it super easy for you to find and apply for roles like the Senior HTML/CSS Developer position. Don’t miss out on the chance to work with cutting-edge AI models while getting paid for your expertise!
We think you need these skills to ace HTML/CSS - Senior Developers - AI Training - Cambridge, UK
Some tips for your application 🫡
Show Off Your Skills:Make sure to highlight your experience with HTML and CSS in your application. We want to see how you've tackled complex layouts and components, so don’t hold back on showcasing your best work!
Be Clear and Concise:When filling out your application, keep it straightforward. We appreciate clarity, so avoid jargon and get straight to the point about your qualifications and experiences.
Tailor Your Application:Customise your application to fit the role. Mention specific technologies and methodologies from the job description that you’re familiar with, like BEM methodology or accessibility standards. It shows us you’ve done your homework!
Apply Through Our Website:We encourage you to apply directly through our website. It’s the easiest way for us to review your application and get you into the process quickly. Plus, you’ll find all the info you need right there!
How to prepare for a job interview at Prolific
✨Know Your Stuff
Make sure you brush up on your HTML and CSS skills before the interview. Be ready to discuss complex layouts, Flexbox, and CSS Grid in detail. Prolific will want to see that you can build responsive designs without relying on frameworks.
✨Showcase Your Experience
Prepare examples from your past work that highlight your coding proficiency and adherence to best practices. Bring along a portfolio or code samples that demonstrate your clean, semantic markup and understanding of accessibility standards.
✨Understand the Role
Familiarise yourself with the tasks you'll be doing, like evaluating AI-generated code and providing feedback. Think about how your experience aligns with these responsibilities and be ready to discuss how you would approach them.
✨Ask Smart Questions
Prepare thoughtful questions about Prolific's projects and their approach to AI training. This shows your genuine interest in the role and helps you gauge if it's the right fit for you. Plus, it gives you a chance to demonstrate your knowledge of the industry.
