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 - Canterbury, UK employer: Prolific
Prolific is an exceptional employer for Senior HTML/CSS Developers, offering a unique opportunity to contribute to the forefront of AI development while enjoying competitive pay rates and flexible working hours from the comfort of your home. Our collaborative work culture fosters innovation and personal growth, ensuring that you can enhance your skills in a supportive environment dedicated to building high-quality human data for AI training.
StudySmarter Expert Advice🤫
We think this is how you could land HTML/CSS - Senior Developers - AI Training - Canterbury, 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, brush up on your HTML/CSS skills and be ready for that quick assessment. Practise building responsive layouts and ensure you’re familiar with the latest standards and methodologies.
✨Tip Number 4
Apply through our website! It’s the easiest way to get your application in front of the right people. Plus, we love seeing candidates who take the initiative to apply directly. Don’t miss out on the chance to join our Expert Network!
We think you need these skills to ace HTML/CSS - Senior Developers - AI Training - Canterbury, UK
Some tips for your application 🫡
Show Off Your Skills:When you're filling out your application, make sure to highlight your experience with HTML and CSS. We want to see how you've tackled real-world projects, so don’t hold back on showcasing your best work!
Be Clear and Concise:Keep your application straightforward and to the point. Use clear language to describe your experience and skills, as this will help us quickly understand what you bring to the table.
Tailor Your Application:Make sure to customise your application for the role. Mention specific technologies and methodologies from the job description that you’re familiar with, like BEM methodology or accessibility standards.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the easiest way for us to keep track of your application and ensures you get all the latest updates about the role!
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 your experience with complex layouts, Flexbox, and CSS Grid. Prolific will want to see that you can build responsive designs without relying on frameworks.
✨Showcase Your Code Quality
Prepare examples of your clean, semantic markup and maintainable CSS. Be ready to explain your adherence to methodologies like BEM and how you ensure accessibility standards are met. This will demonstrate your commitment to high-quality code.
✨Familiarise Yourself with Tools
Get comfortable with browser DevTools and accessibility auditing tools like axe or Lighthouse. Being able to discuss how you use these tools in your workflow will show Prolific that you're serious about code accuracy and performance.
✨Practice Problem-Solving
Since you'll be evaluating AI-generated code, practice reviewing and debugging HTML/CSS. Think about how you would provide structured feedback on layout solutions and styling approaches. This will help you articulate your thought process during the interview.
