Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Help train AI by evaluating and refining HTML/CSS code for accuracy and best practices.
- Company: Join a forward-thinking tech company focused on AI development.
- Benefits: Earn up to $40/hr, enjoy flexible hours, and work from home.
- Other info: Dynamic role with opportunities for professional growth and learning.
- Why this job: Make a real impact on AI technology while showcasing your frontend skills.
- Qualifications: BSc in a relevant field and experience as a Senior Frontend Developer.
The predicted salary is between 30000 - 40000 £ per year.
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, you'll be invited to complete a quick 10‑ to 15‑minute test to assess your skills. Successful candidates will join Prolific as a participant, where you'll be paid to help AI understand and produce high‑quality frontend code and design implementation. Researchers may pay up to $40/hr, depending on skills and experience. Tasks typically 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.
- Code Quality: a high standard for clean, semantic markup and maintainable CSS, including adherence to BEM methodology, design tokens, and modern CSS standards.
- Attention to Detail: ability to spot subtle rendering issues, accessibility violations, specificity conflicts, or deprecated/non‑standard usage in model‑generated code.
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.
- 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.
Benefits
- Competitive pay rates.
- Flexible hours.
- Ability to work from home.
Javascript - Senior Developers - AI Training - Manchester, UK employer: Prolific Academic Ltd
Contact Detail:
Prolific Academic Ltd Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Javascript - Senior Developers - AI Training - Manchester, UK
✨Tip Number 1
Network like a pro! Reach out to fellow developers, join online forums, and attend local meetups. The more connections we make, the better our chances of hearing about job openings before they even hit the market.
✨Tip Number 2
Show off your skills! Create a portfolio that highlights your best work in HTML/CSS. We can use platforms like GitHub or personal websites to showcase projects that demonstrate our coding prowess and attention to detail.
✨Tip Number 3
Prepare for interviews by practising common coding challenges and technical questions. We should also be ready to discuss our past projects and how we tackled specific problems, especially those related to responsive design and accessibility.
✨Tip Number 4
Apply through our website! It’s the easiest way to get noticed. Plus, we can tailor our applications to highlight the skills and experiences that align with the job description, making us stand out from the crowd.
We think you need these skills to ace Javascript - Senior Developers - AI Training - Manchester, UK
Some tips for your application 🫡
Show Off Your Skills: Make sure to highlight your experience with HTML/CSS and any relevant projects you've worked on. We want to see what you can do, so don’t hold back!
Tailor Your Application: Customise your application to match the job description. Use keywords from the listing to show that you’re a perfect fit for the role. It helps us see how you align with what we’re looking for.
Keep It Clean and Clear: Your application should be easy to read and free of errors. Just like clean code, clarity is key! Make sure your formatting is consistent and professional.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates!
How to prepare for a job interview at Prolific Academic Ltd
✨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 and how you ensure clean, semantic markup. They’ll want to see that you can build without relying on frameworks, so be prepared to showcase your coding prowess.
✨Showcase Your Attention to Detail
During the interview, highlight your ability to spot subtle issues in code. Discuss examples where you've identified rendering problems or accessibility violations in past projects. This will demonstrate your keen eye for detail, which is crucial for the role.
✨Familiarise Yourself with BEM and Modern Standards
Since they value adherence to BEM methodology and modern CSS standards, make sure you can explain these concepts clearly. Bring examples of how you've implemented these methodologies in your work, as it shows you’re not just familiar but experienced.
✨Prepare for the Quick Test
Expect a 10- to 15-minute test to assess your skills. Practise coding challenges that focus on building responsive layouts and components. This will help you feel more confident and perform better during the actual test.