The Front-end Developer is a key member of our Digital & Data division, responsible for building, optimising, and maintaining engaging, high-performing, and accessible digital experiences.

This role requires strong expertise in modern front-end technologies (React, JavaScript, HTML, CSS), alongside a deep understanding of accessibility, usability, and performance best practices. You’ll also support experimentation and optimisation initiatives, using tools such as VWO or equivalent A/B testing platforms, to deliver continuous improvements to our customer journeys.

Working closely with colleagues across product, design, CRO, and back-end teams, you’ll deliver user-centric solutions that make a measurable impact and support our business objectives.

Key Responsibilities

Front-end Development

• Develop responsive, scalable, and accessible solutions using React, JavaScript, HTML, and CSS.

• Implement and extend design systems to ensure consistent, high-quality UI delivery.

• Integrate APIs (REST/GraphQL) with robust data handling and caching strategies.

• Ensure cross-browser/device compatibility and responsive layouts.

• Maintain code quality through reviews, testing, and best practices.

Optimisation & Experimentation

• Support CRO strategies with targeted experiments, personalisation, and thorough testing.

• Analyse experiment results with data teams and recommend improvements.

• Identify, prioritise, and resolve defects efficiently.

Performance & Accessibility

• Champion accessibility, ensuring compliance with WCAG 2.2 AA standards.

• Monitor and improve Core Web Vitals (LCP, INP, CLS).

• Apply performance techniques such as code-splitting, lazy loading, and asset optimisation.

Collaboration & Agile Practices

• Participate in sprint planning, stand-ups, reviews, and retrospectives.

• Contribute to documentation, knowledge sharing, and continuous improvement of development processes.

• Work collaboratively across teams to deliver high-quality, user-centric digital products.

• Proven years experience as a Front-end Developer or similar role.
• Strong proficiency in React, JavaScript (ES6+), HTML5, and CSS3 (SASS/LESS or CSS-in-JS).
• Experience with version control (Git/GitHub) and CI/CD pipelines.
• Demonstrable experience with VWO or equivalent AB testing/optimisation platforms.
• Knowledge of web performance optimisation and accessibility standards (WCAG).
• Experience with testing frameworks (Jest, React Testing Library, Cypress).
• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent practical experience).

We’re growing fast and alongside a fun and friendly environment, we offer a fabulous package and amazing prospects – ideal if you’re already fantastic and want to become even better (our magic can help here).

Benefits include Pension, Life Assurance, discretionary company bonus, 28/33 days’ holiday including bank holidays, a Merlin Magic Pass which gives you and your friends and family free admission to all of our attractions worldwide, an Enjoy the Ride pass which entitles you and 5 loved ones unlimited entry into your regional attractions, 25% discount in our retail shops and restaurants and 40% discount on LEGO, plus lots more!

If you have any questions or if you require any assistance, because of a disability or medical condition, please contact us by email at Recruitment@Merlinentertainments.biz and one of the team will get back to you as soon as possible.