**What you'll bring to the team** 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. **Qualifications & Experience** + 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). **Benefits** 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.** **Pay Range** Competitive Submit a Referral (https://careers-uk-merlinentertainments.icims.com/jobs/9724/digital-front--end-developer/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834381883) At Merlin we welcome the world to our magical attractions and resorts every day and we want to reflect that same multicultural mix inside our business too. We strive to create an inclusive and diverse workplace where people can be themselves, have the same opportunities and thrive together. Because at Merlin, everyone matters! Together, we work to create a workplace where everyone feels valued, no matter their age, race, gender, disability or sexual orientation. Although we understand that we'll always be learning and growing, we aim to be the most inclusive and flexible employer in our industry. **Location (Country-County-City)** _UK-Greater London-London_ **Job Locations** _UK-Greater London-London_ **ID** _2025-9724_ **Employment Type** _Full-Time_ **Offer/Contract Type** _No End Date_ **Location Name** _Arbor Building - London_